Data/hora: 11/06/2024 10:08:00

Provedor de dados: | 86
País: | Brazil
Título: | Effect of soil-water tension on herbaceous cotton yield
Autores: | Oliveira,Francisco Assis de; Campos,Tarcísio Gomes da Silva; Oliveira,Bernardete Campos.
Data: | 1999-10-01
Ano: | 1999
Palavras-chave: | Gossypium hirsutum; Available water; Irrigation.
Resumo: | A field experiment was conducted during two years, 1990/91, in an alluvial soil, in the State of Paraíba, Brazil, to study the effect of the levels of soil-water tension, 50, 100, 200, 300, 400 and 600 kPa, at 20 cm depth, on upland cotton (Gossypium hirsutum L.r. latifolium Hutch, cv. CNPA-6H) yield. The experimental design was a complete randomized block with six treatments and four repetitions. There was an effect of the treatments on plant height, leaf area index and cotton yield, but the precocity index was not modified. Water should be applied when the soil-water tension, measured at 20 cm depth, reaches values around 200 kPa. There was a quadratic (R² = 0.893**) response of cotton yields to soil water tension, with the maximum when water was applied at 52% of soil water depletion.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X1999001000018

Editor:

Embrapa Secretaria de Pesquisa e Desenvolvimento

Pesquisa Agropecuária Brasileira

Relação: | 10.1590/S0100-204X1999001000018
Formato: | text/html
Fonte: | Pesquisa Agropecuária Brasileira  v.34 n.10 1999
Fonte: | info:eu-repo/semantics/openAccess