Sthocastic model for estimating potential maize productivity in Piracicaba-SP, Brazil. / Modelo estocástico para estimação de produtividade potencial de milho em Piracicaba - SP.

AUTOR(ES)
DATA DE PUBLICAÇÃO

2004

RESUMO

With the purpose of proposing a stochastic model for estimating potential maize productivity in Piracicaba (SP), as function of mean values of daily air temperature and solar radiation, a software was developed using Visual Basic for Windows, where it was applied for different agro climatic periods (sowing dates). The results allowed the following conclusions: (i) at daily scale, the variables air temperature and solar radiation (periods from 1917 to 2002 and 1978 to 2002, respectively) presented normal distribution; (ii) the normal and triangular (symmetric and asymmetric) distributions can be used in the stochastic model to forecast potential maize productivity; (iii) the software is a tool that allows to estimate the potential maize productivity using the specialist opinion.

ASSUNTO(S)

productivity modelo estocástico distribuição (probabilidade) distribution probability phenology radiação solar milho solar radiation stocastic model fenologia produtividade agrícola maize

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