Evapotranspiração, coeficientes de cultivo e eficiência do uso da água da cultura do pimentão em diferentes sistemas de cultivo - doi: 10.4025/actasciagron.v33i1.5527

Adilson Pacheco de Souza; João Batista Alves Pereira; Leonardo Duarte Batista da Silva; José Guilherme Marinho Guerra; Daniel Fonseca de Carvalho

doi:10.4025/actasciagron.v33i1.5527

Evapotranspiration, crop coefficients and water use efficiency of the bell pepper crop in different cropping systems - doi: 10.4025/actasciagron.v33i1.5527

Adilson Pacheco de Souza UNESP - Faculdade de Ciências Agronômicas
João Batista Alves Pereira EMATER - RJ
Leonardo Duarte Batista da Silva ufrrj
José Guilherme Marinho Guerra CNPAB
Daniel Fonseca de Carvalho UFRRJ

DOI: https://doi.org/10.4025/actasciagron.v33i1.5527

Keywords: irrigation management, no tillage, Capsicum annum L.

Abstract

The objective of this study was to determine the crop evapotranspiration (ETc), crop coefficients (kc) and water-use efficiency (EUA) of the bell pepper crop in the no till system (PD) and conventional tillage system (PC), in the Fluminense Valley, Rio de Janeiro State, Brazil. The irrigation was managed and the evapotranspiration demand quantified by calculating the daily soil water balance using the TDR technique and data collected in an automatic meteorological station. It was verified that the accumulated ETc at 181 days after planting (DAT) was 363 and 335 mm for PD and PC, respectively. The kcs obtained were 0.32, 1.18 and 0.77 and 0.34, 1.05 and 0.86, for the PD and PC systems, respectively, in the initial (0-40 DAP), middle (81-120 DAP) and final (181 DAP) growth phases, respectively. The kc values for the bell pepper crop presented by FAO were similar to the values found for the PC, but are not recommended for PD. Considering the total depth applied (rain and irrigation), the average values of water use efficiency were 3.9 and 4.5 kg m^-3 for PD and PC, respectively.

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Author Biographies

Adilson Pacheco de Souza, UNESP - Faculdade de Ciências Agronômicas

Eepartamento de Ciências Ambientais Faculdade de Ciências Agronômicas Area de Agrometeorologia e Agricultura Orgânica http://buscatextual.cnpq.br/buscatextual/visualizacv.jsp?id=T416437

João Batista Alves Pereira, EMATER - RJ

Agrônomo. Mestre em Fitotecnia pela UFRRJ. Técnico da EMATER-RIO. Saquerema-RJ

Leonardo Duarte Batista da Silva, ufrrj

Prof. Associado I, DE / IT / UFRRJ, Seropédica-RJ.

José Guilherme Marinho Guerra, CNPAB

Pesquisador da EMBRAPA-Agrobiologia, Bolsista CNPq, BR 465, km 7. Seropédica-RJ

Daniel Fonseca de Carvalho, UFRRJ

Prof. Associado I, DE / IT / UFRRJ, Bolsista CNPq, Seropédica-RJ.

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Published

2011-02-16

How to Cite

Souza, A. P. de, Pereira, J. B. A., Silva, L. D. B. da, Guerra, J. G. M., & Carvalho, D. F. de. (2011). Evapotranspiration, crop coefficients and water use efficiency of the bell pepper crop in different cropping systems - doi: 10.4025/actasciagron.v33i1.5527. Acta Scientiarum. Agronomy, 33(1), 15-22. https://doi.org/10.4025/actasciagron.v33i1.5527

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Issue

Vol 33 No 1 (2011)

Section

Agricultural Engineering

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