Abdel-Maksoud, H., Othman, S., El-Tawil, A. (2002). IMPROVING WATER AND N-USE UTILIZATION FOR FIELD CROPS VIA LTERNATE- FURROW IRRIGATION ECHNIQUE. 1-MAIZE CROP. Journal of Soil Sciences and Agricultural Engineering, 27(12), 8761-8769. doi: 10.21608/jssae.2002.255935
H. H. Abdel-Maksoud; Sanaa A. Othman; A. Y. El-Tawil. "IMPROVING WATER AND N-USE UTILIZATION FOR FIELD CROPS VIA LTERNATE- FURROW IRRIGATION ECHNIQUE. 1-MAIZE CROP". Journal of Soil Sciences and Agricultural Engineering, 27, 12, 2002, 8761-8769. doi: 10.21608/jssae.2002.255935
Abdel-Maksoud, H., Othman, S., El-Tawil, A. (2002). 'IMPROVING WATER AND N-USE UTILIZATION FOR FIELD CROPS VIA LTERNATE- FURROW IRRIGATION ECHNIQUE. 1-MAIZE CROP', Journal of Soil Sciences and Agricultural Engineering, 27(12), pp. 8761-8769. doi: 10.21608/jssae.2002.255935
Abdel-Maksoud, H., Othman, S., El-Tawil, A. IMPROVING WATER AND N-USE UTILIZATION FOR FIELD CROPS VIA LTERNATE- FURROW IRRIGATION ECHNIQUE. 1-MAIZE CROP. Journal of Soil Sciences and Agricultural Engineering, 2002; 27(12): 8761-8769. doi: 10.21608/jssae.2002.255935
IMPROVING WATER AND N-USE UTILIZATION FOR FIELD CROPS VIA LTERNATE- FURROW IRRIGATION ECHNIQUE. 1-MAIZE CROP
Soil water and Enveronment Research Institute ,ARC
Abstract
Two field experiments were executed at the farm of Gemmeiza Agric. Res. Stn. during 2001and 200 seasons, to find out the extent to which alternate-furrow irrigation technique, affected water and N-utilization for maize crop.
Data revealed significant reductions in applied water, due to conveying the water through alternate- furrow irrigation at, 7 or 14 days interval. Increasing N-rate resulted in increased applied water values, under the adopted irrigation techniques , a similar trend was observed regardless irrigation techniques as well.
Alternate-furrow irrigation , at 14 days interval, seems to decrease the grain yield insignificantly, whereas, under alternate –furrow at 7 days interval, the figure was increased by 14,5%, as compared with every-furrow irrigation. Increasing N-rate gradually increased grain yield value, and this was true under the adopted irrigation techniques , regardless the irrigation effect too.
Water Use Efficiency(WUE) values were improved under alternate-furrow irrigation, either 7 or 14 days interval, comparable to every-furrow irrigation. Increasing N-rate resulted in increased WUE values, either regarding or regardless irrigation techniques. Nitrogen Use Efficiency(NUE) seems to decrease with alternate-furrow irrigation at 14 days interval, while the corresponding value with alternate-furrow irrigation at 7 days interval was increased, compared with every-furrow irrigation. Moreover, NUE was decreased as N-rate increased, this was true under the adopted irrigation techniques ,also regardless them.
Total grain-N%, grain N-uptake, grain N-recovery % and residual soil inorganic-N values, seemed to decrease under alternate-furrow irrigation at 14 days interval, compared to both alternate-furrow with 7 days interval, and every-furrow irrigation techniques. This may be due to less N- availability under the more drier conditions prevailing under such irrigation technique.
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