Data/hora: 10/06/2024 16:07:21

Provedor de dados: 	65	
País: 	Brazil	
Título: 	Yield, water use efficiency, and yield response factor in carrot crop under different irrigation depths	
Autores: 	Carvalho,Daniel Fonseca de; Oliveira Neto,Dionizio Honório de; Felix,Luiz Fernando; Guerra,José Guilherme Marinho; Salvador,Conan Ayade.	
Data: 	2016-07-01	
Ano: 	2016	
Palavras-chave: 	Daucus carota; Crop water requirement; Soil water balance; TDR; Organic production.	
Resumo: 	ABSTRACT: The aim of the present study was to evaluate the effect of different irrigation depths on the yield, water use efficiency (WUE), and yield response factor (Ky) of carrot (cv. 'Brasília') in the edaphoclimatic conditions of Baixada Fluminense, RJ, Brazil. Field trials were conducted in a Red-Yellow Argisol in the 2010-2011period. A randomized block design was used, with 5 treatments (depths) and 4 replicates. Depths were applied by drippers with different flow rates, and the irrigation was managed by time domain reflectometry (TDR) technique. The reference (ETo) and crop (ETc) evapotranspiration depths reached 286.3 and 264.1mm in 2010, and 336.0 and 329.9mm in 2011, respectively. The root yield varied from 30.4 to 68.9t ha-1 as a response to treatments without irrigation and 100% replacement of the soil water depth, respectively. Values for WUE in the carrot crop varied from 15 to 31kg m-3 and the mean Ky value was 0.82. The mean values for Kc were obtained in the initial (0.76), intermediate (1.02), and final (0.96) stages. Carrot crop was influenced by different water depths (treatments) applied, and the highest value for WUE was obtained for 63.4% of soil water replacement.	
Tipo: 	Info:eu-repo/semantics/article	
Idioma: 	Inglês	
Identificador: 	http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782016000701145	
Editor: 	Universidade Federal de Santa Maria	
Relação: 	10.1590/0103-8478cr20150363	
Formato: 	text/html	
Fonte: 	Ciência Rural  v.46 n.7 2016	
Fonte: 	info:eu-repo/semantics/openAccess