INFLUENCE ON SOIL PHYSICO-CHEMICAL PROPERTIES IN GREEN GRAM DUE TO APPLICATION OF MULTIPLE PHOSPHORUS AND SULPHUR LEVELS

Abstract

An experiment was conducted during Zaid season (May-July) 2021 on crop research farm Department of Soil Science & Agricultural Chemistry. The experiment was laid out in Randomized Block Design having three levels of Phosphorus @ 0%, 50 %, 100% and three levels of Sulphur @ 0%, 50% and 100% respectively. The treatment combinations were replicated three times and allocated at random in each replication. The result shows that the application of different levels combination of Phosphorus and Sulphur increased growth and yield of green gram and improved soil chemical properties. However, some parameters of soil physical properties decreased. It was recorded from the application of Phosphorus and Sulphur treatment T9 has maximum Bulk density 1.285 Mg m-3 in 0-15 cm and 1.286 Mg m-3 in 15-30 cm, Particle density 2.551 Mg m-3 in 0-15 cm and 2.552 Mg m-3 in 15-30 cm, % pore space 50.372% in 0-15 cm and 50.391% in 15-30 cm, Water holding Capacity 45.89 % in 0-15 cm and 45.78 % in 15-30 cm, pH 8.001 in 0-15 cm and 8.003 in 15-30 cm, EC 0.411 dSm-1 in 0-15cm and 0.413 dSm-1 in 15-30 cm, % Organic Carbon 0.413 % in 0-15 cm and 0.435 % in 15-30 cm, Available Nitrogen 238.152 kg ha-1 in 0-15 cm and 237.792 in 15-30 cm kg ha-1, Available Phosphorus 20.351 kg ha-1 in 0-15 cm and 16.432 kg ha-1 in 15-30 cm, Available Potassium 193.257 kg ha-1 in 0-15 cm and 182.975 kg ha-1 in 15-30 cm, Available Sulphur 15.986 kg ha-1 in 0-15 cm and 15.724 kg ha-1 in 15-30 cm.