Ministry of Agriculture’s study on carbon sequestration finds green manure boosts rice productivity
Sources of informationJanuary 26, 2026 | The Liberty Times (Chinese) |
Taiwan's Ministry of Agriculture (MOA), through the Taiwan Seed Improvement and Propagation Station, has completed a 3-year study on farmland carbon sequestration in the Dajia (大甲) rice production area of Taichung City. The research, conducted from 2023 to 2025, integrated green manure cover crops, sun hemp and rapeseed, into rice rotation systems and established a systematic field monitoring database. Results showed that first-season rice yields in 2025 significantly exceeded those of 2024, with green manure-treated plots consistently outperforming untreated areas. In the 0-30 cm soil layer, organic carbon storage under green manure treatments exhibited a cumulative accumulation trend, with rapeseed and sun hemp zones showing greater carbon increases than rice-only plots. The station also monitored methane (CH4) and nitrous oxide (N2O) emissions linked to nitrogen cycling under different green manure regimes. The Ministry plans to develop standardized assessment parameters, guidance manuals, and promotion plans to scale sequestration-enhanced farming practices across Taiwan.
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