The effect of NPK application in different proportions on the growth and yield of spring maize

Pakistan Journal of Biological Sciences (Pakistan), 2000 - agris.fao.org
Fertilizer levels were kept at 0, 100, 150, 200, 250 and 300 kg N/ha with a constant dose of
100 kg/ha of phosphorus and potash. Maize variety Sunehri was used as a source of trial …