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Chinese Agricultural Science Bulletin ›› 2007, Vol. 23 ›› Issue (8): 520-520.

• 农业工程科学 • Previous Articles     Next Articles

Research Progress on Deficit irrigation Diagnosis Index of Crop

Guo Yanbo,,, Feng Hao,,, Wu Pute,,   

  • Online:2007-08-05 Published:2007-08-05

Abstract: The diagnosis methods of soil and crop moisture deficit are studied for effective deficit irrigation, which could formulate scientific irrigation index. In this paper, the present situation and main problem of index study on soil, irrigation and crop is illustrated, the research directions in deficit irrigation index are also discussed. According to the international study situation, the technique in diagnosis of crop moisture content condition from the changes of leaf water potential, plant stems diameter and canopy surface temperature etc, has gradually been the hotspots in the field of deficit irrigation, but the basic theory, observation method and application on different crops need to be lucubrated and perfected. Therefore, it is not a comprehensive method to confirm the irrigation capacity by using a single irrigation diagnosis index, and how to found the index system of deficit irrigation of different areas and crops will become an important study in the future.

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