Generalization of Yield Equations in Two Variables: III. Application of Yield Data from 30 Initial Fertility Levels1
- Regis Voss and
- John Pesek2
Restrictive second degree polynomial yield equations in N and P for oats grown in the greenhouse at each of 30 different initial fertility levels within one soil type were utilized in the application of a generalization procedure previously proposed in this series. A multiple regression model including N and P fertilizer and soil test levels plus all possible linear interactions gave good evidence that the yields from the different initial fertility levels belonged to the same general yield surface.Please view the pdf by using the Full Text (PDF) link under 'View' to the left.
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