SciELO - Scientific Electronic Library Online

 
vol.33 número1Fungigação por gotejamento no controle da pinta preta do tomateiroModelos agro-meteorológicos na estimativa da produtividade da cultura da soja na região de Ponta Grossa, Estado do Paraná índice de autoresíndice de assuntospesquisa de artigos
Home Pagelista alfabética de periódicos  

Serviços Personalizados

Journal

Artigo

Indicadores

Links relacionados

Compartilhar


Acta Scientiarum. Agronomy

versão On-line ISSN 1807-8621

Resumo

SOUZA, Adilson Pacheco de et al. Evapotranspiration, crop coefficients and water use efficiency of the bell pepper crop in different cropping systems. Acta Sci., Agron. (Online) [online]. 2011, vol.33, n.1, pp.15-22. ISSN 1807-8621.  https://doi.org/10.4025/actasciagron.v33i1.5527.

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.

Palavras-chave : irrigation management; no tillage; Capsicum annum L.

        · resumo em Português     · texto em Português     · Português ( pdf )

 

Creative Commons License Todo o conteúdo deste periódico, exceto onde está identificado, está licenciado sob uma Licença Creative Commons