Productivity and Nutrient Uptake Influenced by Zinc and Iron on Summer Mungbean

Nutrient management is one of the most significant strategies that have an impact on mungbean (Vigna radiata L.) growth and development. Therefore, the field trial was carried out at RRTTSS, Kirei, Sundargarh during summer season 2021. Experiment consists of eight treatment including T1- control (RDF: 20-40-20 kg/ha and FYM 5 tha-1), T2 - T1+ 0.5% ZnSO4 FI, T3 - T1+ 0.5% ZnSO4 FI & PI, T4 - T1+ 0.5% FeSO4 FI, T5 - T1+ 0.5% FeSO4 FI & PI, T6 - T1+ 0.5% ZnSO4 and 0.5% FeSO4 FI, T7 - T1+ 25 kgha-1 ZnSO4 soil application, T8 - T1+ 50 kg ha-1 FeSO4 soil application and replicated thrice with RBD. The results of the experiment revealed that yield attributes viz. pods per plant (15.63), seeds per pod (10.50), Seed yield (521 kg ha-1) and stover yield (1307 kg ha-1), total uptake of N (36.47 kg ha-1), P (4.60 kg ha-1), K (27.95 kg ha-1), Zn (47.99 g ha-1) and Fe (156.98 g ha-1) were recorded significantly highest under the treatment of 0.5% ZnSO4 and 0.5% FeSO4 foliar spray at flower initiation stage along with RDF and FYM. The highest N, P and K uptake was found with application of 0.5% ZnSO4 and 0.5% FeSO4 at flower initiation stage (20.09 kg ha-1), (2.17 kg ha-1) and (3.37 kg ha-1) in seed & stover (16.38 kg ha-1), (2.43 kg ha-1) and (24.58 kg ha-1), respectively.