eprintid: 187 rev_number: 12 eprint_status: archive userid: 1 dir: disk0/00/00/01/87 datestamp: 2010-11-20 21:51:00 lastmod: 2017-03-07 23:03:51 status_changed: 2010-11-20 21:51:00 type: article metadata_visibility: show item_issues_count: 0 creators_name: Wright, James L. title: Way Sought to Measure Irrigation Water Needs ispublished: pub subjects: efficiency subjects: autoclass divisions: d_unclass abstract: As the demand for water and the cost of irrigation continue to increase, agriculture must increase its efficiency of water use. As farms become larger and skilled irrigators more scarce, good irrigation water management becomes more difficult. Even though scientific research has developed many principles that can greatly improve irrigation water management, determining when to irrigate has not changed significantly. A solution to this need is a method of determining how much water is used each day in plant transpiration and soil evaporation from easily obtainable meteorological data. The sum of evaporation and transpiration is commonly called evapotranspiration. At the Snake River Conservation Research Center, we are developing such procedures from studies of evapotranspiration as related to weather conditions, the type of crop, the amount of plant growth, the stage of growth, and the wetness of the soil surface. date: 1971 date_type: published id_number: 0170 full_text_status: public publication: Crops and Soils Magazine volume: 23 number: 9 pagerange: 20-211 refereed: unknown citation: Wright, James L. (1971) Way Sought to Measure Irrigation Water Needs. Crops and Soils Magazine. 23(9):20-211. document_url: https://eprints.nwisrl.ars.usda.gov/id/eprint/187/1/170.pdf