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cje ›› 1993, Vol. ›› Issue (6): 11-16.

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Study on Productivity of Irrigated Stereoscopic Multiple-Cropping Ecosystems in Mountainous Area of Southern Ningxia

Du Shouyu1, Tian Enping2, Wang Zhanshan2   

  1. 1. Celleral Station of Agricultural Technique Extension of Ningxia, Yinchuan 750001;
    2. Agricultural Technique Extension Center of Cuyuan county, 756000
  • Received:1992-07-08 Revised:1992-10-12 Online:1993-12-10

Abstract: The various cropping ecosystems are assessed comprehensively for benefit by the analysis of Hierarchical procedure and the expected beneficial value of wheat/com cropping systern is the highest among the three cropping ecosystems.The paper not only analyses the possibility and necessity of developing the stereo multiple-cropping ecosystems on mountainoiis area with local irrigation condition but also puts forwards suitable popularizing belt in link with their different planting model tralt.

Key words: RumexK-1, salicylhydroxamic acid, mitochondrial alternative oxidase pathway, photoinhibition, photoprotection.