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Predicting nitrogen fertilizer response in unthinned stands of Douglas‐fir1

 

作者: John Shumway,   W. A. Atkinson,  

 

期刊: Communications in Soil Science and Plant Analysis  （Taylor Available online 1978）
卷期: Volume 9, issue 6  

页码: 529-539

 

ISSN:0010-3624

 

年代: 1978

 

DOI:10.1080/00103627809366828

 

出版商: Taylor & Francis Group

 

关键词: mineralization;nitrogen fertilizer;Douglas‐fir;soil test

 

数据来源: Taylor

 

摘要:

The mineralization potential of forest soils is a useful tool in predicting nitrogen fertilizer response in unthinned stands of Douglas‐fir. As the mineralization potential of the soil increased, diameter growth for 200 lbs/A of added N decreased. Significant growth response could not be detected when mineralizable nitrogen level was above 46 ppm.

 

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