Arabic 
English 
The College of Agriculture, University of Kirkuk, discussed a master’s thesis on the effect of spraying with NPK nanofoliar fertilizer on the growth, yield, components, and quality of genotypes of yellow corn, by the student Saeed Ismail Hussein, and under the supervision of Professor Dr. Khaled Khalil Ahmed.
The study aimed to "know the extent of the response of the genotypes of the yellow corn crop to spraying with NPK nanofertilizer, and to find out the best concentration for foliar spraying with the nanofertilizer NPK and the effect of that on the growth characteristics, yield and its components, and the qualitative characteristics of the yellow corn crop, and to study the interaction between the genotypes of yellow corn with the levels of the nanofertilizer NPK."
The study concluded, “The NPK nanofertilizer level of 4 gm.l-1 gives the highest grain yield and protein percentage in grains as a result of the role of the NPK nanofertilizer directly on cell division and expansion processes, which led to an increase in plant growth rates. The two genotypes Erbil 215481 and DKC6664 outperformed the All genotypes in grain yield and the Yugoslavian composition in the percentage of protein in grains, where the role of the difference in genotype in the performance of yield, grain and quality characteristics appeared as it is reflected in the physiological performance of the plant.
