الفهرس 
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Abstract
Laboratory experiments were carried out at the National Irrigation Laboratory of Agricultural Engineering Research Institute (AEnRI), ARC, Dokki, Giza to test the performance of trickle irrigation. The emitters were tested and calibrated under different operating pressure (0.50, 0.75, 1.00 and 1.25bar). The emitter flow variation and emission uniformity and coefficient of variations were calculated. In sandy soils deep percolation and decrease in retention of moisture, compost condoner, rice straw and polymer were added where by improve the physical properties of soil for keep water along time. This study was done for management of maize crop in sandy soil with three types of emitters ( Built in GR, antiroot GR and T-tape). While field experiments were carried out during the agricultural season 2014/2015 at El-Husien farm in Alexandria-Cairo desert road. In harvest stage corncobs were counted in all lines and weighted to know the yield.Compost
condioner, rice straw and polymer were added to improve the physical properties of soil for keep water along time.
The Conclusions were:
1. The best treatment was using compost with antiroot GR emitters and sub-surface dripsystem.
2. Using compost with T-tape sub-surface drip system give good yield but, using compost with antiroot GR sub-surface drip system give bestone.
3. Using polymer with antiroot GR sub-surface drip system give the lowest value ofyield.