Effect of varying rice residue management practices on growth and yield of wheat and soil organic carbon in rice-wheat sequence
Two years studies were conducted rice-wheat sequence of 2007-08 and 2008-09 to assess the effect of rice residue management on growth, yield and protein content in grain and straw of wheat. The various rice residue and nutrient management systems significantly affect the plant height and number of tillers per meter and were maximum with 30% additional NPK + recommended NPK over sowing of wheat without incorporation of rice residue and recommended NPK and rice residue incorporation + recommended NPK at wheat sowing during both the years. Among the yield attributes and yield viz. number of effective tillers, length of ear head, number of spikelets per spike, grain and straw yield were also recorded maximum with the same treatment. Nitrogen uptake by grain and straw influenced significantly by rice residue and nutrient management practices during both the years. Highest nitrogen uptake by grain and straw was recorded under the treatment when rice residue incorporated with 30% additional N+P+K + recommended NPK against sowing of wheat without incorporation of rice residue + recommended NPK and rice residue incorporation + recommended NPK.
