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Impact of Long-Term Alfalfa Cropping on Soil Potassium Content and Clay Minerals in a Semi-Arid Loes
[期刊论文] 作者：B.VELDE,,
来源：Pedosphere 年份：2011
Alfalfa cropping has been considered an efficient method of increasing soil fertility.Usually nitrogen increase in root nodules is considered to be the major be...
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