HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS		QUICK SEARCH:   [advanced] Author: Keyword(s): Year:  Vol:  Page:

This Article Full Text (PDF) Alert me when this article is cited Alert me if a correction is posted Services Similar articles in this journal Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via Google Scholar Google Scholar Articles by Jensen, D. Articles by Pesek, J. Search for Related Content PubMed Articles by Jensen, D. Articles by Pesek, J. Agricola Articles by Jensen, D. Articles by Pesek, J.

Generalization of Yield Equations in Two or More Variables: II. Application to Yield Data¹

Synopsis: Restrictive two-variable quadratic equations defining yield as a function of fertilizer inputs for a given soil fertility level were generalized to forms allowing prediction over a range of initial fertility conditions. Coefficients of equations so generalized from separate restrictive equations were found to estimate parameters of the same equation characteristic of a given soil type. Conclusions were based upon results of statistical methods applied to test the similarity of corresponding coefficients of two and three equations.

² Former Graduate Assistant in Soils and Professor of Soils, respectively.

Received for publication May 31, 1958.