| Abstract: | Nitrification in soils A literature review is given on the biology of nitrifying organisms, the nitrification process in soil and factors influencing nitrification in soil with special reference to the following aspects: - 1 Importance of nitrification in the nitrogen cycle.
- 2 Biology of nitrifying micro-organisms.
- 2.1 Chemolithotrophic bacteria and heterotrophic micro-organisms.
- 2.2 Physiology and biochemistry of nitrifying micro-organisms: gain of energy, specifity and concentration of substrate, influence of soil reaction.
- 3. Methods for the measuring nitrification in soil.
- 3.1 Experiments for the determination of nitrification.
- 3.2 Calculation of the nitrification process.
- 4. The course of nitrification in different soils.
- 4.1 Rate of nitrification.
- 4.2 Influence of various environments: soil reaction, temperature, oxygen and water content.
- 4.3 Effect of soil organic matter and vegetation.
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