Author: Kamal, A.K. Dhaka, Ram Prakash, Amit Sharma and B.K. Dhaka
Due to unbalanced nutrient application, productivity of groundnut is lower than anticipated in India. The efforts to enhance groundnut production can be achieved by proper nutrient management practices. So, keeping this in view, the field experiment was conducted during the Kharif season of 2021 at crop physiology field lab, Department of Agronomy, Chaudhary Charan Singh Haryana Agricultural University, Hisar. The experiment was laid out in split plot design with four phosphorus levels (0, 40, 50, 60 kg P2O5 ha-1) in main plots and four sulphur levels (0, 25, 50, 75 kg Sha-1) in sub-plots with three replications. The highest uptake of N (82.9 kg ha-1), P (12.7 kg ha-1), K (14.6 kg ha-1), S (8.2 kg ha-1) by kernel and N (97.6 kg ha-1), P (16.7 kg ha-1), K (81.7 kg ha-1), S (15.0 kg ha-1) by haulm were obtained with application of 60 kg P2O5 ha-1, which were significantly higher over control by 90.5, 92.4, 75.9, 95.2 and 47.2, 81.5, 46.4, 78.5 percent, respectively. Among sulphur levels, highest uptake of N (79.0 kg ha-1), P (12.3 kg ha-1), K (14.2 kg ha-1), S (8.0 kg ha-1) by kernel and N (93.7 kg ha-1), P (15.4 kg ha-1), K (77.8 kg ha-1), S (13.9 kg ha-1) by haulm were obtained with 75 kg Sha-1, which were significantly higher over control by 51.0, 55.6, 46.3, 63.2 and 25.4, 38.7, 24.0, 43.2 percent, respectively.
Groundnut, phosphorus levels, sulphur levels, nutrient uptake
Based on the above cited results of the experiment it could be concluded that application of 60 kg P2O5 ha-1 and 75 kg S ha-1 significantly improved nutrient uptake of groundnut but it was statistically at par with application of 50 kg P2O5 ha-1 and 50 kg S ha-1. So, to obtain better uptake of nutrient groundnut, crop may be fertilized with phosphorus and sulphur levels of 50 kg ha-1 each.
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Kamal, A.K. Dhaka, Ram Prakash, Amit Sharma and B.K. Dhaka (2023). Effect of Phosphorus and Sulphur Levels on Nutrient Content and Uptake of Groundnut (Arachis hypogaea L.). Biological Forum – An International Journal, 15(2): 1023-1026.