EFFECT OF NITROGEN, PHOSPHORUS AND BIO-FERTILIZER ON YIELD AND SEED QUALITY OF LENTIL

Abstract

The experiment was conducted at Sher-e-Bangla Agricultural University, Dhaka-1207 during the period from November 2017 to March 2018 to examine the effect of nitrogen, phosphorus and bio-fertilizer on yield and seed quality of lentil. The treatment consisted of two factors viz. (1) Factor A: two biofertilizer levels; (i) B 0 = 0 (Control; without Bio-fertilizer) and (ii) B = Bio-fertilizer (50 gm per 2.5 kg of seeds) and (2) Factor B: six nitrogen and phosphorus levels; D 0 = Control (without N+P), D 1 = 50% less N+P, D 2 1 = 25% less N+P, D = Recommended doses of N+P, D 4 = 25% higher N+P and D = 50% higher N+P. The experiment was conducted in randomized complete block design (factorial) with three replications. A significant variation among the treatments was found while biofertilizer application and different levels of N+P fertilizers applied in different combinations. The highest number of pods plant 5 (69.23), number of seeds pod -1 (2.12), 1000 seed weight (21.20 g) and seed yield (2576.60 kg ha -1 ) were obtained from the treatment combination of B where the lowest was from B 0 D . Considering seed quality parameters, all the parameters were significantly affected by combined effect of biofertilizer and N+P treatments except percent seed germination and root length. However, the highest percent (%) seed germination (97.00%), root length (2.95 cm), shoot length (6.52 cm) and seed vigor index (635.39) was obtained from the treatment combination of B 0 1 D . Considering results of the experiment, application of biofertilizer, along with NPK fertilizer is best producing greater yield and better quality of lentil seed. 3 -1 1 D 3 3