Abstract

• The present work deals with the study on the effect of Trichoderma inoculatedcompost biofertilizer on growth and yield of Brinjal (Solanum melongena). Tthe processing of compost biofertilizer was carried out by utilization of Trichoderma substrate (Yezin Isolate)based on farm waste bedding materials namely rice straw, cow dung and rice bran. Physicochemical properties of cow dung, rice straw and prepared compost biofertilizer were determined by conventional method and modern technique. Field experiment was conducted at Water Utilization Research Section, Department of Agricultural Research, Yezin and laid out in Randomized Complete Block (RCB) design with four treatments and five replications. Four treatments were T1 (chemical fertilizer), T2 (30% biofertilizer), T3 (chemical fertilizer with 30% biofertilizer), T4 (control without fertilizer). Analytical assays of the untreated soil and the prepared fertilizer treated soil were also carried out before sowing and after harvesting. The effect of prepared fertilizers on the growth of brinjal plant was studied on the basis of growth parameters and total yield were estimated. Among these treatments, T3(chemical fertilizer with 30% biofertilizer) was able to produce the highest yield of 8995.58 kg/ha compared with other treatments including control without fertilizer, the lowest yield of 6290.38 kg/ha. According to this study, 30% compost biofertilizer treatment produced the second highest yield of brinjal ( 7458.13 kg/ha).This study indicated that a combination treatment of biofertilizer and chemical fertilizer had significant effect on the yield and growth of brinjal. Therefore, Trichoderma inoculated compost can also be used as biofertilizer to reduce on chemical inputs in the perspective of sustainable agriculture and conservation of natural resources.