2025, Vol. 8, Issue 2, Part C

author(s)
Biswanath Patra, B Kabat, Abhisek Kabat, BP Gantayat, RK Rout, RL Moharana and T Majhi

abstract
The study conducted at the College of Agriculture, OUAT, Bhawanipatna, Odisha, aimed to evaluate the effect of four sulphur (S) levels (0, 30, 45 and 60 kg elemental S ha-1) and four zinc (Zn) levels (0, 20, 25 and 30 kg ZnSO4 7 H2O ha-1) and the impact of different sulphur and zinc levels on the performance of groundnut (Arachis hypogeae) crops. The soil was low in available S and DTPA-extractable Zn. The application of S and Zn improved plant height, nodules, pods, kernels, protein content, pod and haulms yield, S and Zn-content in kernel and S and Zn-uptake. The treatments of Zn₃₀S₄₅ and Zn₂₅S₆₀ significantly increased economic yield and improved nutrient use efficiency, and the apparent recovery of Zinc varied considerably between 0.96 and 2.67 per cent, lowest with Zn₂₀S₃₀ and highest with the treatment of Zn₂₅S₆₀. The study recommends supplementations of 25 kg ha-1 ZnSO₄ 7 H₂O + 60 kg ha-1 elemental sulphur or 30 kg ha-1 ZnSO₄ 7 H₂O + 45 kg ha-1 elemental sulphur for higher yield over sole application of recommended fertilizer of 20-40-40 kg of N: P₂O₅: K₂O in groundnut crop in a loamy sand soil low in S and Zn.