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jurnal Ilmu Pertanian (Agricultural Science)
Published by Universitas Gadjah Mada
ISSN : 01264214     EISSN : 25277162     DOI : https://doi.org/10.22146/ipas
Core Subject : Agriculture,
Agriculture, Biological Sciences & Forestry
Ilmu Pertanian (Agricultural Science) with registered number ISSN 0126-4214 (print) ISSN 2527-7162 (online) is a scientific open access journal published by Faculty of Agriculture, Universitas Gadjah Mada jointly with PISPI (Perhimpunan Sarjana Pertanian Indonesia). Ilmu Pertanian (Agricultural Science) provides a forum for the publication of scientific articles in the scope of agricultural sciences with priority on science and plant technology (plantation, horticulture, and forestry), including aspects of postharvest and socioeconomic. Ilmu Pertanian (Agricultural Science) is published three times annually, April, August, and December.
Arjuna Subject : Ilmu Pertanian dan Biologi (Semua) - Ilmu Pertanian dan Biologi (Lain-Lain)
Articles 7 Documents
 1 
Search results for , issue "Vol 1, No 1 (2016): April" : 7 Documents clear
Contribution of Agricultural Sector Towards Regional Income Inequality of Sumatera Economic Corridor Dany Juhandi; Irham Irham; Jamhari Jamhari
Jurnal Ilmu Pertanian Vol 1, No 1 (2016): April
Publisher : Faculty of Agriculture, Universitas Gadjah Mada jointly with PISPI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/ipas.9256

Abstract

Finding of previous studies shows that Sumatera Economic Corridor is categorized as the highest income inequality. The Indonesian goverment enacts MP3EI (Master Plan for the Acceleration and Expansion of Indonesia Economic Development) program to promote equitable development where each economic corridor owns strategic economic sector. The objective of this study is to analyze the contribution of agricultural sector on income inequality in Sumatera Economic Corridor (SEC) using a weighted coefficient of variation. We use secondary time series data of Gross Regional Domestic Product (GRDP), number of population, and per capita income of a time range between 2002 and 2013. Data analysis shows that agricultural sector has the least contribution on income inequality. Consequently, goverment policy should be focusing on the development of agricultural sector in Sumatera Economic Corridor
How to Mitigate The Production Risks on Coastal Red Chilli Farming in Kulon Progo Regency Azmi Basyarahil; Irham Irham; Lestari Rahayu Waluyati
Jurnal Ilmu Pertanian Vol 1, No 1 (2016): April
Publisher : Faculty of Agriculture, Universitas Gadjah Mada jointly with PISPI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/ipas.9295

Abstract

The southern part of the Special Province of Yogyakarta consists of a coastline spanning over 113 km, under the administrations of Bantul, Gunung Kidul and Kulon Progo regencies, that can become an asset and resource of an important economy. Cabe Merah (red chilli) is one of the commodities that show high numbers of productivity in Kulon Progo Regency. Activities of red chilli farming on the coastal land of this regency have been growing, especially since the establishment of commodity auction market to help farmers sell their harvests. The study was conducted to (1) find out the size of production in red chilli agribusiness on coastal land, (2) to analyze the risk levels of production faced by the farmers, and (3) how to mitigate the production risks on coastal red chilli farming. There were 40 participating farmers from Banaran Village, Galur Sub-district, Kulon Progo Regency. The location was intentionally chosen by using  multistage area sampling method. The data used were collected from the production and income of three growing seasons. Data analyses were performed using production risk and The House of Risk methods. Based on the variance coefficient, the production risks level was at 0,03 with the production lower limit of 9.596 Kg/Ha, which showed a low level of risk. The various risk mitigation strategies have been performed by the farmers to lessen the risks that can causes losses in the process of coastal red chilli productions.
Profitability and Farmers Conservation Efforts on Sustainable Potato Farming in Wonosobo Regency Liana Fatma Leslie Pratiwi; Suhatmini Hardyastuti; Lestari Rahayu Waluyati
Jurnal Ilmu Pertanian Vol 1, No 1 (2016): April
Publisher : Faculty of Agriculture, Universitas Gadjah Mada jointly with PISPI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/ipas.9912

Abstract

It takes into account in potato farming sustainability, since it was recognised as a holticultural commodity for farmers’ subsistence in Wonosobo Regency. For the reason that farming land was being degraded by errossion, the potato productivity apparently continued to decline. Potato farming sustainability can be deliberated from economic (profitability) and environmental (conservation efforts) points of view in order to remain profitable in a long term sustainable environment. This study is aimed to (1) to analyse the profitability of potato farming; (2) to analyse farmers’ effort on soil conservation and factors which affected sustainability of potato farming. The method used in this study was basic descriptive analysis. The study site was in Kejajar District, Wonosobo Regency, subsequently 50 random farmers as respondences was obtained. Gross Margin, Return on Invested Capital, and Operating Ratio were used to measure the profitability of potato farming. Conservation Activity Index (CAI) was used to measure farmers’ effort on soil conservation, while paired liner regression model with Ordinary Least Square (OLS) method was used to understand the factors which affected the conservation efforts of test sites. The study results revealed that the potato farming was profitable. Farmers conservation efforts mostly was in average category (74%), and only view in high category (16%) and low category (10%). Factors affected the farmers conservation efforts i.e. land area, potato products, potato price, the off-farm income, number of family members, farmers ages, and village dummy.
Competitive and Comparative Advantages Analysis of Organic Rice Farming in Karanganyar Regency, Central Java Province Anita Suharyati; Slamet Hartono; Lestari Rahayu Waluyati
Jurnal Ilmu Pertanian Vol 1, No 1 (2016): April
Publisher : Faculty of Agriculture, Universitas Gadjah Mada jointly with PISPI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/ipas.10225

Abstract

In era of the free trade which increasingly competitive, it is important to understandthe competitiveness of foodstuff commodity by every country. Public awareness of health hazards and adverse environmental impacts, as well as the trend of consumers choosing safe foodstuffs, lead to a shift to the cultivation of organic systems. This paper uses Policy Analysis Matrix (PAM) analysis to determine whether rice farming system has a comparative and competitive advantages when produced with organic farming practices. The purposes of this paper are to (1) Analyse the financial and economic advantages of organic rice farming in Karanganyar. (2) Analyse competitiveness of organic rice in Karanganyar Regency viewed from competitive advantage and comparative advantage. Based on the data analysis,results show that the organic rice farming in Karanganyar Regency has a competitive advantage and comparative advantage, indicated by PCR and DRC value that is less than one. The competitive advantage of organic rice in Karanganyar Regency is greater than the comparative advantage. PCR coefficient amount of 0.74 and DRC coefficient amount of 0.56. Thus organic rice farming in Karanganyar Regency is worth developing and has good competitiveness in domestic market as well as international market.
Proline Activity and Growth of Oil Palm affected by Aluminium Toxicity and Silica as Ameliorant Annisa Khoiriyah; Eka Tarwaca Susila Putra; Prapto Yudono
Jurnal Ilmu Pertanian Vol 1, No 1 (2016): April
Publisher : Faculty of Agriculture, Universitas Gadjah Mada jointly with PISPI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/ipas.10786

Abstract

The research aims to investigate the effects of silica (Si) as an ameliorant on the proline compound concentration and the growth response of oil palm exposed to aluminum toxicity. The research was arranged in a complete randomized block design with 8 blocks as replications. The first factor was Al toxicity which consisted of two levels as without and with Al toxicity. Al toxicity treatment was applied by giving 300 ppm of Al concentrate along with watering activity regularly. The second factor was the application of silica which consisted of four levels as 0, 32, 64 g/plant. Proline and growth activities of leaf area, plant height, number of leaves, and dry weight were observed in the research. The data subjected to analysis of variance (ANOVA) at 5% test level. If the result of ANOVA showed significant differences among treatments, then the data would have been analyzed by Duncan’s Multiple Range Test (DMRT) at 5% test level. The results of the research provide information that Al toxicity increases proline compound in the plant tissues and decreases leaf area, plant height, number of leaves, and dry weight of Oil Palm. Applying Si at the level of 64 g/plant could increase proline concentrate and dry weight of oil palm exposed to A1 toxicity. Proline compound in the plant tissues did not have any correlation with the growth of oil palm. Thus, this case indicated that proline was a product and not a plant tolerant mechanism of Al toxicity.
Root Morphology of Eight Hybrid Oil Palms Under Iron (Fe) Toxicity Aprilia Ike Nurmalasari; Eka Tarwaca Susila Putra; Prapto Yudono
Jurnal Ilmu Pertanian Vol 1, No 1 (2016): April
Publisher : Faculty of Agriculture, Universitas Gadjah Mada jointly with PISPI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/ipas.11254

Abstract

The research aims to study the change of morphology root characters of eight hybrid oil palms under iron toxicity (Fe). Field experiment done in arranged in a Randomized Complete Block Design (RCBD) two factors and three blocks as replications. The first factor was Fe concentration. It consists of two levels which are concentration 0µ.g-1 and concentration 600 µg.g-1 Fe. The second factor is the hybrid of oil palms which consists of eight hybrid oil palms as Yangambi, Avros, Langkat, PPKS 239, Simalungun, PPKS 718, PPKS 540 and Dumpy. Fe was applied by pouring FeSO4 solvent for 600 µg.g-1 500 ml.-1plant.-1day-1 on two months of plants after transplanting in the main nursery. Data were collected on root morphology and plant dry weight The data were analysis of variance (ANOVA) at 5% significanly, followed by Duncan's multiple range test (DMRT). The relationships by among variables were determined by correlation analysis. The results showed that Fe concentration 600 µg.g-1 inhibits relatively root growth rate, narrows surface area, reduces the diameter, and shrinks root volume of all hybrid oil palms tested. The slowing relatively root growth rate, narrowing of root surface area and root diameter also root volume shrinkage due to Fe stress. It was also shown that the dry weight of plants was inhibit by existing of Fe toxicity.
Survey and Detection of Pectobacterium atrosepticum in Major Potato-Growing Areas in Central Java Province, Indonesia Ismiyatuningsih Ismiyatuningsih; Tri Joko; Sedyo Hartono
Jurnal Ilmu Pertanian Vol 1, No 1 (2016): April
Publisher : Faculty of Agriculture, Universitas Gadjah Mada jointly with PISPI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/ipas.11654

Abstract

Potato (Solanum tuberosum) is a seasonal shrub-tuber crop originated from sub-tropical area. Soft-rot is one of the most important diseases of potato. It can be caused by Pectobactorium atrosepticum, a pathogen within a status of quarantine plant pest A1 type I in Indonesia. The objective of this study was to know the incidence of potato soft rot disease and to detect P. atrosepticum in major potato-growing areas in Central Java Province by applying the serology method using DAS-ELISA technique. Survey of soft rot disease was carried out in some regencies in Central Java Province, i.e. Magelang, Banjarnegara, Wonosobo and Karanganyar. The field survey of potato plant in all the regencies indicated symptoms of stem rot which was black in color (blackleg) and foul-smelling, with disease incidence of about 10–90%. The laboratory testing showed that by applying DAS-ELISA method, P. atrosepticum was detected in samples collected from Pandean and Bagongan villages, district of Ngablak,Regency of Magelang, Central Java Province.

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