Vol. 12, Issue 10 (2023)

Author(s):
Rajendra Singh, SL Sharma, AS Godara and Ashok Choudhary

Abstract:
An experiment was conducted during the Kharif seasons of 2021 and 2022 at Agricultural Research Station, Fatehpur, Sikar (Rajasthan) to evaluate the effect of phosphorus and salicylic acid on yield, nutrient uptake and quality of Mungbean. Five phosphorus levels [0, 15, 30, 45 and 60 kg ha^-1) in main-plots and four concentrations of growth regulators viz. no spray, salicylic acid 50 ppm, salicylic acid 75 ppm and salicylic acid 100 ppm, in subplots were studied in split-plot design with 3 replications. Application of 45 kg phosphorus produced significantly higher seed (1822 kg ha^-1) and straw yield (3145 kg ha^-1) over preceding graded lower levels and found at par with 60 kg phosphorus. Successive increase in phosphorus levels up to 45 kg ha^-1 significantly increased nitrogen, phosphorus and potassium content in seed and straw. However, significantly highest uptake of nitrogen (73.0 & 42.5 kg), phosphorus (7.9 & 7.7 kg) and potassium (26.0 & 61.9 kg) by seed as well as straw was observed at 60 kg phosphorus ha^-1 over lower levels, respectively. Significant increase in seed protein content (23.8%) as well as protein yield (316.9 kg ha^-1) was recorded with successive increase in phosphorus levels up to 45 kg ha^-1 and beyond it increase was marginal. Foliar spray of salicylic acid 75 ppm resulted in significantly higher seed (1789 kg ha-1) and straw yield (3100 kg ha^-1) over lower concentrations and remained at par with 100 ppm salicylic acid. Salicylic acid @ 75 ppm increased nitrogen, phosphorus and potassium content of seed and straw over lower concentrations, while the highest uptake of these nutrients were observed with 100 ppm salicylic acid. Seed protein content (23.3%) and protein yield (307.5 kg) were significantly higher up to 75 ppm salicylic acid over lower concentrations of salicylic acid.