Abstract─Hulu Sungai Tengah Regency, especially Haruyan has the potential to be developed as an agricultural area. Assessment of agricultural commodities is needed to determine the priorities of agriculture that will be developed in this region. The purpose of this study is to identify the potential of agricultural commodities in Haruyan, Hulu Sungai Tengah. The sample of the research was the land unit and village unit. The land unit is used to determine the land suitability for the commodity. Meanwhile, the village unit is used to collect the social economic data. Secondary data is collected from the government agency to determine the agriculture commodity. Location Quotient (LQ), shift share, and Focus Discussion Group (FGD) is used to analyze the agriculture commodity in Haruyan. The results showed that rice has S1 class (Very Suitable), corn has S2 class (Suitable), while commodity of onion, chili, and banana have an S3 class (Marginal Suitable). Based on LQ, corn and red pepper have base sector while the other sectors have non-base sector. The shift-share value is negative (-). The FGD results indicate that commodities to be developed by the community are rice, corn, and onion. This sector will be developed because it has the potential to be developed in Haruyan.
One method of controlling disease that is environmentally friendly is the use of plant-based pesticides also known as botanical pesticides. The use of botanical pesticides has proven to be effective in controlling several species of pests and plant diseases, because they contains active secondary metabolite compounds. These compounds affect pathogenic microorganisms, so it is feared will also affect antagonistic microorganisms. This research will find out the impact of the application of several botanical pesticides on shallots to microbial biodiversity. The study was conducted in Peat-lands, at South Kalimantan. Microbial identification was carried out at the Phytopathology Laboratory and the Laboratory of Biological Control of the Department of Pests and Plant Diseases, Lambung Mangkurat University, Banjarbaru. The results showed that the application of plant-based pesticides from Kepayang fruit extract and Galam leaf extract had an influence in decreasing the population of microorganisms, respectively by 80.44% and 75.26%. Chirinyuh were increased the population by 36.60%, as well as the control treatment, the population of microorganisms increased by 17.77%. Meanwhile the application of synthetic pesticide Dhitane M-45 reduced the population of microorganisms by 95.73%. Types of microbes found in the soil and onion rhizosphere are Pseudomonas flourescens, Bacillus sp., Fusarium sp., Aspergillus sp., Curvularia sp., Scopulariopsis sp., Stachybotrys bisbyi, and Penicillium sp.
Telah dilakukan penelitian pengujian dua belas jenis Trichoderma asal lahan rawa pasang surut untuk menghambat Fusarium oxysporum yang penyebabkan penyakit moler pada bawang merah Allium ascalonicum L. Penelitian bertujuan ingin mengetahui kemampuan dari 12 jenis Trichoderma sp, dalam menghambat pertumbuhan Fusarium oxysporum secara in vitro. Pengujian ini terdiri atas uji antagonisme dengan mode kultur ganda dan uji Trichoderma spp. terhadap perkembangan Fusarium oxysporum. Percobaan dalam Rancangan Acak Lengkap (RAL) dari tiga ulangan. Dari hasil penelitian ini meperlihatkan bahwa Trichoderma sp. mampu menekan atau menghambat pertumbuhan Fusarium oxysporum secara in vitro. Isolat Trichoderma sp. kemampuan penghambatannya paling tinggi adalah sebesar 70,4 % isolat Trichoderma spp. asal Kaladan, Kabupaten Tapin, Kalimantan Selatan. dan penghambatannya yang paling rendah 37,79 % isolat Trichoderma sp. yang berasal dari Tumbang Nusa, Kalimantan Tengah.
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