Journal of Food, Agriculture and Environment

Vol 12, Issue 3&4,2014
Online ISSN: 1459-0263
Print ISSN: 1459-0255

Impact of nitrogen fertilisation and irrigation on water utilization efficiency, N accumulation, growth and yields of Zea mays L.


Waleed Hassan Abou El-Hassan 1, Emad Maher Hafez 2*, Alaa A. Ahmed Ghareib 1, Mohamed Ragab Freeg 1, Mahmoud Fathy Seleiman 3, 4*

Recieved Date: 2014-05-09, Accepted Date: 2014-09-18


Water and N are considered the most limiting factors for the growth and yield during the grain filling stage, particularly in the arid, semi-arid zones. The aim of the study was to investigate the effect of N applications (0, 140, 280 and 420 kg ha-1) and water regimes (I1= 100%, I2= 80% and I3= 60% of field capacity) on nitrogen use efficiency (NUE), water utilization efficiency (WUtE) and related parameters and grain yield and its components of Zea mays L. (cv maize hybrid Giza 10). The highest N application resulted in a significant increase in grain yield and its components, accumulated N in grains and shoots. However, it significantly decreased apparent N fertiliser recovery (ANR) and N utilisation efficiency when all water regimes were applied. N application of 280 kg ha-1 was the optimal in our study for such environmental conditions. Yield and its components were increased with increasing soil field capacity from 60 to 100%. There was a significant effect of the interaction between irrigation and N treatments on N efficiencies, growth and consequently on yields. The results showed that the yield of maize can be increased through the reasonable N application (i.e., declining the gap between the recommended N levels and the estimated levels) and suitable irrigation regime (I2). Also, the optimal management of N practices is highly recommended to avoid the loss of the N when there is a deficiency or excessiveness in water supplied to the soil. 


Field capacity, grain yield, maize, N accumulation, N-application, NUE, WUtE

Journal: Journal of Food, Agriculture and Environment
Year: 2014
Volume: 12
Issue: 3&4
Category: Agriculture
Pages: 217-222

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