Abstract
Background: The Zinc deficiency is a worldwide nutritional constraint for crop production in many types of soil. Appropriate application methods of Zn fertilizer are still unclear. The main objective of this study was to investigate the effects of Zn fertilizer and application methods on the growth characteristics of Vigna unguiculata. Methods: The present study was conducted to evaluate the effects of Zinc fertilizer and application method on photosynthetic characteristics and yield of Vigna unguiculata from June to September of 2019, in Jaipur, Rajasthan, India. A pot experiment was conducted as a factorial design with 3 replications. Result: The application of 15 kg ZnSO4.7H2O/ha increased chlorophyll content in leaves, improved photosynthesis and increased protein content of Vigna unguiculata, when applied as foliar application as opposed to being applied in basal application. These results have important implications for guiding the rational application of Zinc fertilizer and improving the yield of Vigna unguiculata.
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