关键词: 作物耐盐性, 盐水灌溉, 滴灌, 灌溉管理

Abstract: Salinity affects crop growth and yield in a variety of ways included four main categories :effect on water relationships, ion toxicities, nutritional effects, and effects on energy balances,There are different salt hardinesses depend on crop varying, and salt sensitive stages for particular crop. To against salt stress, it is necessary to select salt tolerant cutivars. to detect sensitive stages for special varieties, and to manage irrigation especially with high frequency for water deficiency and washing salinity and to keep good areration in root zones. For salt agriculture, sand land is better than heavier soils. drip irrigation is the best one of the water supply methods. Increased salinity of irrigation water can be reduced generally with growth, for some varieties it may compensate for the reduction in fresh yield in a sense,i.e. salinity improves the qualities of the production .

Key words: Salt tolerance, Saline water irrigation, Drip irrigation, Irrigation management