Data/hora: 22/06/2024 19:45:12

Biblioteca(s): | Embrapa Meio Norte / UEP-Parnaíba.
Data corrente: | 10/05/1996
Data da última atualização: | 10/05/1996
Autoria: | LUTHIN, J. N.; ROBINSON, F.
Título: | Depth of drainage in irrigated areas.
Ano de publicação: | 1969
Fonte/Imprenta: | Transactions of the Asae, v.12, p.27-28, 1969.
Idioma: | Inglês
Conteúdo: | It is common, practice in irrigated areas to specify that drains be ata minimum depth of about 6 ft. This depth of drainage, coupled with proper spacing is supposed to keep the water table deep enough to prevent salts from accumulating in the surface soil layers through capillaryrise from the water table. Eight years of field measurements water tables and soil salinity at the university of California field station inthe Imperial Valley, however, indicate that depth of drainage is influenced by factors besides capillary rise from the water table including: 1. infiltration rate, 2.soil stratifications, 3.salinity of irrigation water. 4.cropping pattern, 5.irrigation practices, 6. hydraulic conductivity...
Thesagro: | Drenagem; Irrigação.
Thesaurus Nal: | drainage; irrigation.
Categoria do assunto: | --
Registro original: | Embrapa Meio Norte / UEP-Parnaíba (CPAMN-UEPP)
Exemplares: | CPAMN-UEPP - (6014-1) - ADP - SP - -- -  -  - 1988.00124 - DIS