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大豆科学  2007 

不同施肥处理对大豆生育期内土壤微生物的影响

DOI: 10.3969/j.issn.1000-9841.2007.06.022, PP. 922-925

Keywords: 大豆,施肥处理,微生物数量,微生物量碳

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Abstract:

研究长期不同施肥处理措施条件下,大豆在不同生育期中土壤细菌数量的动态变化与土壤微生物总数的动态变化之间的关系及其变化趋势。结果表明,土壤细菌数量的动态变化决定土壤微生物总数的动态变化,各处理土壤中细菌总数由花期逐渐增加,结荚期达最大值,到成熟期明显下降。各个时期土壤微生物量碳的变化与土壤细菌数量的变化趋势一致,有机+无机肥可明显提高土壤微生物数量和微生物碳量。

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