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cje ›› 2004, Vol. ›› Issue (5): 89-92.

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Effects of fertilization on soil microbe and enzyme activity in Pinus tabulaeformis and Robinia Pseudoacaia mixed forest

WANG Jian1,2, LIU Zuoxin1, CAI Chongguang1   

  1. 1. Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, China;
    2. Agricultural College of Hainan University, Haikou 570228, China
  • Received:2003-11-17 Revised:2004-04-20 Online:2004-10-10

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Abstract: The compared experiment has been conducted to study the effects of fertilization in the soil of Pinus tabulaeformis and Robinia pseudoacaia mixed forest with urea,phosphate ammonium and compound fertilizer to soil microbial population and enzyme activity.The results showed that compound fertilizer and urea significantly improved the population of soil microbe,with an increase of 42.1% and 18.4% respectively during the growth season compared to control.The compound fertilizer improved the population of azotobacter and potassium bacteria,and the phosphate ammonium enhanced the population of phosphobacteria.The enzyme activity of soil was boosted up with significantly seasonal change after treatment with different fertilizers.

Key words: Soil hydrolase, Kinetics, Properties

CLC Number: