Regulated Deficit Irrigation and Its Several Problems in Practical Use

  • Huanjie Cai (College of Hydraulic and Architectural Engineering, Northwest Agriculture University) ;
  • Shaozhong Kang (College of Hydraulic and Architectural Engineering, Northwest Agriculture University)
  • Published : 2000.06.01


Regulated Deficit Irrigation (RDI) is one of the most important measures for the water-saving and high yield of crops. RDI is based on the crop and water relations. The theories of RDI were analyzed using the experiment data in Shaanxi and Gansu Province. There are several problems of RDI in practical use, which include; the uncertainty of crop-water relations, the proper growth stages and water deficit degree of RDI applied, and the requirements of RDI to irrigation system and irrigation techniques.



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