Micro organisms nitrogen cycle

The main input of labile N is in the form of plant litter which can be readily utilized by soil microbes. The manner in which soil micro-organisms utilize and transform this nitrogen, whether by anabolism or catabolism, is discussed briefly in this chapter. The series of transfomations can be readily understood by reference to the "Nitrogen Cycle" and,as will be appreciated later, transfoinnations can be purely chemical in addition to... 

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