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cje ›› 1995, Vol. ›› Issue (4): 41-47.

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Classification of Agroecological Patterns in Huanghuaihai Area

Qi Xinshan, Hu Jingan   

  1. Agro-Environmental Proiection and Monitoring Siation of Shandong Province, Jinan 250100
  • Received:1994-03-09 Revised:1994-06-30 Online:1995-08-10

Abstract: Based on an overall discussion of classification metheds and principles of Chinese agroecologicalpatterns,and using the methed of 4-grade classification, a preliminary classification scheme andcharacteristics of agroecological patterns in Huanghuaihai area were illustrated in this paper.

Key words: alfalfa, nitric oxide, salt stress, nitrogen metabolism.