Integrated fertilizer management for yield improvement and cost cutting of cassava production in Kalasin Province
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Abstract
The purpose of this study was to evaluate the effects of integrated fertilizer management on increasing cassava productivity and reducing production costs. This experiment was participatory action research in cassava plots of 10 farmers in Muang and Sahatsakhan districts, Kalasin Province, Thailand during 2021-2023. There were 2 treatments: 1) the test method was an application of PGPR-3 bio-fertilizer, 500 kg/rai of organic fertilizers (chicken manure and husk) combined with 50 % chemical fertilizer according to soil analysis; and 2) the farmers’ conventional method. The results showed that the cassava growth, fresh cassava tuber yield, and benefit-cost ratio (BCR) in the test method were significantly higher than in the farmers’ conventional method (p < 0.01). The test method could increase productivity by 42 %, reduce production costs by 27 %, increase net income by 80 %, and improve the BCR by 27 % compared with the farmers’ conventional method. Therefore, the integrated fertilizer management technology is another method to increase yields, reduce costs, and increase income for cassava farmers in Kalasin Province.
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References
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