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Results in Journal Agrinula : Jurnal Agroteknologi dan Perkebunan: 37

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Ramdy Dastama, Hendri Sahputra, Evi Julianita Harahap
Agrinula : Jurnal Agroteknologi dan Perkebunan, Volume 5, pp 20-29; https://doi.org/10.36490/agri.v5i1.223

Abstract:
Pendahuluan: Tanaman alpukat berasal dari dataran rendah atau tinggi Amerika Tengah dan diperkirakan masuk ke Indonesia pada abad ke-18, secara resmi antara tahun 1920-1930 indonesia telah mengintroduksi 20 varietas alpukat dari Amerika Tengah dan Amerika Serikat. Beragamnya hasil produksi dan kualitas buah alpukat dapat diperbaiki dengan metode sambung pucuk. Sambung pucuk merupakan salah satu cara perbanyakan tanaman dengan pertautan batang bawah dengan entris sehingga menjadi satu tanaman tunggal. Penelitian ini bertujuan untuk mengetahui pengaruh dari berbagai panjang entris terhadap keberhasilan sambung pucuk pada tanaman alpukat. Metode Penelitian: Penelitian ini dilakukan di Balai Benih Hortikultura Tanaman Pangan dan Perkebunan Saree Kabupaten Aceh Besar dengan metode Rancangan Acak Lengkap (RAL) non faktorial dengan empat taraf perlakuan yaitu panjang entris 7 cm= E1, 10 cm= E2, 13 cm= E3, dan 16 cm= E4. Parameter yang diamati berupa persentase sambung hidup, persentase entris dorman, persentase entris mati, jumlah daun dan jumlah tunas. Hasil Penelitian: perlakuan panjang entris berpengaruh nyata pada parameter jumlah daun dan jumlah tunas. Perlakuan terbaik menunjukkan pada taraf panjang entris 13 cm dengan persentase sambung hidup 88%.
Komal Tariq, Sabir Iqbal, Muhammad Fraz Ali
Agrinula : Jurnal Agroteknologi dan Perkebunan, Volume 5, pp 10-19; https://doi.org/10.36490/agri.v5i1.195

Abstract:
Introduction: Honeybee (Apis mellifera ) is known for pollination and honey production. There are some physicochemical properties through which the honey identifies. The current study was aimed to study the physiochemical characteristics of different honey sources collected from Islamabad and Mardan districts of Pakistan according to the prescribed international standards. Materials and Methods: This study was conducted in Honey Analysis Laboratory, Honey Bee Research Institute (HBRI), National Agriculture Research Center (NARC) Islamabad, to evaluate the physicochemical properties of honey collected from different floral sources of Islamabad and Mardan regions. The total of 12 honey samples of mellifera L. were tested. In this study 12 honey samples were collected from beekeepers of Islamabad and Mardan area. Physicochemical analysis such as moisture content, pH, electrical conductivity, free acidity, total soluble solids, density and pollen analysis were carried out. Results: showed that some of the samples have high value for moisture, pH and electrical conductivity while the other parameters were in normal range. Results of the physicochemical properties show the following range of values for moisture content (1.36-1.55%), pH (3.72-6.61), EC (0.1-1.1), acidity (10-30 meq/kg), total sugars (76.2-78.8%), density (1.23-1.46 kg/l), and pollen analysis showed multiple floral samples.
Putri Diana, Husnarika Febriani, Melfa Aisyah Hutasuhut
Agrinula : Jurnal Agroteknologi dan Perkebunan, Volume 5, pp 1-9; https://doi.org/10.36490/agri.v5i1.171

Abstract:
Introduction: The purpose of this study was to determine the type and diversity of invasive plants in Batang Gadis National Park (BGNP). Materials and Methods: This study was conducted in Batang Gadis National Park Resort 7 Sopotinjak, Mandailing Natal from February until April 2021. This study using the quadratic method by making transects and each transect is divided into 8 plots. Laying plots by purposive sampling as many as 8 plots. Results: BGNP Resort 7 had the invasive plants consisted of 12 families, 20 species and 1287 individuals. The highest species was found in Melastoma malabathricum L (230) and the highest important value index was found in Strobilanthes reptans (35.82%), while the species with the lowest significance index was Ageratum conyzoides (3.40%). The invasive plant diversity index was categorized as moderate (H'= 2.43).
Billy Yudha Syahputra, Razali Razali, Yunida Berliana, Ahmad Nadhira
Agrinula : Jurnal Agroteknologi dan Perkebunan, Volume 4, pp 162-173; https://doi.org/10.36490/agri.v4i2.186

Abstract:
Introduction: This study was aimed to examine the effect of beans positions of the fruit and Liquid Organic Fertilizer (LOF) on the growth of the cocoa seedlings (Theobroma cacao ) in early nurseries. Materials and Methods: This study was conducted at the agricultural experiment land, Universitas Tjut Nyak Dhien, Medan Helvetia District, Medan City from April to June 2020. This study used a Randomized Block Design (RBD) within two factors. The first factor was beans position of the fruit (B0= peduncular, B1= median, B2= apical). The second factor was LOF application (D0= un-treated, D1= 3 ml.l-1, D2= 5 ml.l-1). The variables including radicle length, seedlings height, number of leaves, leaf area, stem diameter, and root fresh weight were then processed using ANOVA and BNT at the rate of 5%. Results: The beans position of the cocoa fruit was an insignificant effect on all parameters of seedlings. LOF application was significant on seedlings height at 4, 6, and 8 weeks after planting (WAP) and also the number of leaves at 8 WAP, but it had an insignificant effect on radicle length, leaf area, stem diameter, and root fresh weight. The interaction of beans position of the fruit and LOF application on the vegetative growth of cocoa seedlings in the early nursery also did insignificant in all parameters of this study.
Nurul Lita Handayani, Husnarika Febriani, Melfa Aisyah Hutasuhut
Agrinula : Jurnal Agroteknologi dan Perkebunan, Volume 4, pp 152-161; https://doi.org/10.36490/agri.v4i2.167

Abstract:
Introduction: Ferns (Pteridophyta) are plant communities that have an ecological function as ground cover vegetation. The purpose of this research types of ferns (Pteridophyta) and the diversity index of ferns found in the Batang Gadis National Park Resort 7 Sopotinjak, Batang Natal Sub-district, Mandailing Natal District, North Sumatra Province. Materials and Methods: Descriptive survey method using quadratic plot of 24 plots in three transects. Results: It was found that five from 28 species of dominant fern were: Asplenium nidus, Asplenium normale, Shaeropteris glauca, Oleandra undulate, and Asplenium lobulatum. The diversity index of ferns (Pteridophyta) of 2.494 and was categorized as moderate, which means that the ferns (Pteridophyta) are stable, this indicates that the ecosystem is in a fairly balanced state.
Sri Mariani Siagian, Husnarika Febriani, Melfa Aisyah Hutasuhut
Agrinula : Jurnal Agroteknologi dan Perkebunan, Volume 4, pp 139-151; https://doi.org/10.36490/agri.v4i2.169

Abstract:
Introduction: Macroscopic fungi are simple plants that are often found growing wild in the wild. This study aims to determine the types of macroscopic fungi, to recognize the beneficial and harmful macroscopic fungi in Batang Gadis National Park Resort Area 7. Materials and Methods: A descriptive survey method with deliberate sampling using line transects, namely using a plot with a size of 20 m x 20 m as many as 36 plots and the distance of each plot is 10 m. Results: Found in 32 types of macroscopic fungi were obtained which belong to 11 families, such as: Polyporaceae, Ganodermatacea, Marasmiaceae, Stereaceae, Hygrophoraceae, Amanitaceae, Tricholomataceae, Russulaceae, Auriculariaceae, Sparassidaceae, and Psathyellaceae. The diversity index (H') of macroscopic fungi was 2.92 (medium). There are three types of macroscopic fungi that are consumed by the human in Sopotinjak Village as food and traditional medicine, and seven types that are not consumed because they contain toxins. There are 22 other species, namely Trametes cimulata, Lentinus tigrinus (Bull) Fr, Polyporus sp., Hygrophorus psittacinus, Trymyces sp., Hygrophorus aurantica (Wulfen), Polyporus sp.2, Collybia sp., Russula sp., Trametes sp.1, Ganoderma sp, Trametes sp.2, Stereum sp., Lignosus rhinocerus, Trametes versicolor (L), Trametes sp.3, Sparasis crispa (Wulfen), Hygrocybe conica (Schaeff), Polyporus sp.3, Trametes sp.4, Stereum hirsutum (Willd) Gray, Microporus xanthopus (Fr) Kuntze, and Tametes sp.5.
Silvana Prameswari, Bayu Pratomo
Agrinula : Jurnal Agroteknologi dan Perkebunan, Volume 4, pp 130-138; https://doi.org/10.36490/agri.v4i2.164

Abstract:
Introduction: This study aims to obtain concentration of shallot extract (Allium cepa ) and growth regulators to increase growth of Mucuna bracteata. Mucuna is a land cover plant that must be planted in oil palm plantation areas. It is very important to be able to cover the planting area. Materials and Methods: This study used two factorial in randomized block design. The first was concentration of shallot extract per 100 ml distilled water consists of 4 levels, such as control (B0), 10 cc (B1), 20 cc (B2), 30 cc (B3) and the second was the auxins-plant growth regulator consists of 4 levels: Control (G0), 100 ppm (G1), 200 ppm (G2), 300 ppm (G3). Data analyzed with ANOVA with a significant 5% and continued with the DMRT using SAS version 9.1.3. Results: It was found that effect of concentration of shallot extract had a significant effect on survival percentage of Mucuna bracteata at a concentration of 10 cc (B2) after opening the lid at four weeks after planting (WAP) and did not change until 8 WAP. Likewise, the number of leaves at the control concentration (B0) at the age of 6 WAP, and a concentration of 10 cc (B1) at the age of 7-8 WAP. The concentration of growth regulators and their interactions did not significantly affect the survive percentage and number of leaves in Mucuna bracteata.
Enda Sabda Gentri Sembiring, Julaili Irni, Rama Riana Sitinjak, Bayu Pratomo
Agrinula : Jurnal Agroteknologi dan Perkebunan, Volume 4, pp 122-129; https://doi.org/10.36490/agri.v4i2.162

Abstract:
Introduction: This study aims to determine the growth response of Mucuna bracteata cuttings to the concentration and duration of soaking shallot extract. Materials and Methods: This study used a factorial Randomized Block Design (RBD) with two factors, namely: shallot extract concentration (P) consists of 4 levels, include P0= untreated, P1= 10 ml, P2= 20 ml, P3= 30 ml, meanwhile the soaking time (Q) consists of 4 levels, such as Q0= momentarily dipping, Q1= 15 minutes, Q2= 30 minutes, Q3= 45 minutes. The data was processed by ANOVA and if significant, then further tested with Duncan Multiple Range Test (DMRT) at the rate of 5%. Results: The concentration of shallot extract, soaking time and their interaction had a very significant effect on the survival percentage of Mucuna bracteata D.C. cuttings. The highest survival percentage of cuttings of Mucuna bracteata on the effect of shallot extract concentration and soaking time was obtained in the P0Q0, P0Q1, and P3Q2 treatments after the lid was opened at 4 weeks after planting. In the number of leaves also had significant effect in the interaction of two factors
Aqarab Husnain Gondal, Qammar Farooq, Irfan Hussain, Muhammad Danish Toor
Agrinula : Jurnal Agroteknologi dan Perkebunan, Volume 4, pp 106-121; https://doi.org/10.36490/agri.v4i2.158

Abstract:
Introduction: Microbes perform better functions for agricultural production by promoting various direct and indirect mechanisms in soil and plants. If agricultural development is to satisfy the needs of an increasing global population, a deeper understanding of soil microbiology is needed. Furthermore, microbial biota such as yeast, bacteria etc., plays a significant role in food preservation by various mechanisms. Review results: Despite their pathogenicity, microbes play a substantial role in dispensing an assortment of fermented drinks and foods in the food industry and home. Probiotics, fermented foods and alcoholic beverages are flattering extra popular due to their health benefits and flavour. Furthermore, they increase the yield and growth of plants by improving mineral availability to the plants and by another mechanism. Review implementation: This present review also discusses the various organisms used in the agricultural processing of beverages and food and the benefits of using the following microbes in the beverage and food industry.
Riri Hartati Hutagalung, Tengku Boumedine Hamid Zulkifli, Irwan Agusnu Putra, Dedi Kurniawan
Agrinula : Jurnal Agroteknologi dan Perkebunan, Volume 2, pp 39-47; https://doi.org/10.36490/agri.v2i2.134

Abstract:
Penelitian ini bertujuan untuk mengkaji pemanfaatan pupuk kandang ayam dan pemberian pupuk kalium serta magnesium terhadap pertumbuhan jagung manis (Zea mays saccharata Sturt). Metode yang digunakan dalam penelitian ini adalah rancangan acak kelompok (RAK) Faktorial dengan tiga faktor. Faktor pertama yaitu pupuk kandang ayam (A) terdiri dari: A0= tanpa pupuk kandang ayam, A1= 10 ton/ha (100 g/polybag). Faktor kedua yaitu pupuk magnesium (D) terdiri dari: D0= 0 g/polybag, D1= 17 g/polybag. Faktor ketiga yaitu pupuk kalium (K), terdiri dari: K0= 0 KCl/ha, K1= 0,83 g/polybag, K2= 1,66 g/polybag, K3= 2,50 g/polybag. Hasil penelitian menunjukkan bahwa pemberian pupuk kandang ayam signifikan meningkatkan tinggi tanaman 4 dan 6 MST, bobot kering tajuk dan akar, bobot kering total, kandungan K dan Mg di daun, serapan hara K dan Mg pada tanaman jagung manis. Pemberian pupuk Mg (dolomit) signifikan meningkatkan bobot kering tajuk dan akar, bobot kering total, dan kandungan Mg di daun tanaman jagung manis. Interaksi pupuk kandang ayam dengan pupuk Mg berpengaruh tidak nyata terhadap semua parameter penelitian ini. Pemberian pupuk K (KCl) signifikan meningkatkan bobot kering tajuk, bobot kering total, dan kandungan K di daun tanaman jagung manis. Interaksi pupuk kandang ayam dengan pupuk K hanya berpengaruh nyata terhadap tinggi tanaman 2 MST. Interaksi pupuk Mg dengan K signifikan meningkatkan bobot kering tajuk dan bobot kering total tanaman jagung manis. Interaksi pupuk kandang ayam, pupuk Mg dan K signifikan meningkatkan bobot kering akar tertinggi pada interaksi A1D0K1 sebesar 20,93 g.
Yunida Berliana, Juli Mutiara Sihombing, Khairani Khairani, Erfan Wahyudi
Agrinula : Jurnal Agroteknologi dan Perkebunan, Volume 4, pp 61-72; https://doi.org/10.36490/agri.v4i1.122

Abstract:
Introduction: Grasses is one part of the forage, that it is necessary to support the production of grass management. The research was to determine the effect of cutting age and the use of liquid organic fertilizers (LOF) for king grass in overcoming the problem of forage feed availability. Materials and Methods: This research was conducted at the experimental field in Faculty of Agriculture and Animal Husbandry, Universitas Tjut Nyak Dhien, Medan Tuntungan Subdistrict, North Sumatra. This research used a split plot design with two factors. The main-plot was the cutting age, include T1= 35 days; T2= 45 days; T3= 55 days. The sub-plot was the different dosage of LOF, such as P0= un-fertilization; P1= 50 l.ha-1; P2= 75 l.ha-1; P3= 100 l.ha-1. The parameters were analyzed the F-test and continued with the LSD at level of 5%. Results: The cutting age significantly increased the tillers, yield of fresh matter, yield of dry matter, and storage capacity, but it had insignificant effect on the height of king grass with the highest increase was at the age of 55 days. The LOF doses significantly increased the height of king grass, tillers, and yield of fresh matter with the highest increase at the dose of 100 l.ha-1, but it had insignificant effect on yield of dry matter and storage capacity. Interaction between the cutting age with LOF significantly increase the highest of king grass height at 100 l.ha-1 of LOF + 55 days of 220.67 cm.
, Bagus Fitra Azmi, Perdana Andriano Tamba, Ayu Widya Lestari, Kamaruddin Kamaruddin, Eka Lestari, Tommy Suranta Ginting
Agrinula : Jurnal Agroteknologi dan Perkebunan, Volume 4, pp 94-105; https://doi.org/10.36490/agri.v4i2.154

Abstract:
Introduction: The research was aimed to obtain information on the impact of omission one test fertilization as a determination limiting factors for the growth and biomass of maize in variety Bonanza F1. Materials and Methods: The research was located in the experimental field, Faculty of Agriculture and Animal Husbandry, Universitas Tjut Nyak Dhien, Medan from December 2020 until February 2021. The research was applied by Randomized Block Design in non-factorial through fertilization of omission one test that has been converted (urea : SP-36 : KCl = 0.75 : 0.50 : 0.125 g polybag-1). The treatment of this research include P0 = non-fertilization; P1= N+P+K; P2= P+K; P3= N+K; P4= N+P using three replications. The parameters include plant height, leaf growth, total fresh weight, total dry weight, and the percentage of relative yield then processed using ANOVA and continued with DMRT at 5% ± standard error with SPSS v.20 software. Results: Informed that the omission one test technique significantly improved all the characteristics of maize in the variety Bonanza F1. The highest increase in plant height was found in the N+P of 83.65%, meanwhile, the highest leaf and biomass growth characters were found in N+P+K, ranged of 50.00 to 177.81% and 487.60 to 507.37%, respectively. It was obtained that the limiting factor for the maize growth in variety Bonanza F1 was found in the un-fertilization of nitrogen.
Koko Tampubolon, Alridiwirsah Alridiwirsah, Novilda Elizabeth Mustamu
Agrinula : Jurnal Agroteknologi dan Perkebunan, Volume 2, pp 48-52; https://doi.org/10.36490/agri.v2i2.135

Abstract:
Gulma jajagoan (Echinochloa crus-galli) dapat menyebabkan penurunan produksi padi sawah dan sudah dilaporkan resisten terhadap beberapa herbisida. Tujuan review artikel ini sebagai informasi awal yang dapat dijadikan alternatif pengendalian gulma jajagoan (E. crus-galli) yang sudah mengalami resisten herbisida pada areal pertanaman padi sawah. Hasil review menginformasikan bahwa gulma E. crus-galli tergolong toleran pada berbagai kondisi iklim, memiliki jumlah biji yang melimpah mengakibatkan populasinya selalu hadir di areal persawahan dan menimbulkan kerugian produksi padi sawah jika tidak dikendalikan, bahkan gulma ini sudah resisten terhadap beberapa herbisida. Upaya pengelolaan gulma E. crus-galli resisten-herbisida menyarankan menggunakan mode of action herbisida baik secara tunggal atau campuran sebagai manajemen resisten dan diharapkan dapat memutus siklus resisten di areal persawahan.
Muhammad Fraz Ali, Ummar Ali, Muhammad Ahsan Jamil, Muhammad Awais, Muhammad Jazib Khan, Muhammad Waqas,
Agrinula : Jurnal Agroteknologi dan Perkebunan, Volume 4, pp 73-93; https://doi.org/10.36490/agri.v4i1.138

Abstract:
Introduction: Garlic is an important crop growing all around the globe for its nutritional and medicinal purpose. Due to climate change soil production of garlic is affected and thus lower in yield. For improving the yield and increasing the quality of vegetables a new technique was developed is called hydroponic technology. Review results: In hydroponic, garlic can be produced on condition basis by providing proper nutrition and growth environment including air, light, soilless mediums, and water requirements. Methods like deep water culture, nutrient film technique, drip irrigation, bubble ponics are very common under different soilless mediums which includes organic, inorganic and synthetic. A detailed overview on production technology, nutrition, medium and hydroponic techniques which are discussed in details are given below in this review.
Muhammad Halim, Erfan Wahyudi, Irwan Agusnu Putra
Agrinula : Jurnal Agroteknologi dan Perkebunan, Volume 2, pp 9-12; https://doi.org/10.36490/agri.v2i1.124

Abstract:
Tujuan penelitian ini untuk mengetahui efektifitas pupuk NPK dan kompos tankos kelapa sawit dapat meningkatkan pertumbuhan bibit kelapa sawit (Elaeis guineensis Jacq) di pembibitan awal. Penelitian dilakukan menggunakan Rancangan Acak Kelompok (RAK) faktorial dengan dua taraf yaitu faktor pertama: pupuk NPK Mutiara 16-16-16 dengan 3 taraf yaitu P0= tanpa pupuk NPK, P1= NPK Mutiara 2 g/polybag P2= NPK Mutiara 4 g/polybag, Faktor kedua: kompos Tandan Kosong Kelapa Sawit dengan 4 taraf yaitu S0= subsoil, S1= subsoil + kompos TKKS 1:1, S2= subsoil + kompos TKKS 1:2, S3= subsoil + kompos TKKS 1:3. Hasil penelitian menunjukkan bahwa Pemberian pupuk NPK Mutiara 16-16-16 dapat meningkatkan pertumbuhan tinggi tanaman bibit tanaman kelapa sawit di pembibitan awal. Kompos Tandan Kosong Kelapa Sawit (TKKS) belum dapat meningkatkan pertumbuhan tinggi tanaman, luas daun, berat basah tanaman dan berat kering bibit tanaman kelapa sawit di pembibitan awal. Interaksi antara pemberian Pupuk NPK dan pemberian kompos Tandan Kosong Kelapa Sawit belum dapat meningkatkan pertumbuhan tinggi tanaman, luas daun, berat basah tanaman dan berat kering bibit kelapa sawit di pembibitan awal.
Elkawaril Ramadhanul Panjaitan, Tengku Boumedine Hamid Zulkifli, Irwan Agusnu Putra
Agrinula : Jurnal Agroteknologi dan Perkebunan, Volume 2, pp 17-22; https://doi.org/10.36490/agri.v2i1.127

Abstract:
Penelitian ini bertujuan untuk mengkaji efektifitas pemberian kapur pertanian (KapTan) dan komposisi berbagai media tanam bahan organik padat pada pertumbuhan bibit kelapa sawit (Elaeis guineensis Jacq) di pembibitan awal. Penelitian dilakukan dengan menggunakan Rancangan Acak Kelompok (RAK) faktorial dengan dua faktor. faktor pertama yaitu pemberian pupuk kalsium dengan 3 taraf: P0= tanpa pupuk kalsium, P1= pupuk kalsium 2 ton/ha (10 g/polybag), P2= pupuk kalsium 4 ton/ha (20 g/polybag). Faktor kedua yaitu media tanam dengan 4 taraf: M0= topsoil, M1= topsoil + kompos kandang sapi (1:1) M2= topsoil + sludge padat (1:1) dan M3= topsoil + kompos TKKS (1:1). Hasil Penelitian ini menunjukkan bahwa interaksi pupuk kalsium dan ragam media tanam terhadap pertumbuhan vegetative bibit tanaman kelapa sawit belum dapat memberikan pengaruh yang nyata pada tinggi tanaman, luas daun, volume akar, bobot basah tanaman, bobot kering tanaman, bobot basah akar tanaman, bobot kering akar tanaman kelapa sawit di pembibitan awal. Media tanam yang terbaik adalah Media tanam top soil dengan kompos kandang sapi dan Media tanam topsoil dengan kompos TKKS serta perlakuan yang terbaik pada perlakuan M1P1.
Asari Nasution, Ahmad Nadhira, Tengku Boumedine Hamid Zulkifli
Agrinula : Jurnal Agroteknologi dan Perkebunan, Volume 2, pp 28-32; https://doi.org/10.36490/agri.v2i2.130

Abstract:
Penelitian ini bertujuan untuk mengetahui pemberian respon pemberian pupuk urea dan urine sapi dapat meningkatkan pertumbuhan vegetatif bibit kelapa sawit (Elaeis guineensis Jacq) di pembibitan awal. Penelitian ini dilaksanakan pada September sampai Desember 2015 di Kebun Masyarakat Kelurahan Sari Rejo, Kecamatan Medan Polonia. Metode penelitian menggunakan rancangan acak kelompok faktorial dengan dua taraf yaitu: faktor pertama: pemberian pupuk urea dengan 3 taraf: P0= tanpa pupuk urea; P1= pupuk urea 2 g/polibag; P2= pupuk urea 4 g/polibag. Faktor kedua: pemberian urine sapi 4 taraf: U0= tanpa urine sapi; U1= urine sapi 80 ml/polibag; U2= urine sapi 160 ml/polibag; U3= urine sapi 240 ml/polibag. Hasil penelitian menunjukkan bahwa pemberian pupuk urea dapat meningkatkan tinggi bibit tanaman kelapa sawit umur 11 MST dengan dosis 4 g/polibag memberikan tinggi bibit kelapa sawit tertinggi 21,17 cm. Pemberian urine sapi belum dapat meningkatkan pertumbuhan bibit tanaman kelapa sawit. Interaksi antara pemberian pupuk urea dan urine sapi belum dapat meningkatkan pertumbuhan vegetatif bibit kelapa sawit di pembibitan awal.
Boy Patianta Ginting, Erfan Wahyudi, Tengku Boumedine Hamid Zulkifli
Agrinula : Jurnal Agroteknologi dan Perkebunan, Volume 2, pp 33-38; https://doi.org/10.36490/agri.v2i2.132

Abstract:
Penelitian ini bertujuan untuk mengkaji pemanfaatan limbah cair tahu dan pupuk NPKMg terhadap pertumbuhan vegetatif bibit kelapa sawit (Elaeis guineensis Jacq) di pembibitan awal. Penelitian dilaksanakan di Desa Karang Rejo Kecamatan Medan Polonia, Medan. Penelitian dilaksanakan pada Juni sampai September 2015. Metode yang digunakan dalam penelitian ini adalah Rancangan Acak Kelompok (RAK) faktorial terdiri dari dua faktor. Faktor pertama: pemberian pupuk NPKMg dengan 3 taraf : P0= tanpa pupuk NPKMg, P1= pupuk NPKMg 2 g/polibag, P2= pupuk NPKMg 4 g/polibag, P3= pupuk NPKMg 6 g/polibag. Faktor kedua: pemberian limbah cair tahu 4 taraf: L0= tanpa limbah cair tahu, L1= limbah cair tahu 80 ml/polibag, L2= limbah cair tahu 160 ml/polibag, L3= limbah cair tahu 240 ml/polibag. Peubah yang diamati: tinggi tanaman (cm), luas daun (cm2), berat basah tanaman (g), berat kering tanaman (g). Hasil penelitian menunjukkan pemberian pupuk NPKMg menunjukkan berpengaruh nyata pada tinggi tanaman, luas daun, berat basah dan berat kering tanaman. Pemberian limbah cair tahu dan interaksinya berpengaruh tidak nyata pada semua peubah amatan dalam penelitian ini.
Elisabeth Sri Pujiastuti, Ferlist Rio Siahaan, Yanto Raya Tampubolon, Juli Ritha Tarigan, Susana Tabah Trina Sumihar
Agrinula : Jurnal Agroteknologi dan Perkebunan, Volume 4, pp 1-12; https://doi.org/10.36490/agri.v4i1.107

Abstract:
Introduction: This research was conducted to determine the effect of several types of local microorganism solutions and manures on the growth and yield of peanut and their impact on the physical properties of ultisols. Materials and Methods: The researches was conducted in Simalingkar B, Medan using Factorial Randomized Block Design within three replications. The first factor was types of microbe sources of local microbial solutions, include un-treated waste (M0), pineapple (M1), orange (M2), and tamarillo (M3) wastes. The second factor was manure types, inluce un-treated manure (P0), chicken (P1), cow (P2), and goat (P3) manures. The parameters were: soil physical characteristics (bulk density, water content and total of pore space), plant height, stem diameter, number of pods, and dry seeds yield. Results: The types of local microorganism solutions only affect to plant height of peanut, but has insignificant effect on the physical properties of ultisols, and stem diameter, the number of filled pods.plant-1, and the dry seeds yield.ha-1 of peanut. The types of manure had significantly effected on plant height and number of filled pods.plant-1, but had insignificant effect on stem diameter, dry seeds yield.ha-1 and the physical properties of ultisols. The interaction of MOL sources and manure did not significantly affect the growth and yield of peanut as well as the physical properties of ultisols. Orange MOL and chicken manure could be increase the plant height of peanut by 18.61% and 6.75%, respectively, compared to un-treated. Goat manure showed the highest number of pods.plant-1 by 6.32% compared to un-treated.
, , , Muhammad Sulaman Saeed, Muhammad Sikander Hayyat, Muhammad Imran, Rohoma Tahir, Jitendra Mehta
Agrinula : Jurnal Agroteknologi dan Perkebunan, Volume 4, pp 13-21; https://doi.org/10.36490/agri.v4i1.109

Abstract:
Introduction: Magnesium is very important nutrient and performs a significant part in development and formation of many sink organs like roots and seeds. Furthermore, its fertilization significantly affects yield and numerous physiological mechanisms in different horticulture crop species. Moreover, its deficiency caused germination and reduction in horticulture crop stand. Nevertheless, its adequate concentration by foliar application plays important role in biochemical and physiological processes of plants like proteins synthesis, metabolism of carbohydrates, enzymes activation and energy transferring. Worldwide, many of our horticulture crops are facing low yield and quality problem due to fertilizer application at inadequate rate. The current review focuses on the impact of foliar applied Mg on some important cultivated horticultural crops (sugar beet, tomato, banana, potato, spinach, cauliflower, cassava, garlic, green case, potus, cucumber and grapes). Review results: Our extensive review has demonstrated that magnesium is very important factor limiting horticulture crop production but its negative impacts can be reduced by foliar application of magnesium. Foliar application of Mg can be recommended for correcting deficiencies because foliar sprays have no long term residual effect and every time fresh applications must be given to each crop. Moreover, amount depends on the nutrient status of crop and soil.
Hazen Arrazie Kurniawan, Fitria Fitria
Agrinula : Jurnal Agroteknologi dan Perkebunan, Volume 4, pp 22-26; https://doi.org/10.36490/agri.v4i1.108

Abstract:
Introduction: Bemisia tabaci is one of the important pests that cause direct damage by sucking plant fluids. The purpose of this study was to provide information on the life balance of the pest Bemisia tabaci in chili plant. Materials and Methods: This research was conducted at the Laboratory in the Faculty of Agriculture, University of Muhammadiyah Sumatera Utara, Medan from January to February 2020. The plants used in this test were three-month-old chili plant of Keriting Bogor The life balance test on plants was initiated by inserting 15 individuals of B. tabaci (5 males and 10 females) into a plastic tube. Results: The whitefly stuck in the hood from chili plant and has a long morphology of 0.2 to 0.3 mm. Eggs are inserted into plant tissue. Eggs under the leaves at the temperature of 26 to 32oC the incubation period lasts for 4 to 6 days, meanwhile at the temperature of 18 to 22oC increased to 10 until 16 days.
Zul Ilmi Hasibuan, Kartika Manalu, Efrida Pima Sari Tambunan
Agrinula : Jurnal Agroteknologi dan Perkebunan, Volume 4, pp 27-42; https://doi.org/10.36490/agri.v4i1.110

Abstract:
Introduction: The research was aimed to identify the types of macroscopic mushrooms and habit characteristics of macroscopic mushrooms in Taman Hutan Raya Bukit Barisan Karo Regency North Sumatra. Materials and Methods: The research was conducted in Taman Hutan Raya Bukit Barisan, Karo Regency, North Sumatra from August until October 2019. The research method used in sampling was the Exploration Method. Results: showed 23 species of macroscopic mushrooms. The highest family is Ganodermatacea with 4 species and the lowest family is Strophariaceae, Hydnangiaceae, Mycenaceae, Fomitopsidaceae, Crepidateceae, Agariceae, Inocybaceae, Russulaceae, Streaceae, and Tricholomateceae with 1 species. Habitat characteristics that are mostly found in weathered wood are found in 13 types of fungi, and at least found in live wood, only 1 species of macroscopic fungi are found.
Fazal Ur Rehman, , Maria Kalsoom, Nageen Naz, Muhammad Ghayoor Husnain, , Muhammad Asif Ilyas, Gulfam Yousaf, Rohoma Tahir, Usama Ahmad
Agrinula : Jurnal Agroteknologi dan Perkebunan, Volume 4, pp 43-60; https://doi.org/10.36490/agri.v4i1.123

Abstract:
Introduction: Maize (Zea mays) is one of the most important cereal crops. It is ranked as 3rd after wheat and rice. Due to its wide adaptability, diversified uses, and low production costs, it has great potential as a cereal crop. In the case of yield losses, various factors are involved. The fungal diseases of maize play a significant role in the reduction of both quantity as well as the quality of maize. Review Results: At the seedling stage, maize suffers from numerous diseases and many of them are seed-borne diseases. Anthracnose stalk rot (Colletotrichum graminicola), Charcoal rot of maize (Macrophomina phaseolina), Crazy top downy mildew disease (Sclerophthora macrospora), Corn grey leaf spot disease (Cercospora zeae-maydis), Aspergillus ear and kernel rot (Aspergillus flavus), Corn smut (Ustilago maydis), Southern corn leaf blight disease (Bipolaris maydis) etc. are important among these diseases.Chemical control of seed-borne pathogens of maize is rather difficult to achieve as a reasonably good. Due to the hazardous environmental effects of chemicals, the Integrated Management of the seed-borne fungal pathogens of corn is mostly preferred. The distribution, disease cycle, symptoms of the damage, effects of environmental factors, economical importance of disease, and integrated disease management options of major seed-borne fungal pathogens of maize have been reviewed in this review article from various currently available sources.
Safi’I Safi’I, Yunida Berliana, Tengku Boumedine Hamid Zulkifli
Agrinula : Jurnal Agroteknologi dan Perkebunan, Volume 2, pp 13-16; https://doi.org/10.36490/agri.v2i1.126

Abstract:
Penelitian ini bertujuan untuk mengkaji penggunaan ragam media tanam dan Pupuk Organik Cair (POC) terhadap pertumbuhan vegetatif bibit kelapa sawit (Elaeis guineensis Jacq) di pembibitan awal. Metode yang digunakan dalam penelitian ini adalah Rancangan Acak Kelompok (RAK) faktorial terdiri dari dua factor yaitu : faktor pertama: pemberian ragam media tanam 3 taraf: M0 = topsoil 100%, M1= pupuk kandang ayam 30% + abu sekam padi 30% + topsoil 40%, M2= kompos 30% + abu sekam padi 30% + topsoil 40%. Faktor kedua: pemberian POC 4 taraf: P0= tanpa POC, P1 = POC 10 ml/ l air, P2= POC 20 ml/l air, P3 = POC 30 ml/l air. Interaksi ragam media tanam dan POC terhadap pertumbuhan vegetative tanaman kelapa sawit (Elaeis guineensis Jacq) di pembibitan awal berpengaruh tidak nyata pada parameter pengamatan yakni tinggi tanaman, diameter batang, bobot basah dan bobot kering tanaman, namun berpengaruh nyata terhadap luas daun.
Fatma Fatma, Iwan Saputra Harahap, Irna Marisa Siahaan, Yunida Berliana
Agrinula : Jurnal Agroteknologi dan Perkebunan, Volume 2, pp 23-27; https://doi.org/10.36490/agri.v2i2.129

Abstract:
Penelitian ini bertujuan untuk mengetahui respon pertumbuhan tanaman samhong (Brassica juncea L,) terhadap pemberian Pupuk Organik Cair (POC) dengan konsentrasi dan interval pemberian yang berbeda pada budidaya secara hidroponik. Penelitian ini dilakukan pada Maret sampai Juli 2019 di Gang Eka Rosa, Jalan Eka Rasmi, Desa Johor, Kecamatan Medan Johor, Sumatera Utara. Metode penelitian menggunakan Rancangan Acak Lengkap faktorial terdiri dari factor pertama adalah konsentrasi POC yang terdiri dari 3 taraf perlakuan: K1= 1:5; K2= 1:7,5 dan K3= 1:10. Faktor kedua adalah interval pemberian POC yang terdiri dari 3 taraf perlakuan yaitu: N1= setiap 2 hari, N2= setiap 4 hari sekali dan N3= setiap 6 hari sekali. Hasil penelitian menunjukkan bahwa konsentrasi pupuk organik cair 1:10 (K3) dapat meningkatkan panjang daun (13,60 cm), bobot/perlakuan (106,50 g), dan bobot/tanaman samhong (170,78 g), namun berpengaruh tidak nyata terhadap lebar daun. Interval pemberian pupuk organik cair setiap 6 hari sekali (N3) signifikan meningkatkan panjang daun (14,50 cm), bobot/perlakuan (108,81 g), dan bobot/tanaman samhong (170,98 g). Interaksi kedua perlakuan ini berpengaruh tidak nyata terhadap semua parameter penelitian ini.
Muhammad Habibullah, Danes Suhendra
Agrinula : Jurnal Agroteknologi dan Perkebunan, Volume 3, pp 17-24; https://doi.org/10.36490/agri.v3i2.100

Abstract:
Introduction: Downy mildew control using pesticides has been used intensively and led to the onset of resistant strains. This research aims to find out the effect of bamboo vinegar administration on disease incidence, disease severity, disease progression, and growth of maize. Materials and Methods: This research was conducted from June to August 2020 in the laboratory and Screenhouse of the Faculty of Agriculture, Universitas Tidar. The experiment was experimentally conducted using a Completely Randomized Design (CRD) consisting of 3 treatments with 6. are plants. In each polybag used there are 3 maize so there are 54 plants tested. The treatment tested is of bamboo vinegar and maydis (negative control), of bamboo vinegar with inoculation P. maydis (positive control), application bamboo vinegar 2 ml l-1 with inoculation P. maydis. Observations on the agronomic influence of maize covering height, , and dry weight were analyzed using ANOVA at a significance of 5% followed by LSD test at the same real level using software R v. 4.0.2. Results: Bamboo vinegar showed lignification in the treatment of stronger bamboo vinegar in corn leaf tissue, did not decrease in disease incidence, but decreased the disease severity by 22.18% and decreased disease the progression by 34.74% based on AUDPC value. The growth of maize, bamboo vinegar-treated shows values are not significant negative control.
Erfan Wahyudi, Tengku Boumedine Hamid Zulkifli, , Razali Razali, Martin Heryono Panggabean
Agrinula : Jurnal Agroteknologi dan Perkebunan, Volume 3, pp 1-16; https://doi.org/10.36490/agri.v3i2.99

Abstract:
Introduction: The research was aimed to obtain the dosage of NASA liquid organic fertilizer (LOF), goat manure (GM) and combinations are appropriate to support the growth and yield of wax apple. Materials and Methods: This research was conducted at Payaroba Street, Binjai City, North Sumatra Province from Juni to December 2018. This research used the randomized block design factorial within the first factor was NASA LOF (C0= 0 ml.l-1; C1= 1 ml.l-1; C2= 2 ml.l-1; C3= 3 ml.l-1 in water), and the second factor was GM (K0= 0 kg.polybag-1; K1= 0.5 kg.polybag-1; K2= 1.0 kg.polybag-1; K3= 1.5 kg.polybag-1) using three replications. Parameters were analyzed using the ANOVA and continued with the least significance different at rate of 5%. Results: GM significantly increased the plant height, stem diameter, number of flower, and fruit weight of wax apple along with increasing doses until 1.5 kg.polybag-1 of 11.76%; 16.70%; 12.90%; and 7.55% respectively, and accelerating the flowering of 2.98 days compared to un-treated. The application of NASA LOF significantly increased the plant height, stem diameter, and number of flower by wax apple along with increasing doses until 3 ml.l-1 water by 7.51%; 46.61%; and 11.04%, and accelerating the flowering of 5.16 days compared to un-treated. The combination of NASA LOF at 2 ml.l-1 water and GM at 1.5 kg.polybag-1 significantly increased the stem diameter by 52.89% compared to the control combination. However, it did not show a significant effect on plant height, flowering, number of flower, and fruit weight of wax apple.
Muhammad Firmansayah, , Irwan Agusnu Putra, Dedi Kurniawan
AGRINULA: Jurnal Agroteknologi dan Perkebunan, Volume 3, pp 36-47; https://doi.org/10.36490/agri.v3i2.101

Abstract:
Introduction: This research was determined the growth response of cocoa (Theobroma cacao L.) in N-fertilizer and sugarcane bagasse compost. Materials and Methods: This research was conducted at agricultural area of ​​Sejati Street, Sari Rejo Village, Medan Polonia Sub-District, Medan. This research was conducted from August until December 2015. This research used therandomized block design in factorial. The first factor was N-fertilizer with 4 rates, 0 g.polybag-1 (P0), 2 g.polybag-1 (P1), 4 g.polybag-1 (P2),and 6 g.polybag-1 (P3). The second factor was the provision of sugarcane bagasse compost with 4 rates, 0 g.polybag-1 (K0), 2 g.polybag-1 (K1), 4 g.polybag-1 (K2) and 6 g.polybag-1 (K3). The observed data were analyzed by the F-test, and continued with the DMRT at level of 5%. Results: Composting bagase significantly affected the leaf area of cocoa seedling at 2 and 4 weeks after planting. The application of N-fertilizer had significant affected the number of leaves for cocoa seedling. The interaction of P2K2 (6 g.polybag-1 N and 4 g.polybag-1 of bagasse compost) showed the highest fresh- and dry-weight of cocoa seedling compared to other interactions, although the effect was not significant.
Fransisca Natalia Sihombing, , Triara Juniarsih
Agrinula : Jurnal Agroteknologi dan Perkebunan, Volume 3, pp 25-35; https://doi.org/10.36490/agri.v3i2.102

Abstract:
Introduction: This research was aimed to determine the relationship pattern of rainfall, humidity, and rainy day on the increase in pepper yield in North Sumatra. Materials and Methods: This research used the time-series data on factors of rainfall, humidity, rainy day, and yield of pepper for 14 years (2005 until 2018). Data analysis used the multiple linear regression analysis with the Eviews 10 software. Results: The rainfall, humidity, and rainy day simultaneous significantly increased the pepper yield of 55.767% in North Sumatra. A 1% increase in humidity can increase the pepper yield by 0.455 ton, but a 1 mm.year-1 increase in rainfall and a 1 rainy day can decrease the pepper yield in North Sumatra by 0.503 and 1.866 ton, respectively. The humidity had the value positive, meanwhile rainfall and rainy day had the value negative in pepper yield.
Billy Andreas Putra, , Yunida Berliana, Octanina Sari Sijabat
AGRINULA: Jurnal Agroteknologi dan Perkebunan, Volume 3, pp 48-60; https://doi.org/10.36490/agri.v3i2.103

Abstract:
Introduction: The purpose of this study was to determine the dosage of inorganic fertilizers, soaking time of the inoculation of the legume bacteria strains which were suitable for the growth and yield of peanut in tidal lowland. Materials and Methods: This research was conducted at tidal lowland in Sei Ular Village, Secanggang sub-District, Langkat District, North Sumatra from September to December 2019. The research used randomized block design in factorial. The first factor is the dose of inorganic fertilizers consisting of P0 = un-fertilizer (control), P1= urea 50 kg.ha-1 + TSP 180 kg.ha-1 + KCl 50 kg.ha-1, P2= urea 75 kg.ha-1 + TSP 205 kg.ha-1 + KCl 75 kg.ha-1, P3= urea 100 kg.ha-1 + TSP 230 kg.ha-1 + KCl 100 kg.ha-1. The second factor was the soaking time of the Bradyrhizobium japonicum bacterial strain consisting of T0= un-soaking time, T1= soaking time for 3 minutes, T2= soaking time for 6 minutes, and T3= soaking time for 9 minutes. Parameters were analyzed using ANOVA and BNJ analysis 5%.· Results: The application of urea 50 kg.ha-1 + TSP 180 kg.ha-1 + KCl 50 kg.ha-1 significantly increased the plant height, number of leaves, and root volume and showed the highest number of active nodules, dry pods.plot-1 and seed weight.plot-1 compared to other doses. The seed soaking time with the Bradyrhizobium japonicum strain and their interactions showed insignificant differences in all parameters of peanut plants in tidal lowland.
, Tengku Boumedine Hamid Zulkifli, Alridiwirsah Alridiwirsah
Agrinula : Jurnal Agroteknologi dan Perkebunan, Volume 3, pp 1-9; https://doi.org/10.36490/agri.v3i1.82

Abstract:
Pendahuluan: Gulma telah dilaporkan merugikan bagi pertanian, namun menguntungkan bai lingkungan. Laporan gulma Eleusine indica sebagai fitoremediasi logam berat pada lahan bekas tambang masih tergolong sedikit. Tujuan review artikel ini adalah mengkaji mekanisme gulma Eleusine indica dalam fitoremediasi beberapa logam berat. Hasil kajian: Gulma Eleusine indica tergolong tumbuhan hiperakumulator dikarenakan mampu meremediasi beberapa logam berat. Berdasarkan penelitian sebelumnya, bahwa gulma Eleusine indica memiliki mekanisme fitostabilisasi dan fitoekstraksi dalam meremediasi beberapa logam berat.
, Hasby Agung Prabowo Siregar
Agrinula : Jurnal Agroteknologi dan Perkebunan, Volume 2, pp 1-4; https://doi.org/10.36490/agri.v2i1.37

Abstract:
Penelitian ini bertujuan untuk mengkaji Pengaruh Pemberian ZPT Auksin dan Berbagai Media Tanam terhadap Bibit Kelapa Sawit (Elaeis guineensis Jacq) Di Pembibitan Awal (Pre Nursery). Metode yang digunakan adalah Rancangan Acak Kelompok (RAK) Faktorial terdiri dari dua factor yaitu: Faktor pertama: Pemberian Ragam Media Tanam 3 taraf : M0 = Top Soil 100%, M1= Top Soil 50%, Blotong Tebu 50%. M2= Blotong Tebu 70%, Top Soil 30%. Faktor kedua : Pemberian ZPT Auksin 4 taraf : A0= tanpa ZPT Auksin, A1= 10 ml/ liter, A2= 15 ml/liter, A3= 20 ml/liter. Ragam media tanam yang diberikan adalah media tanam yang sesuai dengan perlakuan yakni M0 = Top Soil 100%. M1= Top Soil 50%, Blotong Tebu 50%. M2 = Blotong Tebu 70%, Top Soil 30%. Blotong Tebu yang diberikan adalah Blotong yang telah siap pakai. Pemberian ZPT Auksin ke media tanaman topsoil sesuai dengan perlakuan yakni A0 = tanpa ZPT Auksin, A1 = 10 ml/liter, A2= 15 ml/liter, A3= 20 ml/liter. Pemberian ZPT Auksin diberikan satu bulan setelah tanam (5 MST) atau 2 kali penyiraman yakni 5 MST dan 7 MST. Hasil penelitian menunjukkan pemberian ragam media tanam (top soil 100%, top soil 50%, Blotong Tebu 50% dan Blotong Tebu 70%, top soil 30%), ZPT Auksin (A0= tanpa ZPT Auksin, ZPT Auksin 10 ml/ liter air, ZPT Auksin 15 ml/liter air dan ZPT Auksin 20 ml/liter), dan interaksinya memberikan hasil yang tidak nyata pada semua parameter pengamatan tinggi tanaman luas daun, diameter batang umur serta bobot basah tanaman dan berat kering.
Rezki Fauzi, , , Irwan Agusnu Putra, Yunida Berliana, Dedi Kurniawan, Razali Razali, Octanina Sari Sijabat
Agrinula : Jurnal Agroteknologi dan Perkebunan, Volume 3, pp 37-47; https://doi.org/10.36490/agri.v3i1.86

Abstract:
Pendahuluan: Penelitian ini bertujuan untuk mendapatkan dosis yang sesuai dari limbah kotoran sapi, kapur kalsium oksida maupun interaksinya dalam meningkatkan pertumbuhan dan produksi tanaman kacang panjang. Metode Penelitian: Penelitian dilaksanakan di Desa Secanggang, Kecamatan Secanggang, Kabupaten Langkat pada Juni-September 2017. Penelitian ini menggunakan Rancangan Acak Kelompok Faktorial, faktor pertama (limbah kotoran sapi) dosis L0 = 0 ton/ha; L1 = 10 ton/ha; dan L2 = 20 ton/ha. Faktor kedua (kapur kalsium oksida) dosis K0 = 0 ton/ha; K1 = 3 ton/ha; K2 = 6 ton/ha; dan K3 = 9 ton/ha. Data dianalisis uji F dan dilanjutkan uji DMRT 5% menggunakan software IBM SPSS Statistic v.20. Hasil Penelitian: Limbah kotoran sapi dosis 10-20 ton/ha signifikan meningkatkan tinggi tanaman umur 4 Minggu Setelah Tanam (MST) dan produksi tanaman/plot kacang panjang masing-masing berkisar 2,14-2,50% dan 13,00-15,98%, serta dosis 20 ton/ha signifikan meningkatkan produksi tanaman/sampel sebesar 17,44% dibandingkan kontrol. Aplikasi kapur kalsium oksida dosis 9 ton/ha signifikan meningkatkan tinggi tanaman kacang panjang pada umur 4 MST sebesar 2,46%, dan dosis 6-9 ton/ha siginifikan meningkatkan produksi tanaman/sampel dan produksi tanaman/plot, namun tertinggi terdapat pada dosis 6 ton/ha masing-masing sebesar 13,51% dan 20,16% dibandingkan kontrol. Interaksi limbah kotoran sapi dengan kapur kalsium oksida berpengaruh tidak nyata terhadap pertumbuhan dan produksi kacang panjang.
Dedi Kurniawan
Agrinula : Jurnal Agroteknologi dan Perkebunan, Volume 3, pp 10-18; https://doi.org/10.36490/agri.v3i1.80

Abstract:
Pendahuluan: Tujuan penelitian ini untuk menentukan interval penyiraman, pemberian mikoriza, serta media tanam terbaik pada pembibitan kakao. Metode Penelitian: Penelitian ini dilaksanakan di rumah kassa Balai Penelitian Tebu dan Tembakau Deli (BPTD) Medan Propinsi Sumatera Utara, dari bulan September sampai Desember 2017. Rancangan penelitian yang digunakan adalah Rancangan Acak Kelompok Faktor pertama adalah interval penyiraman, dengan tiga taraf yaitu penyiraman 1, 3, dan 5 hari sekali. Faktor kedua adalah mikoriza, yang terdiri dari tiga taraf yaitu tanpa mikoriza, mikoriza 50 gr/tan, dan mikoriza 100 gr/tan. Faktor ketiga adalah media tanam, dengan empat taraf yaitu media tanam tanah, tanah + serat, tanah + TKKS, dan tanah + sludge. Hasil Penelitian: Interval penyiraman 3 hari sekali dengan pemberian mikoriza konsentrasi 100 gr/tan pada media tanah + serat merupakan perlakuan yang terbaik untuk pertumbuhan bibit kakao yaitu pada diameter batang dan jumlah daun.
, Yunida Berliana, Ahmad Nadhira
Agrinula : Jurnal Agroteknologi dan Perkebunan, Volume 3, pp 28-36; https://doi.org/10.36490/agri.v3i1.83

Abstract:
Pendahuluan: Tujuan penelitian ini untuk mengidentifikasi jenis makrofauna tanah yang ada pada tanaman kakao yang menghasilkan dan tanaman kakao yang belum menghasilkan. Metode Penelitian: Penelitian ini dilaksanakan di kebun kakao rakyat, Kabupaten Langkat, dan dilanjutkan identifikasi serangga di Laboratorium Hama Tanaman, Fakultas Pertanian, Universitas Sumatera Utara, Medan dari bulan April sampai Mei 2019. Penelitian ini menggunakan metode deksriptif kuantitatif. Hasil Penelitian: terdapat beberapa ordo Hymenoptera, Orthoptera, Coleoptera, Oligochaeta, dan Araneae dengan jumlah makrofauna yang berbeda.
, Hilwa Walida, Badrul Ainy Dalimunthe, Abdul Rauf, Simon Haholongan Sidabuke, Rosmidah Hasibuan
Agrinula : Jurnal Agroteknologi dan Perkebunan, Volume 3, pp 19-27; https://doi.org/10.36490/agri.v3i1.85

Abstract:
Pendahuluan: Penelitian ini bertujuan untuk mengkaji alternatif pengelolaan lahan sawah melalui pemberian pupuk organik kompos sampah kota di Desa Aras Kabu, Kecamatan Beringin, Kabupaten Deli Serdang. Metode Penelitian: Penelitian ini dilaksanakan di Desa Aras Kabu Kecamatan Beringin, Kabupaten Deli Serdang dengan ketinggian 11 meter diatas permukaan laut. Analisa tanah dilaksanakan di Laboratorium Fisika Tanah, Konservasi Tanah & Air, dan Laboratorium Riset Teknologi, Fakultas Pertanian Universitas Sumatera Utara. Penelitian ini dilaksanakan pada Maret-Juli 2017. Penelitian ini menggunakan Rancangan Acak Kelompok non-faktorial dengan dosis bahan organik (B) kompos sampah kota, yaitu B0 = kontrol, B1 = 1,5% (28,70 ton/ha), B2 = 3,0% (57,40 ton/ha), B3 = 4,5% (96,10 ton/ha), B4 = 6,0% (104,80 ton/ha). Hasil Penelitian: Pemberian kompos sampah kota sebanyak 96,10 - 104,80 ton/ha dapat memperbaiki sifat tanah di Desa Aras Kabu, Kecamatan Beringin hingga kandungan bahan organik tanah mencapai 3%.
Agrinula : Jurnal Agroteknologi dan Perkebunan, Volume 2, pp 5-8; https://doi.org/10.36490/agri.v2i1.36

Abstract:
Penelitian ini bertujuan untuk mengetahui jarak tanam dan pemberian dolomite di Lahan Pasang Surut. Penelitian ini dilaksanakan lahan pasang surut yang ada di Desa Sei Ular , Kecamatan Secanggang, Kabupaten Langkat dengan ketinggian tempat ± 1 m dpl selama 4 bulan Juni - September 2014). Tujuan jangka panjang dari penelitian ini adalah dapat kiranya ditentukan diharapkan dapat menekan Na+ dalam tanah, sehingga dapat pH Tanah menjadi sesuai bagi tanaman kacang tanah. Penelitian dilakukan dengan menggunakan rancangan acak kelompok (RAK) Faktorial terdiri dari dua faktor yaitu : Faktor pertama : Variasi Jarak Tanam (J) yakni :J0 = Jarak Tanam 20 cm x 20 cm, J1 = Jarak Tanam 30 cm x 20 cm J2 = Jarak Tanam 40 cm x 20 cm. Faktor Kedua : Pupuk Dolomit (D), yakni D0 = 0/plot, D1 = 3 ton/ha, D2= 6 ton/ha D3= 9 ton/ha. Penelitian ini diharapkan dapat memberikan hasil produksi yang nyata . Hasil penelitian menunjukkan bahwa pemberian perlakuan jarak tanam dan pupuk dolomite pada tanaman kacang tanah memberikan hasil yang nyata pada beberapa pengamatan. Pemberian pupuk dolomite mampu memberikan tekanan atau mengurangi kadar Na di lahan pasang surut.
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