PJB-2020-496
Synchronization of zinc rates through soil and foliar application with synthetic fertilizer to maximize growth, yield and quality attributes of mango
Muhammad Mehboob Hassan Khan and Niaz Ahmed
Abstract
Zinc (Zn) deficiency is among the major constraints for reduced fruit production and quality in mango orchards soils. Therefore, the judicious use of Zn in mango orchards is gaining attention. Although, the farming communities are using Zn as a micronutrient fertilizer; however, the synchronization of inorganic fertilizers and Zn application rate is yet to be performed under changing climatic conditions. Therefore, the current experiment was performed to assess better application methods (soil and foliar application) and judicious rates of Zn with recommended doses of nitrogen (N), phosphorus (P) and potassium (K) for mango trees. Zinc was applied as ZnSO4 at the rate of 0, 150, and 300 g plant-1 as basal application and 0, 0.5, and 1.0% as a foliar application. Results confirmed with an increase in soil and foliar-applied Zn solely, growth, quality and yield of mango fruit improved. Combined use of soil and foliar Zn gave more positive effects over sole application. Treatment T7 (recommended NPK + ZnSO4 (150 g plant-1 as basal and 1.0% as foliar spray)) followed by T8 (recommended NPK + ZnSO4 (300 g plant-1 as basal and 1.0% as foliar spray)) were statistically alike for the improvement in yield per tree, photosynthetic rate, transpiration rate and sugar contents. In conclusion, recommended NPK + ZnSO4 (150 g plant-1 as basal and 1.0% as foliar spray) is a better approach for maximizing the yield, growth attributes and quality of mango fruits.
To Cite this article:
Khan, M.M.H. and N. Ahmed. 2022. Synchronization of zinc rates through soil and foliar application with synthetic fertilizer to maximize growth, yield and quality attributes of mango. Pak. J. Bot., 54(2): DOI: http://dx.doi.org/10.30848/PJB2022-2(26)
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