Vol. 12, Issue 12 (2023)

Author(s):
AD Rathod, JM Modhvadia, RJ Patel, RB Thanki and ND Bhedarada

Abstract:
A study conducted in the summer of 2021 evaluated the effects of various phosphorus levels and thiourea applications on the growth and nutrient dynamics of green gram in loamy sand soil. The experiment comprised four phosphorus levels (0, 20, 40, and 60 kg/ha) and five thiourea treatments (control, 500 ppm at branching, 500 ppm at branching and flowering, 1000 ppm at branching, and 1000 ppm at branching and flowering), resulting in fifteen treatment combinations. Results showed that applying up to 60 kg/ha of phosphorus significantly increased seed and straw yield, net returns, seed protein content, and nitrogen, phosphorus, and potassium concentrations and uptake. Notably, similar outcomes were observed at 40 kg/ha. The most substantial efficiency gains in phosphorus utilization were observed when increasing levels from 0 to 60 kg/ha. Additionally, the application of 500 ppm thiourea at both branching and flowering stages notably enhanced nitrogen and phosphorus concentrations, total nutrient uptake, and seed protein content. This study underscores the efficacy of tailored phosphorus and thiourea treatments in optimizing green gram cultivation in specific soil types.