Response of some maize genotypes traits (Zea mays L.) to Nano NPK fertilizer

Abstract

A factorial experiment was conducted through fall season 2022 in the Bani Magan area belonging to the Directorate of Agriculture of Chamchamal and affiliated to the General Directorate of Agriculture of Sulaymaniyah using randomized complete block design in split plot system with three replication, to know the effect of three concentrations (0, 2, and 4) g.L-1 of nano-sama NPK and the response of seven genotypes of maize crop to some growth traits and total yield, and the following results were obtained: The concentration of 4g L-1 NPK nano-compound fertilizer was significantly surpassed for the characteristics of the duration from sowing up to 50% of male flowering, plant height, ear height, and total grain yield. The two genotypes (Yugoslavian and DKC6664) were significantly surpassed for period from sowing to 50% male flowering, and the genotype (DKC6664) was significantly surpassed for the period from sowing to 50% female flowering (day(.The two genotypes (Babylon and Bahia) were significantly surpassed for plant height, the genotype (Bahia) for ear height, the genotypes (Sangunto, Bahia and Babel) for leaf area, and the two genotypes (DKC6664 and Erbil 215481) for grain yield Total and the effect of combination between, treatment 2g.L-1. and genotype (Yugoslav) had the least number of days 50% of the female flowering, and the combination between the fertilizer level 2 and 4 g.L-1 and genotype (DKC6664) had the least number of days 50% of the female flowering, and the combination between the fertilizer level was 4 g. L-1 with genotype (Babylon) significant in plant height and fertilizer level 4g. L-1 with genotype (Bahia) in ear height character and control treatment. The level of fertilizer is 2 and 0 g.l-1 with genotypes (Bahia) in the characteristic of leaf area, and the level of fertilizer is 4 g.l-1 with genotype (Erbil 215481) in total grain yield.