introduction: more plains of iran are located in arid and semi-arid regions and so agricultural production systems depend heavily on water. recently, the reduction of water resources has become a serious threat for crop production such as cotton planting. therefore, application of low irrigation methods can be an appropriate method to cope with mentioned condition. in addition, it is vital to i...

Currently accepted pedotransfer functions show negligible effect of management-induced changes to soil organic carbon (SOC) on plant available water holding capacity (?AWHC), while some studies the ability substantially increase ?AWHC through management. The Soil Health Institute's North America Project Evaluate Measurements measured content at field using intact cores across 124 long-term rese...