|Author:||Abd El-Warth, M.|
|Book Group Author:||NA|
To compare the performance of surface and subsurface drip irrigation system with saline irrigation water, field experiments were carried out at some farms in El-Gebeel, south Sinai, Egypt. Tomato plants (Lycopersicon esculentum cv. G.S.) were transplanted and irrigated with irrigation water of four salinity levels: 1.90, 3.98, 6.20 and 10.00 dS m-1, which are dominant in this area. Fresh water was used as a control (0.88 dSm-1). Results obtained indicated that the rate of salt accumulation in the first layer (0-20 cm) was relatively higher in soil irrigated using subsurface drip system than that under surface drip irrigation system. Moreover, the second layer had relatively low value of salt accumulation under subsurface drip irrigation system compared with surface drip irrigation. Tomato yield decreased in the successive seasons under salt stress, but under subsurface drip irrigation the decrease in yield was lower than that under surface drip irrigation. Thus, subsurface drip irrigation may enhance the commercial yield compared to surface drip irrigation. Water use efficiency was significantly reduced with increasing irrigation water salinity. Water use efficiency was higher in subsurface drip irrigation system compared with that in surface drip irrigation.
|Pages:||1341 - 1355|
|Journal:||Annals of Agricultural Science, Moshtohor|
crop yield, irrigation water, plant water relations, salinewater, salinity, salts in soil, soil salinity, stress, subsurfaceirrigation, surface irrigation, tomatoes, trickle irrigation, water useefficiency, Egypt, Lycopersicon esculentum, North Africa, Africa,Mediterranean Region, Middle East, Developing Countries, Lycopersicon,Solanaceae, Solanales, dicotyledons, angiosperms, Spermatophyta, plants,salt water, Soil Water Management (Irrigation and Drainage) (JJ800)(Revised June 2002) [formerly Soil Water Management], HorticulturalCrops (FF003) (New March 2000), Plant Water Relations (FF062), PlantProduction (FF100), Soil Chemistry and Mineralogy (JJ200)