Effect of nano-foliar spraying with G-power Ca organic fertilizer and spraying stages on some yield and seed quality characteristics of corn (Zea mays L.)

A field experiment was conducted in the spring of 2022 in one of the trial fields connected to Ibn Al-Bitar Vocational Preparatory School. This field was north of Karbala Governorate. We wanted to find out what happened to maize yield and seed quality when different amounts of G-power Ca were sprayed at different times. Randomized Complete Block Design (RCBD) was used with three replications and two factors. The first factor includes different concentrations of the nano fertilizer G-power Ca (0,2,4,6) ml L-1 L-1 for all. The second set of factors includes three different times for foliar spraying: 20 days after planting, 40 days after planting, and 60 days after planting. It was found that the foliar spray treatment with G-Power Calcium at a concentration of (6 ml L-1) was much better at increasing the number of rows per ear (row ear-1) and the number of grains in a row (grain row-1). It was also much better at increasing the weight of 500 grains (g), the concentration of nitrogen in the grains (%), and the percentage of protein in the grains (%). It also gave them the highest averages for all of these traits.