COMBINED EFFECT OF ORGANIC AND INORGANIC FERTILIZERS ON THE GROWTH, YIELD AND NUTRIENT CONTENTS OF MUNGREAN (BARI Mung 6)

Abstract

An experiment was conducted at the experimental field of the farm of Sher-e-Bangla Agricultural University during the period from February to April (kharif-I season) of 2012 to study the effect of different combinations of organic and inorganic fertilizers on growth and yield of mungbean (BARI Mung 6) using RCBD (Randomized Completely Block Design) with three replications. During the experiment. three different organic fertilizers (Poultry manure, Vermicompost and Farm Yard Manure) were combined with four doses of inorganic fertilizers (25%, 50%, 75% and 100% of optimum dose) and one control treatment using no fertilizer and one treatment using only 100% of the optimum doses were included. At 30 DAS and at harvest highest plant height, number of leaves plani' and branches plani' were found from the combination of Vermicompost and 100% inorganic fertilizer which was statistically similar or closely followed by Vermicompost and 75% inorganic fertilizer treatment. Maximum numbers of pods plant4, seeds podS ' and seeds plant4 were recorded in Vermicompost and 100% inorganic fertilizer and it was closely followed by Vermicompost and 75% inorganic fertilizer. Highest seed yield plant". 1000-seed weight and seed yield hi' was recorded in Vermicompost + 100% of optimum dose of inorganic fertilizer and it was statistically similar with the treatment of Vermicompost + 75% of optimum dose of inorganic fertilizer. It was observed that, for the above parameters: Poultry manure -i- 100% of optimum dose of inorganic fertilizer and Farm Yard Manure + 100% of optimum dose of inorganic fertilizer showed better results than sole 100% inorganic fertilizer. In some cases, Poultry manure + 75% of optimum dose of inorganic fertilizer and Farm Yard Manure + 75% of optimum dose of inorganic fertilizer also performed better than sole 100% inorganic fertilizer. Lowest values for all of the growth and yield parameters obtained from the treatment using no fertilizer. Highest N and P contents in seed were recorded in Vermicompost + 100% of optimum dose of inorganic fertilizer and it was statistically similar with the application of Vermicompost + 75% of optimum dose of inorganic fertilizer. Highest K and S contents in seed were recorded in Vermicompost + 100% of optimum dose of inorganic fertilizer and it was followed by Farm Yard Manure + 100% of optimum dose of inorganic fertilizer. Vermicompost + 75% of optimum dose of inorganic fertilizer and Poultry manure ± 100% of optimum dose of inorganic fertilizer. Lowest N, P. K and S contents of mungbean seed were found from the treatment using no fertilizer.