The effect of nitrogen fertilisation on yield and
quality of maize (Zea mays L.)

ABSTRACT
Nitrogen (N) is one of the most essential nutrients affecting the yield and quality of maize (Zea mays L.). A
field experiment was conducted at the experimental plot of the Department of Agronomy, The Hungarian
University of Agriculture and Life Sciences, Hungary, to investigate the effect of nitrogen fertilisation on the
yield and quality of maize. The experimental site included four observation plots with a net of ٢ ٣ ٥ m size.
Four N levels of T١, T٢, T٣, and T٤ were sprayed at indicated plants in four replications according to
treatment viz. ٠, ٥٠, ١٠٠, and ١٥٠ kg N ha١ . Nitrogen application in general does not significantly affect
maize yield, its components, or grain quality. However, out of the four N treatments, the optimal N
application between ٥٠–١٠٠ kg N ha١ potentially increased the yield, also the total expression of protein
and starch contents in maize can be achieved with the right amount of N fertiliser, indicating that the
treatment could produce a high grain yield as well as high protein and starch contents. Good N fertilising
practice will boost the maize’s nutritional value and make it more significant in the agriculture in the future.
In addition, more research and assessment are essential to acquire the most benefit from the effect of
optimal N application on maize yield and quality, and the findings could be beneficial to researchers and
growers