Data/hora: 17/06/2024 16:28:08

Biblioteca(s): | Embrapa Meio Norte / UEP-Parnaíba.
Data corrente: | 21/06/1996
Data da última atualização: | 21/06/1996
Autoria: | WIDTSOE, J. A.; McLAUGHLIN, W. W.
Título: | The movement of water in irrigated soils.
Ano de publicação: | 1912
Fonte/Imprenta: | Utah: Utah Agricultural College Experiment Station, 1912.
Idioma: | Inglês
Conteúdo: | 1. The soil on which the work herein was done, was very deep and very uniform in physical and chemical composition. The results obtained apply primarily to such soils, which are characteristic of the arid and semi-arid regions.                                                     2. The work was done under cropped field conditions, and under true irrigation conditions, which means that only immediately after an irrigation was any part of the soil saturated.                              3. The water used was exceedingly pure, containing less than 375 partsof dissolved substances in one million parts of water.                4. The maximum amount of water held by the Greenville soil, against gravity under field conditions, was about 23 per cent (on dry        basis).                                                               5. The minimum amount of water held by the soil under field conditionswas above 8 per cent, except that the soil of the top foot dried out to 5,64 per cent.                                                      6. Irrigation was needed whenever the soil moisture fell below 12 per cent...
Palavras-Chave: | Movement.
Thesagro: | Água; Movimento; Solo.
Thesaurus Nal: | soil; water.
Categoria do assunto: | --
Registro original: | Embrapa Meio Norte / UEP-Parnaíba (CPAMN-UEPP)
Exemplares: | CPAMN-UEPP - (6508-1) - ADP - SP - -- -  -  - 1991.04012 - DIS