Evapotranspiration and crop coefficients of corn in monoculture and intercropped with jack bean

Author:

Araújo Mário S. P. de1,Sousa Elias F. de1,Pereira Vinícius R.2,Ferreira Fernando H. A.2,Carvalho Daniel F. de2

Affiliation:

1. Universidade Estadual do Norte Fluminense “Darcy Ribeiro”, Brazil

2. Universidade Federal Rural do Rio de Janeiro, Brazil

Abstract

ABSTRACT This study was carried out to determine the evapotranspiration (ETc) and crop coefficients (Kc) for four stages of “Caatingueiro” corn under the climate condition of Seropédica, RJ, Brazil, using weighing lysimeters. The field trial occurred in 2015, from March 18 to June 25, in two areas cultivated with “Caatingueiro’ corn intercropped with jack bean and in monoculture. The reference evapotranspiration (ETo) was estimated by the FAO-56 Penman-Monteith model and the Kc values were determined by the ratio between ETc and ETo. The Kc values obtained for the intercropping and monoculture systems, were respectively: 0.78 (I); 1.01 (II); 1.10 (III) and 1.01 (IV), and 0.62 (I); 0.92 (II); 1.27 (III) and 0.81 (IV), and they were different from the values presented by FAO.

Publisher

FapUNIFESP (SciELO)

Subject

Agronomy and Crop Science,Environmental Engineering

Reference19 articles.

1. Crop evapotranspiration - Guidelines for computing crop water requirements;Allen R. G.,1998

2. Evaluation of jatropha (Jatropha curcas) and castor (Ricinus communis) cake as a source of nutrient and soil amendment in spring sunflower (Helianthus annuus) - maize (Zea mays) sequence;Bodake P. S.;Indian Journal of Agronomy,2009

3. Improving intercropping: A synthesis of research in agronomy, plant physiology and ecology;Brooker R. W.;New Phytologist,2015

4. Demanda hídrica do milho de cultivo de inverno no Estado do Rio de Janeiro;Carvalho D. F.;Revista Brasileira de Engenharia Agrícola e Ambiental,2006

5. Instalação, calibração e funcionamento de um lisímetro de pesagem;Carvalho D. F.;Engenharia Agrícola,2007

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