Plant and Soil

, Volume 66, Issue 2, pp 265–269 | Cite as

Effect of plant growth and addition of plant residues on the phosphatase activity in soil

  • R. C. Dalal
Short Communications

Summary

The phosphatase activity of the soil amended with roots and tops of clover (Trifolium repens) plant material (0.1% by weight) remained essentially constant in the absence of growing plants but changed considerably in the presence of plants (Avena sativa) grown for 10 weeks. There was a significant relationship between the phosphatase activity and organic and inorganic P in the soil solution only in the presence of growing plants. The differences in phosphatase activity between roots and tops amended soil were attributed to total C as well as differences in the degree of availability of C added through plant materials. This may also apply to the carpet grass (Axonopus affinis) amended soil.

Key words

Avenasativa Axonopus affinis Carpet grass Clover Oats Phosphatase Plants Soil inorganic P Soil organic P Trifolium repens 

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Copyright information

© Martinus Nijhoff/Dr W. Junk Publishers 1982

Authors and Affiliations

  • R. C. Dalal
    • 1
  1. 1.University of New EnglandArmidaleAustralia

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