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Chinese Journal of Applied Ecology ›› 2001, Vol. ›› Issue (3): 405-408.

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Symbiotic effect of cultivating fish in rice field in north China

CAO Zhiqiang, LIANG Zhijie, ZHAO Yixin, DONG Yuhui   

  1. 1. Institute of Agronomy, Shenyang Agricultural University, Shenyang 110161;
    2. Science and Technology Commission, Hebei Province, Shijiazhuang 050034
  • Received:1999-10-21 Revised:1999-12-24 Online:2001-05-25

Abstract: Experiment on rice fish symbiosis in north China showed that the ricce production in rice fish field was a bit higher than control,and the output input ratio of energy,utilization efficiency of solar energy and soil organic matter content increased 0.08,0.1 and 0.24%,respectively.The banded sclerotic blight incidence decreased 3.8% and the net economic income increased 900 RMB yuan per hectare.All the resuts showed that rice fish symbiotic system had a good symbiotic effect.

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