CONSTRUCTION OF MATHEMATICAL MODELS TO SIMULATE YIELD DATA IN FERTILIZER TRIALS.

Adhemar SANCHES[1]

§ ABSTRACT: Techniques are given to obtain mathematical models as the polynomial quadratic and the polynomial with square root with one and more variables, under some prefixed conditions. The polynomial with square root model is obtained by a change of variables in a polynomial quadratic models, also obtained under specified conditions. It is given theorem that guarantee the desirable conditions for the polynomial with square root model.

§ KEYWORDS: Yield function; simulation; fertilizer trial.

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[1] Departamento de Ciências Exatas da Faculdade de Ciências Agrárias e Veterinárias - UNESP- 14870-000 - Jaboticabal – SP. Pesquisador Científico do CNPq.