Effect of Soil Application and Foliar Spray of Sulphur Nutrition on Growth and Yield of Black Gram (Vigna mungo L.)

Abstract

Aim: To study the effect of soil application and foliar spray of sulphur nutrient application in growth and development of black gram cultivation. Study Design: The Factorial Randomized Block Design (FRBD) was used. The treatments of soil application of sulphur viz., No basal, Gypsum @ 25 kg ha-1, SOB @ 2 kg ha-1 as basal and foliar spray viz., No spray, pulse wonder @ 5 kg ha-1on 30 DAS, K2SO4 @ 1% on 45 DAS, pulse wonder @ 5 kg ha-1 on 30 DAS + K2SO4 @ 1% on 45 DAS were used. Place and Duration of Study: This research trail was conducted during the Winter season (February – May) of 2022 at ICAR - Krishi Vigyan Kendra, Sirugamani, Trichy, Tamil Nadu, India. Methodology: The study consisted of 12 combination of treatments in FRBD which was replicated thrice. The black gram (Var. Vamban 8) was used for this study. The observations were recorded during the different phases of growth at regular intervals. Results: The experimental results revealed that the interaction effect of application of gypsum as basal along with foliar spray of pulse wonder + K2SO4 found to be superior and recorded significantly higher growth, yield and quality parameters viz., plant height, number of branches plant-1, dry matter accumulation, SPAD value at 20 DAS, 40 DAS and 60 DAS number of pods plant-1, number of seed pod-1, pod length, pod weight and sulphur content in seed. Gypsum as basal application along with foliar spray of pulse wonder + K2SO4 proved to be the best and increased the grain yield of 30% over the no basal application and no foliar spray. Thus application of gypsum @ 25 kg ha-1 as basal and foliar spray of pulse wonder @ 5 kg ha-1 on 30 DAS + K2SO4 @ 1% on 45 DAS could be recommended for improving the productivity of black gram.