IMPACT OF DIFFERENT COMBINATIONS OF BIO FERTILIZER AND INORGANIC FERTILIZER ON GROWTH AND YIELD OF CHICKPEA

Abstract

A field experiment was conducted at the research field of Department of Agronomy, Sher-e-Bangla Agricultural University, Dhaka from November, 2016 to March 2017 to study the impact of different combinations of bio fertilizer and inorganic fertilizer on growth and yield of chickpea. Two varieties of chickpea viz. V 1 : BARI Chola-5 and V 2 : BARI Chola-9 and six combination of bio fertilizer and inorganic fertilizer treatments (F 1 = 75% less recommended dose of inorganic fertilizer + bio fertilizer, F 2 = 50% less recommended dose of inorganic fertilizer + bio fertilizer, F 3 = 25% less recommended dose of inorganic fertilizer + bio fertilizer, F 4 = Recommended dose of inorganic fertilizer + bio fertilizer, F 5 = 25% higher recommended dose of inorganic fertilizer + bio fertilizer and F 6 = 50% higher recommended dose of inorganic fertilizer + bio fertilizer, were used in the experiment where Trichoderma was considered as bio fertilizer. Results showed that the variety, V 2 (BARI Chola-9) showed the best performance on plant height, number of branches plant -1 , dry weight plant -1 , number of pods plant , 1000 seed weight and grain yield compared to the variety, V 1 (BARI Chola-5). Again, considering the effect of bio-fertilizer and inorganic fertilizer combination, the treatment F 5 (25% higher recommended dose of inorganic fertilizer + bio fertilizer) gave the best performance on most of the parameters where the lowest was from the treatment, F 1 (75% less recommended dose of inorganic fertilizer + bio fertilizer). Considering the combined effect of variety and bio-fertilizer + inorganic fertilizer combination, the highest 1000 seed weight (234.02 g) and grain weight(2.83 t ha -1 ) was recorded from the treatment combination of V 2 where the lowest number of pods plant -1 (54.33), lowest 1000 seed weight(110.38 g) and lowest grain weight(1.57 t ha -1 ) was recorded from the treatment combination of V 2 F 1 .