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

Authors

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

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.

Downloads

Download data is not yet available.

Author Biographies

Adilson Pacheco de Souza, UNESP - Faculdade de Ciências Agronômicas

Engenheiro Agrícola, Mestrando em Irrigação e Drenagem, DCA/FCA, UNESP, Botucatu-SP
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.

Downloads

PDF (Portuguese)

Published

2011-02-16

Issue

Vol. 33 No. 1 (2011)

Section

Agricultural Engineering

License

DECLARATION OF ORIGINALITY AND COPYRIGHTS

I Declare that current article is original and has not been submitted for publication, in part or in whole, to any other national or international journal.

The copyrights belong exclusively to the authors. Published content is licensed under Creative Commons Attribution 4.0 (CC BY 4.0) guidelines, which allows sharing (copy and distribution of the material in any medium or format) and adaptation (remix, transform, and build upon the material) for any purpose, even commercially, under the terms of attribution.

How to Cite

Evapotranspiration, crop coefficients and water use efficiency of the bell pepper crop in different cropping systems - doi: 10.4025/actasciagron.v33i1.5527. (2011). Acta Scientiarum. Agronomy, 33(1), 15-22. https://doi.org/10.4025/actasciagron.v33i1.5527