Effect of N Regimes and Green Leaf Manure Application on Nutrients Uptake by Rice Plant and Grain

Field experiments was conducted during 2001-2002 on a sandy loam soil (Fluventic haplustept) to study the effect of N regimes and green leaf manure (GLM) application on the nutrients uptake by rice and rice grain. The treatments included different N regimes viz., 100 kg N ha^-1, 150 kg N ha^-1, LCC 3, LCC 4, SPAD 33, SPAD 35 and SPAD 37 with two short duration rice genotypes viz., ADT 39 and CORH 2 with or without application of green leaf manure. Application of higher levels of N resulted in the significantly higher uptake of N, P, K, Fe, Zn, Cu and Mn by the plant. It enhanced the N, P, Zn and Mn uptake by the grain. Addition of green leaf manure had significantly increased the N, P, Zn, Mn, and Cu uptakes by the rice plant, but it did not show any significant differences among the nutrients uptakes by grain. The uptake of nutrients by rice was also increased with the advancement of crop growth.