Effect of foliar zinc nutrition on yield and zinc use efficiency of rice (Oryza sativa)
Author(s):
Megha Panwar, Anjali, Sudershan Mishra, SP Pachauri and SK Guru
Abstract:
Zinc (Zn) is an essential micronutrient for plants and animals and its deficiency causes large scale yield losses in major crops such as rice. Zn is applied to the plants either through the soil or as foliar spray or both. The present study was carried out to evaluate the effect of foliar application of different concentrations (0, 0.25, 0.5, 0.75 and 1%) of ZnSO4.7H2O on biological yield and total zinc uptake of rice cultivar PD-12. Results indicated that foliar application of zinc caused significant changes in most of the parameters under study. With three sprays of 0.25% ZnSO4,a 40.72% increase in economic yield was obtained. Straw yield, biological yield and total zinc uptake was found to be higher when plants were treated with three sprays of 0.5% ZnSO4.Evaluation of agronomical and physiological efficiency revealed that there was decrease in agronomical efficiency with increase in concentration from 0.25% to 0.75% ZnSO4whereas physiological efficiency was found to be increased at 1% ZnSO4.
How to cite this article:
Megha Panwar, Anjali, Sudershan Mishra, SP Pachauri, SK Guru. Effect of foliar zinc nutrition on yield and zinc use efficiency of rice (Oryza sativa). Pharma Innovation 2023;12(2):2205-2208.