Abstract
Corn plant is of great importance for the sufficient and economical production of plant-based proteins both in the world and in Iran. Corn cultivation in Iran contributes greatly to the production of animal protein as well. In addition, starch, glucose and oil obtained from this plant are of great importance in terms of raw material in the country's economy. In order to investigate the effect of using some low-use and high-use elements on the yield of single cross KSC 703 corn variety, an experiment was carried out in the 2022 crop year in the form of randomized complete blocks in 11 levels and in 3 replications in Azar Shahr, Iran. The traits that were measured included the plant height, length of cob, diameter of cob, number of leaves, Leaf surface area، number of seeds in cob, number of row seeds in cob and number of florets in the tassel. The results of the analysis of variance showed that all the traits investigated in the experiment were under the influence of different fertilizer treatments were applied and they were significant at the level of statistical probability of 1%, which shows the effect of the treatments on the studied traits. According to the comparison of the average traits in all investigated traits, the use of nitrogen and phosphorus is 50% more in addition to micronutrient elements, iron, manganese, and copper, with phosphorus being 50% more in addition to all three elements, iron, manganese, and copper. In the evaluation of performance among different experimental treatments, it was found that the use of iron manganese sulfate treatment with nitrogen and phosphorus 50% more than the soil test has increased the yield by 82.60% compared to the control.