Effect of N20 P20 K20 Nano-Fertilizer on Quantitative and Qualitative Yield of Two Potato Cultivars

Abstract

The study was conducted in the vegetable field of the Department of Horticulture and Landscape Design, College of Agriculture and Forestry, University of Mosul, during the 2021 agricultural season, in order to study the effect of spraying Nano-fertilizer N 02P 02K02 at concentrations of 1, 2, 3 and 4 g·L−1 compared to control treatment, in some components and quality of two potatoes varieties (Florice and Montreal). The experiment was conducted in a split - plot system within RCBD Design with three replications, cultivars factor arranged in the main plots and the concentrations of Nano-fertilizer in the sub plots. After recording the data and analyzing it statistically, the results were as follows: Florice variety was significantly superior in the total number of tubers, while Montreal variety was significantly superior in the percentage of dry matter, starch content of tubers and the specific weight of tubers. The use of the Nano-fertilizer at concentration of 2 g·L−1 led to a significant increase of the number of total, and marketable tubers by 4.65 tubers by plant and 11.10 tubers by plant, respectively compared to unfertilized control. The concentration of 3 g·L−1 led to a significant increase of the mean tuber weight, plant yield, marketable tubers yield, and tuber firmness to 108.54 g, 1189.38 g and 63.434 t·ha84. 10dna kg·cm−2 respectively, compared to unfertilized control. The interaction treatment between Florice cultivar and Nano-fertilizer administered in concentration of 2 g·L−1 led to a significant increase in the number of total and marketable potato tubers. The treatment of Montreal cultivar with a concentration of 3 g·L−1 Nano-fertilizer led to a significant increase of the mean tuber weight, plant yield, total yield of tubers and TSS in tubers, percentage of dry matter and starch in the tubers and the specific weight of the tubersd