Effect of foliar spraying of micronutrients on growth and yield of potato (Solanum tuberosum)

The experiment was conducted to find out the effect of foliar spraying of micronutrient on growth and yield of potato (Solanum tuberosum L.) during 2019–20 at Vegetable Research Farm, Department of Horticulture, BHU, Varanasi. The experiment was laid out in a randomised block design with 3 replications having 9 treatments. The treatments were T (control), T₂ (B-20 (boron) @ 0.06%), T₃(B-20 (boron) @ 0.09%), T₄(zinc sulphate @ 0.03%), T₅ (zinc sulphate @ 0.05%), T₆ (B-20 (boron) @ 0.06% + zinc sulph ate @ 0.03%) T₇ (B-20 (boron) @ 0.06% + zinc sulphate @ 0.05%), T₈ (B-20 (boron) @ 0.09% + zinc sulphate @ 0.03%) and T₉ (B-20 (boron) @ 0.09% + zinc sulphate @ 0.05%). T₉ (B-20 (boron) @ 0.09% + zinc sulphate @ 0.05%) was found to be the best for all the growth and yield traits except for number of leaves in that T₃ (B-20 (boron) @ 0.09%) was recorded with highest value, for the rest trait followed by T₇ (B-20 (boron) @ 0.06% + zinc sulphate @ 0.05%) and T₈ (B-20 (boron) @ 0.09% + zinc sulphate @ 0.03%), while the least value was observed in T₁ (control) that was sprayed with water.