To Study the Effect of Potassium and Sulfur on Growth and Yield of Black Gram (Vigna mungo L.)

Abstract

A field experiment was conducted during Zaid 2021, at Research Farm, Department of Agronomy. The experiment was laid out in Randomized Block Design with nine treatments which are replicated thrice. The treatments details viz., T1: 20 kg K ha-1 + 15 kg S ha-1, T2: 30 kg K ha-1 + 20 kg S ha-1, T3: 40 kg K ha-1 + 25 kg S ha-1, T4: 20 kg K ha-1 + 15 kg S ha-1, T5: 30 kg K ha-1 + 20 kg S ha-1, T6: 40 kg K ha-1 + 25 kg S ha-1, T7: 20 kg K ha-1 + 15 kg S ha-1, T8: 30 kg K ha-1 + 20 kg S ha-1, T9: 40 kg K ha-1 + 25 kg S ha-1 was used. The result showed that higher plant height (50.3 cm), maximum number of branches per plant (5.93), highest number of nodules per plant (15.73), maximum dry weight (8.63), CGR g/m2/day (7.90), maximum number of pods per plant (20.13), highest number of seeds per pod (6.20), test weight (33.60), seed yield (1456.67 kg ha-1), harvest index (32.06) and relative growth rate (0.013) were recorded significantly with the application of 40 kg ha-1 Potassium pulse 25 kg ha-1 Sulphur. Highest crop growth rate (7.90) was recorded with 40 Potassium kg ha-1 + 25 Sulphur kg ha-1.