ABSTRACT
Arid zones receive inadequate and irregular precipitation to accomplish leaching of salts originally presentinthesoilprole.Normallywhentheprecipitationismorethan1000mmperannum, salinityshouldnotdevelop.Thisisnotthecaseinaridzones;therefore,saltsaccumulateinsoils. Saltbuildupinconcentrationsdetrimentaltoplantgrowthisaconstantthreatinirrigatedcrop production.
