Plant and Soil

, Volume 43, Issue 1–3, pp 649–662 | Cite as

Biological immobilization and chemical fixation of native and fertilizer phosphorus in soil

  • Subrata Ghoshal


Incubation and Neubauer experiments evidently indicated the process of phosphorus transformation in soil to be partly biological. The relationships between biological immobilization and chemical fixation of phosphorus in soils under aerobic conditions have been carefully studied.

The concentration of phosphate ions in the soil solution is influenced by the rate and extent of immobilization and of reaction with the clay-mineral fraction of soils. In turn, the rate and extent of biological turnover is governed by the type and amount of available energy material present at the site of decomposition, whereas the chemical fixation and release of phosphate is regulated by soil reaction and by the native content of clay minerals in the soil.


Phosphate Clay Phosphorus Immobilization Plant Physiology 
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Copyright information

© Martinus Nijhoff 1975

Authors and Affiliations

  • Subrata Ghoshal
    • 1
  1. 1.Department of Soil Fertility, Institute of Soil ScienceRoyal Agricultural CollegeUppsala 7Sweden

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