Effect of Nano Organic Nutrient Application and Boron on Vegetative Growth , Yield, Quality and Mineral Content of Potato (Solanum tuberosum L.)

Abstract

A field experiment in spring 2024 at the University of Mosul evaluated potato response to foliar applications of a nano organic nutrient (Optimus Plus) and boron using a factorial RCBD design. Optimus Plus was applied at 0, 2, and 4 ml L⁻¹, and boron at 0, 100, and 125 mg L⁻¹ across three growth stages. To promote growth, fertilizers were applied in three split doses: the first, 15 days after planting, included the full dose of phosphorus fertilizer; the second, at emergence, included half of the nitrogen and the full dose of potassium; and the third, one month after the second. Data were statistically analyzed using the SAS SAS (2017).  software package  according to the experimental design, and treatment means were compared using Duncan’s Multiple Range Test at a significance level of ≥ 0.05.