DINÂMICA DO POTÁSSIO, CLORO E FÓSFORO EM SOLO DA REGIÃO DO SUBMÉDIO DO VALE DO RIO SÃO FRANCISCO

Authors

DOI:

https://doi.org/10.15809/irriga.2021v26n2p315-327

Abstract

The objective was to measure the miscible displacement of potassium ions the displacement of potentiometer, chlorine and phosphorus ions in columns filled with typical Dystrophic Yellow Argisol (PAd) at different densities, using as an additional alternative for numerical adjustment of the Breakthrough Curves (BTC), mathematical model STANMOD (STudio of analytical models). The tests were made in the Irrigation Laboratory at UNIVASF, Campus Juazeiro-B. It was used PVC columns with different depths (heights) 0,10; 0,20 e 0,30 m and 1000 mg L-1 concentration solution containing Potassium Chloride (58% de K2O e 39% de Cl) and Simple Superphosphate fertilizers (8% P2O5, 16% Calcium (Ca) and 8% Sulfur (S)). It was possible conclude that the potentiometer, chlorine and phosphorus can suffer a mobility in the typical Dystrophic Yellow Argisol (PAd), presenting a smaller value of the delay factor (R) and a larger number of Peclet (P). The STANMOD model presented satisfactory performance in numerical adjustment of BTCs.

Author Biography

Pedro Robinson Fernandes de Medeiros, UNIVASF

Pedro Róbinson Fernandes de Medeiros possui graduação em Engenharia Agronômica pela Universidade Federal Rural do Semi-Árido (2006), Mestrado em Agronomia na área de Irrigação e Drenagem pela Universidade de São Paulo (2008), Doutorado em Ciências na área de Irrigação e Drenagem pela Universidade de São Paulo (2010) e Pós-Doutorado pela Universidade Federal Rural de Pernambuco (2011). Tem experiência na área de Engenharia Agronômica e Engenharia Agrícola com ênfase em movimento da água no solo, sistemas de irrigação, física do solo, salinidade do solo e da água, atuando principalmente em projetos que visam avaliar o efeito da salinidade provocada por fertirrigação sobre as plantas.

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Published

2021-06-30

How to Cite

MEDEIROS, P. R. F. de; FERREIRA, M. da S.; MIRANDA, J. H. de .; GUIMARÃES, M. J. M.; BARROS, A. C. .; UYEDA, C. A. DINÂMICA DO POTÁSSIO, CLORO E FÓSFORO EM SOLO DA REGIÃO DO SUBMÉDIO DO VALE DO RIO SÃO FRANCISCO. IRRIGA, [S. l.], v. 26, n. 2, p. 315–327, 2021. DOI: 10.15809/irriga.2021v26n2p315-327. Disponível em: https://energia.fca.unesp.br/index.php/irriga/article/view/3929. Acesso em: 19 may. 2024.

Issue

Vol. 26 No. 2 (2021): Irriga

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Artigos

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