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  5. Crop yield,soil organic carbon,phosphorus and potassium as affected by tillage and direct drilling

Crop yield,soil organic carbon,phosphorus and potassium as affected by tillage and direct drilling

来源 :第20届国际土壤与耕作研究组织大会 | 被引量 : 0次 | 上传用户：qiufeng115
【摘 要】
：
The aim of this paper is to summarize the results of investigation in a 31-years old direct drilling trial in western Sweden.The investigation included crop yield,soil organic carbon(org-C),phosphorus
【作 者】
：
A.Etana A. Keller K. Rydberg T. Arvidsson A. 
【机 构】
：
Swedish University of Agricultural Sciences,Department of Soil and Environment,P.O.Box 7014,750 07 U
【出 处】
：
第20届国际土壤与耕作研究组织大会
【发表日期】
：
2015年7期
【关键词】
：
Soil organic carbon stratification Nutrient stratification 
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　　The aim of this paper is to summarize the results of investigation in a 31-years old direct drilling trial in western Sweden.The investigation included crop yield,soil organic carbon(org-C),phosphorus(P)and potassium(K)content of the soil.The treatments comprised: conventional tillage(A); direct drilling with occasional ploughing(B)and direct drilling(C).
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