|Author:||El-Nady, M. A. ; Borham, T. I.|
|Book Group Author:||NA|
A field experiment was conducted in Giza, Egypt, during the 2008 season, to investigate the effect of skipping irrigation water on some maize growth stages with the application of surface cover on grain yield, some yield attributes and water use efficiency (WUE). Five irrigation treatments were applied, i.e. control treatment (T1), skipping irrigation at the vegetative stage (T2), grain filling stage (T3), during both vegetative and grain filling stages (T4) and after every irrigation event throughout the crop growth period (T5). Results showed that skipping irrigation was combined with a reduction in yield components and yield. The highest and lowest reductions in the yield were recorded with T5 and T2, respectively, compared to T1. Water deficit during vegetative stage had little effect on yield components and grain yield of maize. Mulched soil increased maize yield and its components compared to the unmulched one. Seasonal water evapotranspiration (ETa) was affected by skipping irrigation. The control (T1), recorded the highest ETa value, while T5 recorded the lowest one. Mulching reduced ETa and increased WUE. The highest WUE was achieved with T4, followed by T4 and T5 under unmulched and mulched soil compared to T1. Mulch enhanced the WUE compared to the unmulched one at all studied growth stages.
|Pages:||226 - 233|
|Journal:||Bulletin of Faculty of Agriculture, Cairo University|
crop yield, evapotranspiration, irrigation, maize, mulches,mulching, plant water relations, water use efficiency, yield components,Egypt, Zea mays, North Africa, Africa, Mediterranean Region, MiddleEast, Developing Countries, Zea, Poaceae, Cyperales, monocotyledons,angiosperms, Spermatophyta, plants, eukaryotes, corn, mulchingmaterials, watering, Field Crops (FF005) (New March 2000), Plant WaterRelations (FF062), Plant Production (FF100), Soil Water Management(Irrigation and Drainage) (JJ800) (Revised June 2002) [formerly SoilWater Management], Soil Management (JJ900)