Effect of levels of lime and nitrogen on nutrient uptake and residual soil fertility in groundnut (Arachis hypogaea L.)

An experiment was conducted during 1997 and 1998 to study the response of groundnut to lime and nitrogen. The results revealed that highest N, P and K uptake both in Kernel and stover and total uptake were recorded under 50% lime requirement (50% LR). Available N, P₂O₅, and K₂O recorded after harvest of the crop were significantly higher under 50% LR than that of unlimed condition. Application of nitrogen resulted in significantly higher N, P and K uptake but 40 kg N/ha application caused maximum increase. Nitrogen levels recorded significantly higher available N in soil after harvest over no nitrogen.