International Journal of Agriculture System

Journal Information
ISSN / EISSN : 2337-9782 / 2580-6815
Published by: Hasanuddin University, Faculty of Law (10.20956)
Total articles ≅ 51
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Dwia Aries Tina Pulubuhu, Andi Alimuddin Unde, Suwandi Sumartias, Sudarmo Sudarmo, Seniwati Seniwati
International Journal of Agriculture System, Volume 8, pp 57-63; https://doi.org/10.20956/ijas.v8i1.2337

Abstract:
The COVID-19 pandemic in Indonesia began to be confirmed in early February 2020, it affects many various economic sectors, including agriculture. The COVID-19 created challenges for socio-economic issues. This short note focuses on the impact of COVID-19 outbreak on the agricultural sector. The COVID-19 outbreak had a wide-ranging impact, so that agricultural commodities continued to decline. The government's call to not leave the house resulted in many farmers not doing their activities so that it has an impact on declining farmers' income. The field officers also could not optimally carry out their work as a result the development of farming was not optimal. Various efforts have been made by the government to support the agricultural sector such as building e-marketing and training in processing yields for farmers.
, Mieke Rochimi Setiawati, Priyanka Asmiran, Betty Natalie Fitriatin
International Journal of Agriculture System, Volume 8, pp 1-10; https://doi.org/10.20956/ijas.v8i1.2283

Abstract:
The spore-forming Bacillus and cysts forming Azotobacter are Plant Growth Promoting Rhizobacteria which has been used as biofertilizer in sustainable agriculture since they tolerant to dried soil. Drought resistant microbes will be useful to coat urea in order to reduce the lost of nitrogen. The objectives of this preliminary study were to study the effect of molasse based liquid media on the population of Bacillus spore and Azotobacter vegetative cell and to determine the composition of four bacterial species in liquid formula. In the first experiment The Bacillus subtilis, B. megaterium, A. chroococcum and A. vinelandii were grown separately in 1% cane molasses enriched with 0.1% NH4Cl. As control treatment, The Bacillus and Azotobacter were grown in Nutrient Broth and Ashby’s mannitol broth respectively. In the second experiment, different composition of said Bacillus and Azotobacter were grown in molasses based liquid media prior to count the spore and vegetative cell. The results showed that molasses-based media supported bacterial growth and initial ratio 1:1:1:1 of liquid inoculant was effective to increase bacterial growth. This experiment suggested that the use of organic based media was useful practice of liquid biofertilizer formulation for granule urea coating.
Siti Halimah Larekeng, Yusniar Yusniar, Muh Restu, Rismawati Rismawati, Yuni Fitri Cahyaningsih, Mirza Arsiaty Arsyad, Arif Nirsatmanto
International Journal of Agriculture System, Volume 8, pp 34-43; https://doi.org/10.20956/ijas.v8i1.2213

Abstract:
Duabanga moluccana Blume, locally known as Rajumas, is a tree species that suitable for building materials, pulp, and plywood. The information about genetic diversity is required for the conserving of this species. Here, we elucidated the genetic diversity of D. moluccana from two provenances in West Nusa Tenggara, Indonesia. Four microsatellite markers successfully amplified 12 randomly selected samples and produced polymorphic DNA bands. Those primers were DMAG10, DMAG09, DMACAG01 and DMTCAC11. High genetic diversity was detected in the populations with 0.54 of mean expected heterozygosity (He). The genetic variation among individuals was 100%, whereas there were no genetic variations among populations and within individuals
Rahmadi Tambaru, Muh. Farid Samawi, Khairul Amri
International Journal of Agriculture System, Volume 8, pp 11-16; https://doi.org/10.20956/ijas.v8i1.2272

Abstract:
The productivity of phytoplankton found best in coastal waters is on a critical aquatic environmental condition for the life of phytoplankton (incubation time : 10.00-14.00). At that incubation time, the sun reached the apex of illumination (12.00). Theoretically, the best productivity is unlikely to happen because the activity of phytoplankton is not perfect. To answer that doubt, the research deals with the strategy of life phytoplankton on critical conditions in coastal waters. To achieve the desired results, multivariate analysis is used Correspondent analysis (CA) and Principal Components Analysis (PCA). The results showed that based on the analysis of Factorial Koresponde (CA), there were two grouping of phytoplankton abundance. Group I showed that the grouping of phytoplankton abundance of occurred at A depth of 10 m at the sampling time A (10.00 : normal conditions). Group II occurs at a depth of 5 and 15 m at sampling time B (14.00: critical condition). Furthermore, the shift in grouping phytoplankton occurs at the sampling time A at a depth of 10 m into the sampling time B in 5 m depth, not at at a depth of 0 m. This is due to the very strong sunlight intensity that can lead to death in the genera of phytoplankton that exist. It turns out that the strategy and the dynamics of phytoplankton abundance at critical time is not doing the grouping at the surface depth (0 m), but at a deeper depth (5 m) in order to keep the activity well done.
Bahtiar Bahtiar, B Zanuddin, M Azrai
International Journal of Agriculture System, Volume 8, pp 44-56; https://doi.org/10.20956/ijas.v8i1.2327

Abstract:
Corn seed breeders are indispensable in the supply of superior hybrid corn seeds. Its ability to produce seeds is evaluated for their superiority compared to the production of corn grain yield. A study was conducted in Jatirogo District, Tuban Regency, East Java province in July to December 2019. Involving farmers cooperator implementing hybrid corn seed production in the area of 96 ha and non cooperator farmers who produce the corn grain yield in the same location. We observed the variables: cost of production, yield and farmers income. Data and information were analyzed by Benefit Cost Ratio (B/C) and Marginal Benefit Cost Ratio (MBCR). The results showed that farmers who produced hybrid corn seeds of Nasa-29 variety (cooperators) were able to produce 4.6 t/ha of wet cobs with an income of IDR. 19,470,000/ha, while farmers who produced grain corn of 7.9 t/ha with an income of IDR. 15,943,000/ha. MBCR analysis showed that, the switching is able to added the farmer income Rp.4,100 for every use cost Rp.1,000 as long as the seed procurement policy remains unchanged and related institutions continue to provide support.
Nurhapsa Nurhapsa, , , Betrixia Barbara
International Journal of Agriculture System, Volume 8, pp 26-33; https://doi.org/10.20956/ijas.v8i1.2291

Abstract:
The agricultural sector is one of the important sectors for the Indonesian economy. Coffee is one of the commodities produced from the plantation sub-sector included in the agricultural sector which also contributes greatly to the Indonesia economy, especially as a source of foreign exchange, employment and income sources as well as other economic actors. This study aims to determine whether the factors of land area production, number of productive trees, farming costs and labour used by coffee farmers are elastic or inelastic to coffee production. Samples were taken as many as 400 coffee farmers spread in four districts namely North Toraja Regency, Enrekang Regency, Sinjai Regency and Bantaeng Regency, South Sulawesi, Indonesia. Data collected in the form of primary data and secondary data. The analysis used the Cobb-Douglass production function. The results show that the use of production factors; land area, number of productive trees, farming costs and labor are inelastic to coffee production, the scale of farming follows the rules of increasing return to scale. Therefore, it is expected that the support of local government (related institutions) to assist coffee farmers in providing superior seeds to increase coffee production, farmers incomes and reduce land conversion.
Rustam Abdul Rauf, Dian Safitri, Christoporus Christoporus, Effendy Effendy, Muhardi Muhardi
International Journal of Agriculture System, Volume 8, pp 17-25; https://doi.org/10.20956/ijas.v8i1.2330

Abstract:
Shifting patterns of community consumption from vegetable protein to animal protein encouraged high demand for animal food, so it was needed an estimate of the supply and demand for its products. Therefore, this research aimed to analyze the short-term forecasting model of the production and price of beef and broiler meat in Central Sulawesi. The research used time series data. Production data and price of beef and broiler meat were taken from 2015 - 2019. The analytical tool used was the ARIMA Box-Janskin forecasting method. The results showed a short-term forecasting model for beef production (1,0,0) and broiler meat (3,2,1). Short-term forecasting model for beef price (1,0,1) and broiler meat (1,1,1). This finding could be used as a reference in making policies related to the production and price of beef and broilers meat in order to meet the needs of the community, especially in Central Sulawesi.
International Journal of Agriculture System, Volume 7, pp 148-153; https://doi.org/10.20956/ijas.v7i2.579

Abstract:
Prices of agricultural products and poverty relationship are the two types of standing issue to solve. This paper tries to argue that price of agricultural products (hereafter, agricultural price) and poverty are strongly related. We employed Correlation (intermediate step) and Path (final step) in the analysis procedure. The results show that, first, the association degree between agricultural input (note as well, that price is crucial factor to get input) with poverty approaching 70%, indicating that agricultural input is good-fit in explaining poverty. Second, the higher the frequency of getting agricultural extension, and price information for various inputs (and output) in agriculture, the higher the crop productions (agricultural sector, in broad sense) will be gained. This indicates these two variables (inputs-outputs prices) can also be expected to be important instruments in increasing smallholders’ income and in turn help them living above poverty line. Farmers household income is strongly affected by prevailing market price. Agricultural price is functioning as intermediate part of income calculation. It is clear that price of agricultural products has a strong linkage with rural poverty alleviation in the country.
, Andi Nuddin, Retno Prayudyaningsih, Syatrawati Syatrawati, Henny Setiawaty
International Journal of Agriculture System, Volume 7, pp 116-126; https://doi.org/10.20956/ijas.v7i2.1918

Abstract:
Mycorrhizal fungi that are capable of adapting and resistant to heavy metal contaminated environments have received special attention for phytorhizoremediation researchers. The aim of the study was to explore native mycorrhizal fungi from areas contaminated with heavy metals to be used as starter biological agents in the phytorhizoremediation program. This research was carried out in two phases, i.e. rhizosphere sampling of Polypodium glycyrrhiza, Sumasang sp (local name) and Spathoglottis plicata at coordinates 2O31'57,6"S and 121O22'50,7"E. Rhizosphere of Chromolaena odorata, Melastama affine and Nephrolepis exaltata at coordinates 2O31'53,5"S and 121O22'35,4"E, Sorowako, Indonesia; While the other phase is isolating and identifying mycorrhizal spores in the Microbiology Laboratory, Research and Development Center for Environment and Forestry in Makassar, Indonesia. The results showed that be discovered three genus of mycorrhizal fungi were able to adapt and resistant in areas contaminated with Cr, Co, and Cu, i.e. 44.44% to 75.86% Acaulospora sp; 9.52% to 44.44% Gigaspora sp, and 3.38% to 19.05% Glomus sp. which could be used as source of inoculum in Phyto-rhizoremediation program. We recommend using native mycorrhizal fungi combined with endemic plant of location to rehabilitation heavy metal contaminated soils.
, Abubakar Idhan, Amanda Patappari, Noerfitryani Noerfitryani, Rahmi Rahmi, Iradhatullah Rahim
International Journal of Agriculture System, Volume 7, pp 89-99; https://doi.org/10.20956/ijas.v7i2.2031

Abstract:
Local rice is rice that has been cultivated for generations by the community and commonly cultivated without using chemical inputs. Endophytic fungi are fungi that live in the plant tissue and does not cause disease symptoms in the host plants. This study aimed to molecular identifying isolates of MDTA and MDTB endophytic fungi which have been isolated from the local Pulu Mandoti rice plant tissue and growth test on the four types of culture media those were synthetic PDA, natural PDA, MPA, and MEA. The fungi DNA isolation using DNesay Kit. DNA sequencing analysis using the mega BLAST program showed that the MDTB fungus has similarities to Podoscypha bolleana strain 32034 no accession JQ675334 and Podoscypha bolleana strain 32032 no accession JQ675332, whereas the MDTA fungus has similarities to Coprinopsis cinerea A2S3-5 isolate and Coprinopsis cinerea strain CNRMA / F 07-32. The best culture media and sporulation of endophytic fungi is MPA media. This research is the first study to molecular identifying with endophytic fungi from local rice and viability test on the four types of culture media. The results of this study contribute to the diversity of local rice endophytic fungi in Sulawesi.
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