MATHEMATICAL DEVELOPMENT OF AN EQUATION FOR THE ESTIMATE OF FIELD CAPACITY

Authors

  • Luiz Fernando Coutinho de Oliveira
  • Robson Bonomo
  • Fernando Cardoso Cortês

Keywords:

Field capacity, irrigation, moisture

Abstract

This work had as objective the mathematical development of an equation for the estimate of the field capacity with base in the process of drainage of water in the profile of the soil after the saturation. For the verification of the proposed mathematical development, an experiment of constituted field of a board of 25 m2 was set up in a latossolo vermelho-escuro. After the saturation of the profile of the soil, it was made the accolmpaniment of internal drainage in the layers of 0-30 cm, 30-60 cm, 60-90 cm and 90-120 cm. The proposed mathematical development was shown appropriate in the estimate of the moisture in the field capacity, allowing like this its use in models of simulation of the movement of water in the soil, since the potential equation that describes the process of drainage of water in the profile presents a good adjustment to the experimental data.

KEY-WORDS: Field capacity; irrigation; moisture.

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Author Biography

Luiz Fernando Coutinho de Oliveira

Escola de Agronomia da Universidade Federal de Goiás. CP 131 - CEP 74001-970. - Goiânia - Goiás.

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Published

2007-11-28

How to Cite

OLIVEIRA, L. F. C. de; BONOMO, R.; CORTÊS, F. C. MATHEMATICAL DEVELOPMENT OF AN EQUATION FOR THE ESTIMATE OF FIELD CAPACITY. Pesquisa Agropecuária Tropical [Agricultural Research in the Tropics], Goiânia, v. 31, n. 1, p. 65–69, 2007. Disponível em: https://revistas.ufg.br/pat/article/view/2531. Acesso em: 22 nov. 2024.

Issue

v. 31, n. 1, Jan./Jun. 2001

Section

Research Article

License

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