R. M. El-Shahawy

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In this work, a simple, safe and rapid method for enumerating nitrifying bacteria was used as an alternative to traditional harmful chemical methods. The enumeration of nitrifying bacteria was based upon the change of color of the growth media containing pH indicators in response to acid production during nitrification. The oxidation of ammonia to strong(More)
Five soils, representing different locations in Egypt that vary in their climatic conditions, were studied for their nitrifying capacity under different temperature levels. The optimum temperature was 30 degrees C, followed by 20 degrees C. At both temperatures no differences among soils in their nitrifying capacity were observed, and nitrification(More)
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