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浏览/检索结果: 共2条，第1-2条 帮助 限定条件 学科主题：agriculture     已选(0)清除 条数/页：5101520253035404550556065707580859095100   排序方式：请选择作者升序作者降序题名升序题名降序发表日期升序发表日期降序提交时间升序提交时间降序 Long-term fertilization and manuring effects on physically-separated soil organic matter pools under a wheat-wheat-maize cropping system in an arid region of China 期刊论文 SOIL BIOLOGY & BIOCHEMISTRY, 2010, 卷号: 42, 期号: 2, 页码: 253-259 作者:  Hai, L;  Li, XG;  Li, FM;  Suo, DR;  Guggenberger, G 收藏  |  浏览/下载：5/0  |  提交时间：2015/12/14 Long-term fertilization experiment  Combined particle size and density soil fractionation  Light macro organic fraction  Heavy macro organic fraction  Coarse mineral-associated fraction  Arid region   Crop yield, nitrogen uptake and nitrate-nitrogen accumulation in soil as affected by 23 annual applications of fertilizer and manure in the rainfed region of Northwestern China 期刊论文 NUTRIENT CYCLING IN AGROECOSYSTEMS, 2006, 卷号: 76, 期号: 1, 页码: 81-94 作者:  Yang, SM;  Malhi, SS;  Song, JR;  Xiong, YC;  Yue, WY 收藏  |  浏览/下载：5/0  |  提交时间：2015/12/14 calcaric cambisols  farmyard manure  long-term fertilization  N balance sheet  nitrate-N accumulation  nitrogen  phosphorus  potassium  yield  dryland of China