Nutrient Management Under Good Agricultural Practices for Sustainable Cassava Production in Northeastern Thailand

Derrick Keith Thompson, Ornprapa Thepsilvisut (), Phanawan Imorachorn, Saowakol Boonkaen, Preuk Chutimanukul, Suthasinee Somyong, Wuttichai Mhuantong and Hiroshi Ehara
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Derrick Keith Thompson: Department of Agricultural Technology, Faculty of Science and Technology, Thammasat University Rangsit Center, Klong Luang 12120, Thailand
Ornprapa Thepsilvisut: Department of Agricultural Technology, Faculty of Science and Technology, Thammasat University Rangsit Center, Klong Luang 12120, Thailand
Phanawan Imorachorn: Department of Agricultural Technology, Faculty of Science and Technology, Thammasat University Rangsit Center, Klong Luang 12120, Thailand
Saowakol Boonkaen: Department of Agricultural Technology, Faculty of Science and Technology, Thammasat University Rangsit Center, Klong Luang 12120, Thailand
Preuk Chutimanukul: Department of Agricultural Technology, Faculty of Science and Technology, Thammasat University Rangsit Center, Klong Luang 12120, Thailand
Suthasinee Somyong: National Omics Center, National Center for Genetic Engineering and Biotechnology (BIOTEC), National Science and Technology Development Agency (NSTDA), Klong Luang 12120, Thailand
Wuttichai Mhuantong: Enzyme Technology Research Team, Biorefinery Technology and Bioproduct Research Group, National Center for Genetic Engineering and Biotechnology (BIOTEC), Klong Luang 12120, Thailand
Hiroshi Ehara: International Center for Research and Education in Agriculture, Graduate School of Bioagricultural Sciences, Nagoya University, Nagoya 464-8601, Japan

Resources, 2025, vol. 14, issue 3, 1-26

Abstract: Emphasis on sustainable cassava production is increasing, with aims to increase the net income of cassava farmers in an ecologically friendly way. This study examined the optimization of soil fertilizer management at two research locations (Nampong and Seungsang) in northeastern Thailand. The experiment was conducted as a randomized complete block design with five replications. Eight different fertilizer management protocols consisted of (1) no fertilizer application (control), (2) the recommended dosage of chemical fertilizer (RDCF), (3) 3.12 t ha −1 of chicken manure (CM), (4) 937.5 L ha −1 of swine manure extract (SME), (5) CM + SME, (6) ½ RDCF + ½ CM, (7) ½ RDCF + ½ SME, and (8) CM + PGPR (stake soaking with PGPR solution). At the Nampong site, the application of CM + PGPR has the most potential for increasing the cassava yield in terms of the fresh tuber yield when compared with no fertilizer and RDCF applications. At the Seungsang site, the application of CM gave the high fresh tuber yield, without significant differences from RDCF applications. Furthermore, compared to the RDCF treatment, both soil fertilizer management protocols produced positive marginal rate of return values, showing clear potential for contributing to sustainable cassava production.

Keywords: cassava; sustainable production; marginal rate of return; microbiome; fresh storage root yield (search for similar items in EconPapers)
JEL-codes: Q1 Q2 Q3 Q4 Q5 (search for similar items in EconPapers)
Date: 2025
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