<b>Water use and crop coefficient for hybrid DKB 390</b> - DOI: 10.4025/actasciagron.v31i3.379

  • Euro Roberto Detomini USP
  • Luiz Fernando Druzina Massignan USP
  • Paulo Leonel Libardi USP
  • Durval Dourado Neto USP
DOI: https://doi.org/10.4025/actasciagron.v31i3.379
Keywords: Zea mays, evapotranspiration, nitrogen, biomass, Kc, maize

Abstract

This work aims to characterize the water use of maize hybrid DKB 390 under suitable conditions of irrigation for both sufficient and below-optimal situations of nitrogen supply. Crop coefficient values for different stages are also presented as a result, in order to provide the basis for crop water budget and management throughout the cycle. A field experiment was carried out during the main season, in which biomass, soil moisture, leaf area, climate data and light transmittance were evaluated. These have allowed deriving water balance, use and efficiency. The mentioned genotype requires around 600 mm for high yield targets, being less efficient when led under below-optimal nitrogen fertilization.

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Author Biography

Euro Roberto Detomini, USP
possui graduação em Engenharia Agronômica pela Escola Superior de Agricultura "Luiz de Queiroz" / Universidade de São Paul (2000) e mestrado em Fitotecnia pela Escola Superior de Agricultura "Luiz de Queiroz" / Universidade de São Paul (2004) . Tem experiência na área de Agronomia , com ênfase em Agrometeorologia
Published
2009-06-23
How to Cite
Detomini, E. R., Massignan, L. F. D., Libardi, P. L., & Dourado Neto, D. (2009). <b>Water use and crop coefficient for hybrid DKB 390</b&gt; - DOI: 10.4025/actasciagron.v31i3.379. Acta Scientiarum. Agronomy, 31(3), 445-452. https://doi.org/10.4025/actasciagron.v31i3.379
Issue
Vol 31 No 3 (2009)
Section
Crop Production

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2.0
2019CiteScore
 
 
60th percentile
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