Research and Development to Increase Efficiency Production of Economic Vegetable Base on Organic Thailand Standard in Ban Khlong Mai Dang, Suratthani

Abstract

The objective were study to increase efficiency production of economic vegetable base on organic Thailand standard , test and develop safety vegetable production technologies in the production conditions of the Ban Khlong Mai Dang , Chaiya district, Suratthani province. The experiment was conducted during season 2022-2023. How the 2 studies were conducted in 2 experiments. The first experiment were study in farmer’s fields by Technology Verification Experiment (TVE) in RCBD with 2 replications. The factors consist of 2 levels i.e. the farmer method and DOA recommend method by using of bio-fertilizer technology (Phosphate Solubilizing Microorganism (PSM), Arbuscular Mycorrhiza (AM) and Azolla microphylla) of DOA were study in vegetable crops, namely, chinese kale, chinese cabbage and green pakchoy. The results found that the biofertilizer technology of DOA showed that in chinese kale, chinese cabbage and green pakchoy .The DOA recommend method gave better than the farmer. The result showed that yield of vegetable production with DOA recommend method was high yield and net income more than farmer method, while cost of production with recommend method was decrease and benefit cost return; BCR of DOA recommend method was 2.94 and Farmer method was 1.70. At the same time, surveying insect and pathology in the farmers field found that the key pest to made damage and loss of yield in the farmer’s thus leading to the second experiment were tested biological control integrated pest management of DOA method in chinese kale, chinese cabbage and green pakchoy production for efficacy to control pest in the farmer field. The result revealed that biocontrol by used Bacillus Subtilis 20W1 of DOA and Trichoderma harzianum had to inhibit Alternaria brassicicola , A. brassicae and Phytophthora spp. Are an economically important diseases of this vegetable and gave to highest potential for disease control. The Bacillus Subtilis 20W1 and could available to control Alternaria leaf spot found that Disease Severity Index; DSI of DOA technology was 4.33-8%. The use of biology including Bacillus thuringensis (Bt), Steinernema carpocapsae, metharhizium anisopliae, and Beauveria bassiana of DOA found that insect Severity Index; ISI of DOA technology was 14-18.33%. The results showed that the reduction of plant pathology and insect damage in the farmer's satisfaction. The DOA technology could available to control key pest. Therefore, biological agents control of DOA could provide new options for integrated pest management strategies against plant diseases and key pests.