Jurnal Penelitian Pertanian Tanaman Pangan

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ISSN / EISSN : 2541-5166 / 2541-5174
Total articles ≅ 125
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Chanifah Chanifah, Ekaningtyas Kushartanti, Raden Heru Praptana, Parti Khosiyah
Jurnal Penelitian Pertanian Tanaman Pangan, Volume 5, pp 59-68; https://doi.org/10.21082/jpptp.v5n1.2021.p59-68

Abstract:
Jarwo super technology is a combination of superior rice farming technology, including the 2:1 paired rows planting system, high yield potential varieties, bio-decomposers, biological fertilizers, bio-pesticides, and agricultural mechanization application. The assessment aims to determine plant diversity, production increase, and financial feasibility of jarwo super technology rice farming. The assessment was conducted on March-Juni 2017 with the “demplot” method of applied jarwo super technology in Karanganyar Regency, Center of Java. Primary data is growth, production, and rice farming performance at the “demplot”, as well as existing farmer data. Samples were collected purposively, it’s the farmers who carried out the “demplot” and the farmers around the “demplot”, which meant 30 farmers. Data were descriptively analyzed using the average value, RCR, MBCR, net profit value, and BEP. The results showed that the rice yields with jarwo super was 15.63%higher than the existing farmers. Jarwo super rice farming is more efficient and economically feasible with RCR 1.44 value. MBCR is 11.6 value, it that each additional cost of implementing jarwo super rice farming of 1.000 IDR increases income by 11.600 IDR. Proportion of costs increase in jarwo super rice farming is 350.000 IDR, but profits reached 4.077.083 IDR. Net profit value of 1.7 shows that jarwo super rice farming can increase profits. Production level and dry grain harvested price on farmers level were 30.76%higher compared to BEP production and BEP price. Jarwo super rice farming is feasible to develop that because can increase farmer’s production and profits.
, B. Suwitono, Y. Hidayat, Fredy Lala
Jurnal Penelitian Pertanian Tanaman Pangan, Volume 5, pp 37-46; https://doi.org/10.21082/jpptp.v5n1.2021.p37-46

Abstract:
Approximately 80% of the land under the stands of coconut trees has the opportunity for intercropping. Corn farming under coconut stands can increase the efficiency of land use and provide additional income to farmers. One of the determinants of the success of increasing crop production is through balanced and fertilization rational and the use of superior varieties. The study aims to determine the effect of type, dose, and time of fertilization of corn on dry land under coconut stands. The study was conducted from June to October 2018 in Bumi Restu Village, Wasile District, East Halmahera Regency. The results showed that maize production in 40% shade conditions under coconut stands was influenced by the variety and fertilization, but only one variable interacted namely dry shelled weight.. Corn production on dry land under coconut stands achieved by the four varieties (Variety Nasa 29, Sukmaraga, Bhishma, and Lamuru) are as follows; 5.5 tons/ha; 4.7 tons/ha; 5.3 tons/ha and 5.2 tons/ha at a dosage of organic fertilizer 2.000 kg/ha,NPK Phonska 450 kg/ha, and urea 150 kg/ha. The Bisma and Lamuru varieties are shade tolerant and can be grown on dry land under the stands of coconut.
Dini Yuliani, Suprihanto Suprihanto, Sudir Sudir
Jurnal Penelitian Pertanian Tanaman Pangan, Volume 5, pp 15-24; https://doi.org/10.21082/jpptp.v5n1.2021.p15-24

Abstract:
Bacterial leaf blight (BLB) is a major disease of rice in Indonesia. Cilacap District of Central Java Province and Kuningan District of West Java Province are two endemic areas of BLB. The field trial was carried out in Cilacap and Kuningan in planting season of 2017 to evaluate resistance to BLB of 20 rice genotypes including 10 new improved varieties, 1 differential variety, 9 isogenic lines. The trial was arranged in a completed block design with three replications. Data collected were: 1) Incidences and severities of BLB; 2) Resistances of the rice genotypes to BLB; and 3) Pathotypes of Xanthomonas oryzae pv. oryzae (Xoo). The results showed the incidence of BLB disease in Cilacap of 0-100% and disease severity of 0 to 85.18%. In Kuningan, the disease incidence was 0- 100% and the disease severity from 0 to 79.26%. The varieties of Inpari-32, Java-14, and the lines of IRBB-5, IRBB-7, IRBB-21, and IRBB-57 were resistant to BLB in Cilacap and Kuningan. Those varieties/lines were expected to be used as a source of resistance to BLB in Cilacap and Kuningan. Xoo pathotype test showed that 14 Xoo isolates from Cilacap classified as pathotype VIII, while nine Xoo isolates from Kuningan were classified as Pathotype III. The planting of resistant varieties based on the existence of the dominant of Xoo pathotypes which specific in the field can reduce the incidence and the severity of BLB disease effectively and efficiently, while the assembly of BLB resistant varieties can use the resistant genes of xa5, Xa7, and Xa21 as they were still effective to control the dominant pathotypes of BLB in Indonesia.
Wasis Senoaji, Bambang Tri Rahardjo,
Jurnal Penelitian Pertanian Tanaman Pangan, Volume 5, pp 25-36; https://doi.org/10.21082/jpptp.v5n1.2021.p25-36

Abstract:
Nephotettix virescens is the most effective vector for transmitting tungro disease to rice plants. Two different viral particles cause Tungro transmission. Disease control was often not anticipated in the field, especially when planting is asynchronous, that cause been detected lately. At the cellular level, vector interactions with viruses indicate vector proteins response to viral in the body of vector insects which involved in virus transmission in plants. This study aims to describe the relationship between the differentiation of N. virescens vector protein profiles on the types of tungro symptoms resulting from the transmission to develop techniques for early detection and control of the transmission process. The workflow of this study is screening on vector insects to obtain protein candidates thought to have a role in tungro transmission that had never been previously reported. The results of this study suggested that proteins with estimated molecular weights of 132, 73, and 49 kDa are candidates for proteins that can be used for screening purposes or virulent vector tracing as an early warning alternative to control tungro disease in endemic areas.
Sawitania Situmorang, Setia Sari Girsang
Jurnal Penelitian Pertanian Tanaman Pangan, Volume 5, pp 69-78; https://doi.org/10.21082/jpptp.v5n1.2021.p69-78

Abstract:
Stapple food subsector is the second largest contributor after plantations subsector to Indonesian gross domestic product (GDP). However, since 2015, the productivity has been declining, though still provides a positive value. To anticipate the simultaniously decline of the productivity, the government has socialized the Seed Self Sufficiency Village (3SV) Programe with paddy. One of the provinces that has has been received the implementation of this 3SV programe is North Sumatra. Therefore, this study aims to analyze the economic performance of 3SV fostered village’s rice seed growers such as: production costs, profitability and business efficiency as well as the factors that affect the fostered paddy seed’s growers. This research was conducted using a survey method from August to November 2019. Data was collected through interviews with 30 fostered paddy seed’s growers in the districts of Deli Serdang, Batu Bara, Langkat, Serdang Bedagai, Simalungun, and South Nias. The location was chosen deliberately while the respondent farmers were chosen by judgmental method. The level of profitability is calculated using Gross Profit Ratio (GPR) while technical efficiency is analyzed using the Stochastic Frontier Production Function. The results showed that the rice seedling business in the observed area was strongly influenced by area of land, the amount of use of seeds and additional fertilizers. Meanwhile, increasing the use of labor, basic fertilizers, Growth Regulator (GR), and pesticides will reduce the performance of the rice seedling business. The availability of irrigation water and farmer groups has a big influence in reducing technical inefficiencies.
Rima Purnamayani, Adhe Phoppy Wira Etika, Haris Syahbuddin
Jurnal Penelitian Pertanian Tanaman Pangan, Volume 5, pp 47-58; https://doi.org/10.21082/jpptp.v5n1.2021.p47-58

Abstract:
Ncreasing the cropping index is a strategic policy and program to increase the efficiency of available land use. Referring to the potential and constraints of cropping index improvement, it is necessary to review the supporting components that affect cropping index implementation improvement in some agroecosystems. The purpose of this study was to aims to analyze the components of farming that support the implementation of increased cropping index in upland, rainfed lowland, and swampy land. This activity was carried out in five provinces namely Banten, West Java, DI Yogyakarta, East Nusa Tenggara, and South Sumatra from August to December 2018. The site selection was done purposively based on agroecosystems. The collected data were tabulated and analyzed using quantitative and qualitative approaches then interpreted descriptively and analyzed with multiple linear regression analysis. The dependent variable (Y) is the cropping index and the independent variables (xi) are labor, water availability, demonstration plot capital availability, water resources, supervisory, and extension media. The results of the combined linear regression analysis showed that water availability and supervisory were the supporting components that have a significant effect on every agroecosystem. Meanwhile, water, capital and labour availability were variables that have a significant effect on the implementation of increased cropping index in upland agroecosystems. The dissemination media has a significant effect only on rainfed lowland, while the capital availability and water sources were supporting components that have a significant effect at swampy land.
Slamet Bambang Priyanto, Roy Efendi, Muhammad Azrai
Jurnal Penelitian Pertanian Tanaman Pangan, Volume 5, pp 1-14; https://doi.org/10.21082/jpptp.v5n1.2021.p1-14

Abstract:
Low maize yields due to low nitrogen generally occur on marginal land. Maize development in Indonesia is directed at marginal land due to limited fertile land, especially in other lands in Indonesia besides Java. Therefore, the assembly of low N tolerant maize varieties plays an important role in increasing production on marginal land. Therefore, the improvement of low N tolerant hybrid maize was required. Information on the combining ability of inbred lines was important in the hybrid maize breeding program. This research aims were to determine genetic parameters, general combining ability, specific combining ability of maize lines and at three levels of N fertilization. This research was conducted at the Bajeng Experimental farm South Sulawesi from August to November 2019. The research was arranged in a split-plot design with two replications. The main plots were three nitrogen levels i.e. 0 kg N/ha, 100 kg N/ha, 200 kg N/ha and the subplots were 36 hybrids formed from a half diallel cross and its parents. The results showed that compared to yield at 200 kg N/ha, yield at 100 kg N/ha and 0 kg N/ha reduced 18,80% and 38,69% respectively. ear number, ear weight, shelling percentage and number of seeds per row were controlled by non-additive genes, while moisture content, 100 seeds weight, ear length and number of rows per ear were controlled by additives gene. Lines AVLN 118-7 and AVLN 83-2 have good GCA for yield grain overall levels of fertilization. Crosses AVLN 83-2/AVLN 124-4, AVLN 83-2/AVLN 32-8, and AVLN 122-2/AVLN 124-9 have the good combining ability under both low and high N conditions. They could be used to develop low N tolerant varieties.
Hamyana Hamyana, Agus Cahyono, Ainu Rahmi
Jurnal Penelitian Pertanian Tanaman Pangan, Volume 5, pp 79-90; https://doi.org/10.21082/jpptp.v5n1.2021.p79-90

Abstract:
One of the problems faced by maize farmers in Sumberpucung District, Malang, East Java, is the relatively small scale of the business, which has implications for high production costs. Efforts that can be taken to resolve these problems include a partnership pattern. This study aims to determine the feasibility of a partnership pattern and to analyze its effect on the income of maize farmers in Sumberpucung District. The research method is survey. Marginal benefit cost ratio (MBCR) analysis aims to determine the feasibility of partnership pattern farming and simple linear regression analysis is used to determine the effect of partnerships on income. The research object is the maize farmers who have partnered and who have not partnered in Sumberpucung District. The sampling technique used stratified proportional random sampling with a sample size of 76 people who were determined using the Slovin formula. The results showed that the income of partnership-patterned maize farmers was greater than that of non-partnership maize farmers with a difference of Rp. 7,573,000 / ha. Analysis of the marginal benefit cost ratio (MBCR) with a value of 9.98 (> 1) proves that the partnership pattern of maize farming is feasible to apply. This means that each additional cost of Rp. 1 will increase the benefits of farmers by 9.98. Regression analysis shows that the partnership has a significant effect on the income of maize farmers. Hypothesis testing shows the significance value of the partnership variable is 0.000 (<0.05). Thus H_1 is accepted, which means that the partnership has a significant effect on farmers’ income.
Anella Retna Kumala Sari, Dian Rahmawati, Samrin Samrin
Jurnal Penelitian Pertanian Tanaman Pangan, Volume 4, pp 145-151; https://doi.org/10.21082/jpptp.v4n3.2020.p145-151

Abstract:
Obtaining an optimum high yield of rice is confronted by pests that disrupt the productivity. Pest control by applying chemical pesticide is dangerous for the natural enemies therefore, it is necessary to introduce an integrated pest management, based on the natural enemies conservation in the field. Research was conducted in Wawotobi, Konawe Regency, Southeast Sulawesi from Februari to Juni 2019, aimed to understand the diversity of pests and natural enemies in rice crop, particularly arthropods group. The information is useful as a resource base in the implementation of an integrated pest management on rice agroecosystem. Pest observation was done by catching the insects using sweep net and were directly counted at the location. Diversity index of pest was analyzed using Shannor-Weinner equation and insect dominance using Simpson Index of Dominance equation. The utilization of improved rice varieties greatly affected the population of pests and natural enemies. Total of 7 species of pest arthropods and 6 species of natural enemy arthropods were identified at the experimental location. Therefore, the population of pests and natural enemy arthropods were considered at balance. The most dominance pest arthropods was brown planthopper, particularly on Tarabas variety and spider was the most dominant natural enemy.
Muhlis Ardiansyah, Widyo Pura Purba, Anang Kurnia
Jurnal Penelitian Pertanian Tanaman Pangan, Volume 4, pp 135-144; https://doi.org/10.21082/jpptp.v4n3.2020.p135-144

Abstract:
Data produktivitas padi dibutuhkan untuk mendapatkan informasi tentang capaian target pembangunan berkelanjutan (Sustainable Development Goals - SDGs). Data produktivitas padi diperoleh dari hasil survei ubinan rutin Badan Pusat Statistik (BPS). Permasalahan pada pelaksanaan survei adalah pengukuran bobot gabah pada petak lahan terpilih tidak selalu berhasil, terutama di wilayah dengan aksesibilitas yang sulit. Hal ini menyebabkan beberapa data hilang. Salah satu solusi untuk mengatasi masalah tersebut adalah menduga bobot gabah per plot ubinan berdasarkan peubah yang mudah diperoleh. Penelitian ini dilakukan di Kalimantan Tengah pada tahun 2019, bertujuan untuk mengevaluasi kinerja model Quantile Regression Forest (QRF) dalam menduga berat gabah atau produktivitas padi per 2,5 x 2,5 m2. Metode yang diperbandingkan adalah Model Linier (LM), QRF, Geo-QRF, dan Geo-QRF reparameterisasi. Hasil penelitian menunjukkan peubah varietas, pupuk, dan titik koordinat dapat digunakan untuk menduga bobot gabah pada survei ubinan di Kalimatan Tengah. Model Geo-QRF dengan reparameterisasi peubah pupuk terbukti mampu menduga bobot gabah lebih baik dibanding model linier karena menurunkan RMSE (Root Mean Square Error) dan meningkatkan nilai korelasi antara data aktual dengan data dugaan. Hasil simulasi menunjukkan apabila data hilang tersebar secara acak (data hilang tipe III) maka angka rata-rata gabah yang dihasilkan mirip dengan rata-rata bobot gabah pada tingkat respon survei 100%. Berbeda dengan jenis data hilang tipe I dan II, rata-rata bobot gabah yang dihasilkan dapat menjadi uderestimate atau overestimate jika tidak ditangani. Prediksi bobot gabah menggunakan model Geo-QRF dengan reparameterisasi dapat memperbaiki masalah data hilang dengan hasil yang lebih mirip dengan rata-rata bobot gabah pada tingkat respon 100%. BPS diharapkan mempertimbangkan dan mengkaji solusi yang diajukan dalam penelitian ini.
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