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Economics of p fertilization of two soybean varieties at Jabalpur, M.P., India

 

作者: W. M. Walker,   T. Hymowitz,   S. C. Jethmalani,   BruceL. Brooks,  

 

期刊: Communications in Soil Science and Plant Analysis  （Taylor Available online 1971）
卷期: Volume 2, issue 4  

页码: 293-300

 

ISSN:0010-3624

 

年代: 1971

 

DOI:10.1080/00103627109366317

 

出版商: Taylor & Francis Group

 

关键词: First derivate;price ratio;quadratic equation

 

数据来源: Taylor

 

摘要:

An economic interpretation was applied to a soybean yield prediction equation derived from data obtained in an experiment at Jabalpur, M.F. It was shown that no level of applied P could substitute for variety selection in terms of either soybean yield or economic returns per ha. Illustrative examples of the minimum price that must be obtained for soybeans before it is profitable to use P fertilizer for given price situations were shown.

 

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