Relationships between relative crop yields, soil test phosphorus levels, and fertilizer requirements for phosphorus1
作者:
D. E. Peaslee,
期刊:
Communications in Soil Science and Plant Analysis
(Taylor Available online 1978)
卷期:
Volume 9,
issue 5
页码: 429-442
ISSN:0010-3624
年代: 1978
DOI:10.1080/00103627809366820
出版商: Taylor & Francis Group
关键词: Soil test calibration; corn;soybean;alfalfa;clover‐grass requirement for P
数据来源: Taylor
摘要:
More uniformity in methods of deriving fertilizer P recommendations from crop response data should improve accuracy and precision of fertilization rates. Experimental data that relate crop yields to soil test levels and describe the effect of fertilizer P on soil test levels provide the basis for determining fertilization rates for specific crop‐soil situations. A modification of the Mitscherlich equation was used in derivation of a new equation for calculating fertilizer P requirements as a function soil test levels of P. The equation was applied to response data for 4 crops.
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