American-Eurasian Journal of Agronomy 2 (3): 180-184, 2009 ISSN 1995-896X © IDOSI Publications, 2009 Correspoding Author: Md. Asaduzzaman, Department of Agronomy, Sher-e-Bangla Agricultural University, Dhaka-1207, Bangladesh 180 Interaction Effect of Variety and Different Fertilizers on the Growth and Yield of Summer Mungbean Md. Salah Uddin, A.K.M. Ruhul Amin, Md. Jafar Ullah and Md. Asaduzzman Department of Agronomy, Sher-e-Bangla Agricultural University, Dhaka-1207, Bangladesh Abstract: An experiment was carried out in experimental field of the department of Agronomy, Sher-e-Bangla Agricultural University, Dhaka, Bangladesh to investigate the interaction effect of variety and fertilizers on the growth and yield of summer Mungbean during the summer season of 2007. Five levels of fertilizer viz. control, N + P +K, Biofertilizer, Biofertilizer + N + P + K and Bio-fertilizer + P + K. and three varieties BARI mung 5, BARI mung 6 and BINA mung 5 were also used as experimental variables. The experiment was laid out in Randomized Block Design with fifteen treatments where each treatment was replicated three times. Results showed that most of the growth and yield component of mungbean viz. plant height, branch plant , number of nodules plant , 1 1 total dry matter plant , pods plant , seed plant , seed pod , weight of 1000-seeds, seed yield and straw 1 1 1 1 yield were significantly influence by the bio-fertilizer (Bradyrhyzobium inoculums) treatment except number of leaves and dry weight of nodule. These are influenced by chemical fertilizer and biofertilizer also. All the parameters performed better in case of Bradyrhyzobium inoculums. BARI mung 6 obtained highest number of nodule plant and higher dry weight of nodule. It also obtained highest number of pod plant , seed plant , 1 1 1 1000 seed weight and seed yield. Interaction effect of variety and bio-fertilizer (Bradyrhyzobium) inoculation was significant of all the parameters. BARI mung 6 with Bradyrhyzobium inoculums produced the highest number of nodule and pod plant . It also showed the highest seed yield, Stover yield and 1000-seed weight. 1 Key words: Variety Biofertilizer Growth Yield INTRODUCTION Therefore, to meet the situation, it is necessary to boost Mung bean (Vigna radiata L.) is an important proper management practices as well as cultivation of pulse crop of Bangladesh. It is generally used as ‘Dhal’ or summer mungbean. Fitting them in our usual cropping vegetable soup and often feed to babies. On an average system and use of seed inoculation with effective Bangladesh as diet, only 8-10 percent of protein intake Bradyrhizobium strains should get priority to produce originates from animal sources, the rest can be met from better nodulation, nitrogen fixation, growth and higher plant sources by increasing the consumption of pulses. yield. Besides, being a source of protein for man and Hence from the point of nutritional value, mung bean is animal, like other legumes, mungbean has the ability to perhaps the best of all other pulses [1]. In mung bean increase the nitrogen fertility of soils through biological seed, there is 51% carbohydrate, 26% protein, 3% minerals nitrogen fixation with symbiont Bradyrhizobium. Franco and 3% vitamins [2]. In Bangladesh, the main form of [3] revealed that Rhizobium strains in association with the protein readily available to the bulk of the population is host plant were able to fix approximately 20% to the plant protein. As the population has increased and the atmospheric nitrogen throughout the world annually. cost of production of animal protein have soared, it is Hence, selection of suitable mungbean Bradyrhizobium preferred, is economically out of reach for the bulk of is one of the most important means of obtaining higher population in the both rural and urban areas, pulse has no yield. Vincent [4] reported that inoculation is necessary alternative. for soils where the rhizobia are ineffective or where they Pulse as well as mungbean production has been were sparse. The most economical way to provide steadily decreasing due to reduced acreage because of additional nitrogen is through inoculation of seeds and expansion of rice especially boro rice cultivation area. soils with effective strains that can produce maximum up the production through varietal development and