Vol. 9, Special Issue 1, Part N (2025)

To improve growth and leaf nutrient content of guava under rainfed conditions an experiment was conducted with twenty four treatments comprising of different concentration of Zinc sulphate and Boric acid applied alone as well as in combination, sprayed twice during last week of October and last week of November. The results revealed that the guava trees sprayed with 0.75 percent Zinc sulphate along-with 0.50 percent Boric acid recorded maximum increase in plant height, plant spread and canopy volume. Leaf area index and leaf chlorophyll content were also recorded highest with the application of 0.75 percent Zinc sulphate along-with 0.50 percent Boric acid. Leaf nutrient analysis revealed that highest increase in leaf nitrogen and leaf potassium content were also recorded with the combined treatment of 0.75 percent Zinc sulphate + 0.50 percent Boric acid. It was concluded that the guava tree growth and leaf nutrient content improved with the foliar application of 0.75 percent Zinc sulphate + 0.50 percent Boric acid.