Physiological basis and application of partial rootzone irrigation in culturing fruit trees
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DOI:10.7606/j.issn.1000-7601.2005.01.42
Key Words: partial rootzone irrigation  physiological basis  fruit trees
Author NameAffiliation
ZOU Yang-jun Recearch Center of Agriculture in the Arid and Semiarid Area,Northwest Sci-Tech University of Agriculture and Forestry,Yangling,Shaanxi 712100,ChinaDepartment of Horticulture,Northwest Sci-Tech University of Agriculture and Forestry,Yangling,Shaanxi 712100,China 
WEI Qin-ping Beijing Institute of Forestry and Pomology,Beijing 100093,China 
LI Jia-rui Department of Horticulture,Northwest Sci-Tech University of Agriculture and Forestry,Yangling,Shaanxi 712100,China 
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Abstract:
      Partial Rootzone Irrigation (PRI) is a novel irrigaing technique which improves water use efficiency when the production does not decrease. The technique requires that about half of the root system is always maintained in a dry or drying condition while the other half of the root system is irrigated. The wetted and dried parts of the root system are alternated after a period of time. The produce and physiological basis of PRI are discussed in this article. The future and problems of PRI in fruit trees culture are also analyzed.