13 Oct Managing Crop Residue for Enhancing Nutrients Availability in Soils
मिट्टी में पोषक तत्वों की उपलब्धता में वृद्धि के लिए फसल अवशेषाेें का रखरखाव Crop residues have multiple uses on agricultural and allied sectors. Rice-wheat is the founder cropping system of Indo-Gangetic Plains (IGP) of South Asia which support food and energy source of a millions. Burning and/or removal of crop residue are not economical rather than endanger to ecosystem functions. A multiple problems are faced by crop growers on managing residues at time of harvesting to proceed for next crop. However, by adopting some useful interventions, a sizeable quantity of primary plant nutrients can be supplemented in soil without sacrificing the economic return of targeted crop. Crop residues are organic vegetative crop materials offer sustainable and ecologically sound alternatives for meeting the nutrient requirements of crops. These resources are facing increasingly competing uses, including soil and water conservation, livestock feed, industrial uses (e.g. papermaking fiber) and most recently, as feed stocks for cellulosic ethanol production (Blanco-Canqui et al., 2009). Rice-wheat is a major crop rotation in the Indo Gangetic Plains (IGP) of South Asia, spread over 13.5 million ha in Bangladesh, India, Nepal and Pakistan (Ladha et al., 2000). Burning of rice residues is cost-effective and the predominant method of disposal in areas under combined harvesting in the IGP (Samra et al., 2003). However,...