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Chinese Journal of Applied Ecology ›› 2001, Vol. 12 ›› Issue (4): 569-572.

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Effect of long-term single application of chemical fertilizer on soil properties and crop yield

Lü Jialong, ZHANG Yiping, WANG Xudong, ZHAO Gaoxia, ZHANG Chunhui   

  1. Northwestern Agricultural University, Yangling 712100
  • Received:1999-02-02 Revised:1999-04-27 Online:2001-07-25 Published:2001-07-25

Abstract: A long-term located experiment showed that single application of chemical fertilizer basically sustained the quantity le- vel of soil organic matter,nitrogen and phosphrous,reduced the energy level of soil humus and inhanced its condensation degree,aromaticity and aging function.The corp yield was basically the same as that of combined application with organic manure.

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