Maize growth and yield as affected by various nitrogen level in Islamabad capital territory [Pakistan]
1998
Akhtar, M. | Malik, H.N. | Aslam, M. (National Agricultural Research Centre, Islamabad (Pakistan))
An experiment was conducted on farmer's field in the federal district of Islamabad during the years 1994 and 1995 to compare the effectiveness of various Nitrogen levels on the growth and productivity of maize. Maize crop was applied various N levels of (i) O N, (ii) 50 kg N ha-1, (iii) 100 kg N ha-1, and (iv) 150 kg N ha-1. Application of 100 kg N ha-1 produced significantly tallest plants at maturity, more number of ears per plant (1.4), maximum number of grains per ear (315.6) and maximum grain yield (4.93 t ha-1) compared with 0. 78 ears per plant, 80.3 grains per ear and 1.25 t ha-1 average grain yield with no nitrogen application. Application of 100 kg N ha-1 increased number of ears per plant by 62.00%, number of grains per ear by 292.8%, and grain yield by 294.4% over control. Application of 100 kg N ha-1 proved to be the best dose to get maximum productivity of corn in Lapara soils of Islamabad capital territory.
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