Drip irrigation provides the salinity control needed for profitable irrigation of tomatoes in the San Joaquin Valley
| Autor: | Donald M. May, J Simnek, Robert B. Hutmacher, Jan W. Hopmans, Blaine R. Hanson |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2009 |
| Předmět: |
Hydrology
Irrigation Soil salinity drip irrigation Irrigation statistics General Engineering lcsh:S Low-flow irrigation systems Drip irrigation lcsh:S1-972 Leaching model salinity lcsh:Agriculture Agronomy Environmental science processing tomatoes lcsh:Agriculture (General) Surface irrigation Soil salinity control Land Air and Water Sciences |
| Zdroj: | Hanson, Blaine R.; May, Don E.; Simunek, Jirka; Hopmans, Jan W; & Hutmacher, Robert B. (2009). Drip irrigation provides the salinity control needed for profitable irrigation of tomatoes in the San Joaquin Valley. California Agriculture, 63(3). Retrieved from: http://www.escholarship.org/uc/item/02h366fx California Agriculture, Vol 63, Iss 3, Pp 131-136 (2009) |
| Popis: | Despite nearly 30 years of research supporting the need for subsurface drainage-water disposal facilities, the lack of these facilities continues to plague agriculture on the San Joaquin Valley's west side. One option for coping with the resulting soil salinity and shallow water-table problems is to convert from furrow or sprinkle irrigation to drip irrigation. Commercial field studies showed that subsurface drip systems can be highly profitable for growing processing tomatoes in the San Joaquin Valley, provided that the leaching fraction can achieve adequate salinity control in the root zone. Computer simulations of water and salt movement showed localized leaching fractions of about 25% under subsurface drip irrigation, when water applications equaled the potential crop evapotranspiration. This research suggests that subsurface drip irrigation can be successfully used in commercial fields without increasing root-zone soil salinity, potentially eliminating the need for subsurface drainage-water disposal facilities. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|