Effect of organic inputs and inorganic nutrients on growth and yield of Cluster bean (Cyamopsis tetragonoloba (L.) Taub

Abstract

An experiment was conducted during winter 2012 at Department of Horticulture, Faculty of Agriculture, Annamalai University, Tamil Nadu. The Experiment was conducted in Randomized Block Design (RBD) with 12 treatments and 3 replications in the inorganic (NPK) and organic (vermicompost) were allotted to 7 different combinations of biofertilzers (Rhizobium + Pseudomonas fluorescence) and micronutrients (Zn and Fe). Results showed super imposition of 25% N organic (recommended dose of N through vermicompost) to 100% NPK (recommended dose of NPK through fertilizers), being at par with 100% NPK + 50% N organic resulted in significant improvement in growth character, plant height, branches plant-1, and yield attributes (pod length, pods plant -1 and grains pod-1) and nutrient (N, P, K, S, Zn and Fe) uptake was higher under 100% NPK + 25% N organic level. The combined effect of biofertilizers and micronutrients (biofertilizer + Zn + Fe treatment) was significantly better than their individual effects as this treatment significantly improved growth characters, yield attributes and integration of 100% NPK +25% N organic and biofertilizer + Zn + Fe was conducive for getting significantly optimum yield.