Effect of boron and phosphorus on growth and yield of lentil

Abstract

A field experiment was conducted on lentil.during rabi season of 2023-24 at Crop Research Farm Department of Agronomy. The treatment consisted of 3 levels of boron (1, 2 and 3 kg/ha) and 3 levels of phosphorus (20, 40 and 60 kg/ha) along with recommended doses of nitrogen and potash and a control (20-40-20 N-P-K/ha). The experiment was laid out in a Randomized Block Design with 10 treatment and replication thrice. The treatment details are as follows: T1: Boron 1 kg/ha + Phosphorus 20 kg/ha, T2: Boron 1 kg/ha + Phosphorus 40 kg/ha, T3: Boron 1 kg/ha + Phosphorus 60 kg/ha, T4: Boron 2 kg/ha + Phosphorus 20 kg/ha, T5: Boron 2 kg/ha + Phosphorus 40 kg/ha, T6: Boron 2 kg/ha + Phosphorus 60 kg/ha, T7: Boron 3 kg/ha + Phosphorus 20 kg/ha, T8: Boron 3 kg/ha + Phosphorus 40 kg/ha, T9: Boron 3 kg/ha + Phosphorus 60 kg/ha, T10: Control (20:40:20) NPK kg/ha. Application of boron 3 kg/ha along with phosphorus 40 kg/ha (treatment 8) recorded Highest plant height (30.40 cm), higher plant dry weight (10.43 gm), higher crop growth rate (12.05 g/m/ day) 60-80 days, maximum number of pods/plant (150.86), maximum number of seeds/plant (1.80), higher seed yield (1.92 t/ha), higher Haulm yield (3.43t/ha).