Impact of Long-Term Alfalfa Cropping on Soil Potassium Content and Clay Minerals in a Semi-Arid Loess Soil in China

Alfalfa cropping has been considered an efficient method of increasing soil fertility. Usually nitrogen increase in root nodules is considered to be the major beneficial effect. A 21-year time series （five sampling periods） of alfalfa cultivation plots on a loess soil, initially containing illite an...

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Veröffentlicht in:	Pedosphere 2011-08, Vol.21 (4), p.522-531
Hauptverfasser:	LI, De-Cheng, VELDE, B., LI, Feng-Min, ZHANG, Gan-Lin, ZHAO, Ming-Song, HUANG, Lai-Ming
Format:	Artikel
Sprache:	eng
Schlagworte:	illite prairie soil soil fertility 中国西北 半干旱 土壤钾含量 土壤钾素 粘土矿物 紫花苜蓿 裁剪 黄土
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