Effect of organic sources of nitrogen on nutrient uptake and yield of baby corn

Abstract

The experiment was conducted during rabi season of 2016-17 at Agronomy Organic Farm, College of Agriculture, Pune and laid out in randomized block design with twelve treatments and three replications. The treatments consisted of six different organic manures i.e. FYM, Vermicompost, Poultry manure, castor seed cake, cotton seed cake and neem seed cake and their combinitions. The application of 100% RDN through poultry manure recorded significantly higher nitrogen, phosphorus and potassium uptake by crop than rest of the treatments. The corresponding values were 97.94 kg ha-1 N, 34.09 kg ha-1 P and 104.26 kg ha-1 K, respectively. The second best treatment was application of 50% RDN through vermicompost + 50% RDN through poultry manure. However, the lowest nitrogen, phosphorus and potassium uptake by crop was noticed in absolute control. Cob yield (135.23q ha-1) and green fodder yield (355.99q ha-1) of baby corn were highest with application of 100% RDN through poultry manure.