Mitigating Methane Emission from the Rice Ecosystem through Organic Amendments

Tamil Nadu in particular is a key rice-producing region peninsular India. Hydrochemistry, viz., redox potential (Rh), soil temperature and dissolved oxygen (DO), of rice soils can determine the production greenhouse gas methane (CH4). In recent decades, cultivation crops organically became viable option for mitigating climate change. Hence, this study aimed to investigate effects different organic amendments on CH4 emission, Rh, DO, water (T) relation yield paddy. The treatments composed control, blue-green algae (BGA), Azolla, farm yard manure (FYM), green leaf (GLM), + FYM GLM, BGA Azolla vermicompost decomposed livestock manure. With addition highest reduction emission was 37.9% over control followed by BGA. However, same treatment had 50% 43% increase Rh respectively, control. Established Pearson correlation analyses showed that positive with (r = 0.880 **) T 0.888 negative correlations −0.987 DO −0.963 **). higher grain 26.5% associated GLM application. Our findings there are significant differences emissions between hydro-parameters may be more important controlling factor than temperature. conclusion has been drawn based valid research bio-fertilization using an efficient feasible approach combat change, as it assists reducing while simultaneously boosting crop fixing nitrogen into studied agro-climatic zone.