Silicate fertilization in no-tillage rice farming for mitigation of methane emission and increasing rice productivity

Agricultural practices mostly influence methane (CH₄) emissions from rice field, which must be controlled for maintaining the ecosystem balance. No-tillage farming with chemical amendments having electron acceptors could be an effective mitigation strategy in CH₄ emissions from irrigated rice (Oryza sativa L.) field. An experiment was conducted in Korean paddy field under tillage and no-tillage farming practices with silicate iron slag amendments (1-4Mgha⁻¹) for suppressing CH₄ emissions and maintaining rice productivity. It was found that CH₄ emissions from the no-tillage rice field significantly decreased as compared to that of tilled field, irrespective of silicate amendments. The total seasonal CH₄ flux from the control tillage and control no-tillage plots were recorded 38.1 and 27.9gm⁻², respectively, which were decreased by 20% and…