MODELS TO ESTIMATE POTENTIAL YIELD OF BEANS AND MAIZE CROPS

Authors

  • Leydimere Janny Cota Oliveira
  • Luiz Cláudio Costa
  • Gilberto Chohaku Sediyama
  • Williams Pinto Marques Ferreira
  • Marcelo Jorge de Oliveira

DOI:

https://doi.org/10.13083/reveng.v19i4.218

Keywords:

Modelo agrometeorológico, balanço de carbono, estimativa de produtividade

Abstract

Climate has significant impact on crop growth and development, and several agro-meteorological models have been used for its quantification. Considering the importance of simple models capable of considering effects of various factors on yield potential, and the absences of data regarding there application under tropical conditions, this work was done to calculate and compare the potential yield of bean and maize crops in the mesoregions of Minas Gerais State. Using daily meteorological data from 1975 to 2004, some process-based models such as Blackman’s equation, the negative exponential, rectangular hyperbole, non-rectangular hyperbole, and the efficient radiation use, were used as the central part to calculate carbon balance in order to estimate yield variability of maize and bean crops. The percent difference between the model predicting highest and the lowest estimates was 105% for bean and 108% for maize crops. The potential yield estimated by these models differed significantly, indicating criteria based choice of the model to be used.

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Published

2011-09-01

How to Cite

Oliveira, L. J. C., Costa, L. C., Sediyama, G. C., Ferreira, W. P. M., & Oliveira, M. J. de. (2011). MODELS TO ESTIMATE POTENTIAL YIELD OF BEANS AND MAIZE CROPS. Engineering in Agriculture, 19(4), 304–312. https://doi.org/10.13083/reveng.v19i4.218

Issue

Vol. 19 No. 4 (2011)

Section

Agricultural Meteorology

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