Data/hora: 12/06/2024 01:04:28

Provedor de dados: | 91
País: | Brazil
Título: | Soil water extraction by roots and Kc for the coffee crop
Autores: | Silva,Adriana L. da; Bruno,Isabeli P.; Reichardt,Klaus; Bacchi,Osny O. S.; Dourado-Neto,Durval; Favarin,José L.; Costa,Flávio M. P. da; Timm,Luis C.
Data: | 2009-06-01
Ano: | 2009
Palavras-chave: | Perenial crop; Soil water storage; Water balance.
Resumo: | Basic information for a rational soil-water management of the coffee crop is still insufficient, particularly under irrigated conditions. Of great importance for the estimation of water requirements of coffee crops are their root distribuition and evapotranspiration crop coefficients. This study compares soil water extraction by roots of coffee plants of the variety "Catuaí Vermelho" (IAC-44), grown in Piracicaba, SP, Brazil, 3 to 5 years old, with direct measurements of root dry matter, showing a good agreement between both approaches, and confirming that most of the root system is distributed in the top soil layer (0-0.3 m) and that less than 10% of the root system reaches depths greater than 1.0 m. Calculated evapotranspiration crop coefficients are in agreement with those found in the literature, with an average of 1.1, independent of shoot dry matter, plant height and leaf area index.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662009000300006
Editor: | Departamento de Engenharia Agrícola  - UFCG
Relação: | 10.1590/S1415-43662009000300006
Formato: | text/html
Fonte: | Revista Brasileira de Engenharia Agrícola e Ambiental  v.13 n.3 2009
Fonte: | info:eu-repo/semantics/openAccess