Influence of Residue Type and Method of Placement on Dynamics of Decomposition and Nitrogen Release in Maize-Wheat-Mungbean Cropping on Permanent Raised Beds: A Litterbag Study

Decomposition influences carbon and nutrient cycling from crop residues. The nylon-mesh-bag technique was implied to study the decomposition N-release dynamics different residues under field conditions. four types of were: maize (lower than 50% below cob), wheat 25% stubbles), a whole mung bean residue, mixture + residue (1:1 ratio) put on soil surface in sub-surface. N release both at-surface- below-surface-placed were accurately described by single-pool first-order exponential decay function as thermal time (based accumulative daily mean temperature). simple model met criteria goodness fit. Throughout cycle (one year), rate measured decrease mass total statistically higher sub-surface compared surface-placed irrespective type. At end 150-day cycle, highest (32.0 kg ha−1), followed (31.5 ha−1) > (16.1 minimum (6.54 residue. Crop with wider C/N ratio such wheat, when applied conservation agriculture, caused occur at slower rates, thereby providing long-term beneficial effects regime, moisture conservation, C sequestration North-West India.