Response of Soybean to Sulphur and Boron Nutrition in Vertisols of Kbirdham District of Chhattisgarh

Abstract

This study was carried out to study the response of soybean to sulphur and boron level in terms of yield and nutrient uptake. The experiment was conducted at KVK, Kawardha farm, Kabirdham (C.G.). Experiment comprised of four levels of sulphur viz. 0, 15, 30 and 45 kg ha-1 and four levels of boron viz. 0, 0.5, 1.0, 1.5 kg ha-1. Yield attributes and yield of soybean were significantly influenced by different sulphur level and maximum yield (21.04 kg ha-1 seed yield and 22.55 kg ha-1 stover yield) was observed with application of 30 kg S ha-1 and it was closely followed by 45 kg S ha-1 (19.67 kg ha-1 seed yield and 22.20 kg ha-1 stover yield) but were statistically at par with each other. Among boron levels 1.0 kg B ha-1 was superior to others for getting maximum soybean yield (18.82 kg ha-1 seed yield and 21.05 kg ha-1 stover yield). Sulphur and boron application resulted in increased nutrient uptake by soybean. Maximum nitrogen, phosphorus, potassium, sulphur and boron uptake (147.03, 10.17, 39.61, 8.35 kg ha-1 and 98.71 g ha-1 respectively) was observed with 30 kg S ha-1. Maximum uptake of nitrogen, phosphorus, potassium, sulphur and boron (131.51, 9.10, 36.85, 7.74 kg ha-1 and 89.38 g ha-1 respectively) was associated with application of 1.0 kg B ha-1. Available nitrogen, phosphorus and potassium in post-harvest soil were found higher with application of 30 kg S ha-1 and 1.0 kg B ha-1.