Effect of Phosphocomopost on Yield, Phosphorus Uptake Pattern and Net income of Groundnut (Arachis Hypogaea L.) in Acid Soil Under Terai Region of West Bengal

An investigation was carried out during 2007 and 2008 in the instructional farm of Uttar Banga Krishi Viswavidyalaya, Pundibari, Cooch Behar, to evaluate the effect of phosphocompost on yield, net income and phosphorus uptake pattern of groundnut in acid soil under terai region of west Bengal. The experiment was laid out in RBD with three replications. Among the yield attributes of groundnut, percentage of mature pods, number of mature pods plant⁻¹, 100 pod weight and pod yield were significantly better in T₇ (150% phosphocompost grade-I) than the phosphocompost grade-II (lower percentage of total phosphorus) and sole application of single super phosphate. Performance of T₅ (100% phosphocompost grade-I) and T₆ (125% phosphocompost grade-I) was at par in most of the yield attributing characteristics of groundnut. Total phosphorus uptake was increased consistently with crop age up to 90 days after sowing, wherever phosphocompost grade-I was applied in higher doses (100% and above) over sole application of chemical fertiliser.