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MODIFICATION OF GRAHAM'S METHOD FOR DETERMINING SOIL ORGANIC MATTER BY COLORIMETRIC ANALYSIS

 

作者: R. CAROLAN,  

 

期刊: Soil Science  (OVID Available online 1948)
卷期: Volume 66, issue 4  

页码: 241-248

 

ISSN:0038-075X

 

年代: 1948

 

出版商: OVID

 

数据来源: OVID

 

 

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