Abstract
This study was conducted to determine the response of organic manure and inorganic N source on groundnut. The study involved a 3 x 5 factorial design with three organic manure (0, 5, 10 tons ha−1) levels and five N dose levels (0, 25, 50, 75, 100 kg N ha−1) with three replications. The combination treatment of 10 tons ha−1 manure with 100 kg N ha−1 had the highest (P<0.05) plant height, chlorophyll content, pod yield, and 100-seed kernel weight among all the treatment combinations applied. Interaction between manure and N, was not significant for leaf area index, nitrate reductase activity, kernel protein and harvest index. The highest nitrate reductase activity was with 5 tons ha−1 of manure, and 75 kg N ha−1. The highest harvest index was obtained with 50 kg N ha−1.
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