Influencing factors of organism-nitrogen in the field s oil were studied by the field experiment in moderate fertilizer red-soil of Yan gling. The results showed the contents of organism-nitrogen varied under differ ent seasons,in autumn and spring were higher,in early winter was moderate and in severe winter was the lowest, which conform to the regulation of water content and soil temperature. Nitrogen manure and organic manure had positive influence s on rape and wheat, but they don't comply with plea...
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