EFFECT OF DIFFERENT COMBINATION OF BIOCHAR AND VERMICOMPOST ON YIELD AND SEED QUALITY OF LENTIL

Abstract

The pot experiment was conducted at the farm of Sher-e-Bangla Agricultural University, Sher-e-Bangla Nagar, Dhaka-1207 during the period of October 2019 to February 2020 to study the effect of different combination of biochar and vermicompost on yield and seed quality of lentil. Two factors viz., Factor A: two lentil varieties; V 1 (BARI masur-6) and V 2 (BARI masur-7) and Factor B: Biochar + vermicompost (6 levels); T 1 (0 ton biochar ha ii -1 + 0 ton vermicompost ha ), T 2 (5 ton biochar ha -1 + 0 ton vermicompost ha -1 ), T 3 (0 ton biochar ha -1 + 5 ton vermicompost ha -1 ), T 4 (1 ton biochar ha -1 + 4 ton vermicompost ha -1 ), T 5 (4 ton biochar ha +1 ton vermicompost ha -1 ) and T 6 (2.5 ton biochar ha -1 +2.5 ton vermicompost ha ) were considered for the present study. The experiment was laid out in a randomized complete block design (RCBD) with three replications. BARI masur-6 (V 1 ) and BARI masur-7 (V 2 ) showed non-significant difference between them for most of the yield and seed quality parameters. Treatment T 5 (4 ton biochar ha -1 +1 ton vermicompost ha -1 ) showed the best performance on seed yield and quality and gave the highest dry weight plant -1 (10.16 g), number of pods plant -1 (63.08), number of seeds pod (1.79), number of seeds plant -1 (113.50), seed yield plant -1 (2.82 g), stover yield plant (3.57 g), biological yield plant -1 (6.38 g), harvest index (44.17%) seed germination (91.50%), shoot length (5.32 cm) and root length (3.22 cm) of seedlings after 12 days of germination and seed vigor index (781.00) compared to other treatments including control. treatment combination of V 2 T 5 registered the highest dry weight plant (10.24 g), number of pods plant -1 (63.40), number of seeds pod -1 (1.80), number of seeds plant -1 (114.70), seed yield plant -1 (2.86 g), stover yield plant -1 (3.59 g), biological yield plant -1 (6.6.45 g), harvest index (44.47%), seed germination (92.00%), shoot length (5.36 cm) and root length (3.26 cm) of seedlings after 12 days of germination and seed vigor index (793.00) compared to other treatment combinations. So, the treatment combination, V 2 T 5 (BARI masur-7 with 4 ton biochar ha + 1 ton vermicompost ha combinations.