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土壤微生物的测定方法丨卡文思检测
当向土壤中加入精氨酸水溶液,并培养一段时间后,土壤中的NH4*-N大量增加,通过测定浸提液中NH4-N的含量,就可以估计土壤微生物量。浸提液中残留的精氨酸将干扰铵的比色分析,应尽量减少其用量,培养时间以2小时为宜。当土壤中含有大量易分解有机物质时 ...
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