Performance of lentil on strip tillage under different seed rate

抄録

The experiment was conducted at Regional Agricultural Research station, BARI, Ishuardi, Pabna, Bangladesh during rabi season of 2015-16 and 2016-2017.The objectives of this study is to find out the optimum seed rate of lentil under strip tillage system and to evaluate the performance of strip tillage over conventional method operated by two wheeler, utilization of crop residue and residual soil moisture on lentil. Four seed rate and two seeding practice were assigned in a split plot design with three replications. The total time requirement for field preparation and planting was highest in conventional tillage (15.5 hr/ha), and lowest in strip tillage (5.26 hr/ha). The fuel consumption during seeding operation was 56.2% lower than conventional tillage. The strip tillage achieved higher grain yield 1499 (kg/ha) than conventional tillage 1322 (kg/ha). Among the seed rate maximum yield was obtained from treatment 150% RSR where the yield was recorded 1536 kg/ha. Strip tillage seeding system obtained maximum yield at each seed rate like 75% RSR, 100% RSR, 125% RSR, and 150% RSR over conventional technique. Strip tillage seeding system increased yield about 13.39% with 56.2% of lower fuel consumption and save 66.06% time compare to conventional tillage and broadcasted method. Functional relationship also indicated that, the predicted optimum seed rate at both tillage system with maintain 30 cm rice residue was near about 39 kg/ha at residual soil moisture condition.