Results 211 to 220 of about 101,484 (259)

Planning for Deficit Irrigation

Applied Engineering in Agriculture, 2010
Irrigators with limited water supplies that lead to deficit irrigation management need to make decisions about crop selection, water allocations to each crop, and irrigation schedules. Many of these decisions need to occur before the crop is planted and depend on yield-evapotranspiration (ET) and yield-irrigation relationships. The Kansas Water Budget (
null N. L. Klocke, null R. S. Currie, null L. R. Stone, null D. A. Bolton   +3 more
openaire   +1 more source

RESPONSE OF CUCUMBER TO DEFICIT IRRIGATION

Acta Horticulturae, 2009
An experiment was conducted in a polyethylene greenhouse at farmers' condition with the objectives of i) determining cucumber response to water stress, ii) quantification of water use in different deficit irrigation programs, iii) defining practical recommendations for water management and iv) assess the crop response factor (ky) and water use of ...
Tüzel Y., Tüzel I.H., Öztekin G.B., Meric M.K., Whalley R., Lock G.   +5 more
openaire   +2 more sources

Deficit Irrigation Management Decision Tools

5th National Decennial Irrigation Conference Proceedings, 5-8 December 2010, Phoenix Convention Center, Phoenix, Arizona USA, 2010
Many irrigators face the prospect that they will not be able to fully irrigate their crops. They are under pressure to develop cropping strategies as pumping capacities dwindle or water supplies become more restricted. These irrigators need to make long term and short term decisions about their deficit irrigation management strategies.
null Norman L Klocke, null Loyd R Stone
openaire   +1 more source

Evapotranspiration of Deficit Irrigated Sorghum

World Environmental and Water Resources Congress 2007, 2007
Deficit irrigation commonly is used in regions with reduced or limit ed irrigation capacity to increase water use efficiency (WUE). This research measured sorghum ( Sorghum bicolor L. Moench ) water use (ET) and yield so WUE could be determined. Two precision weighing lysimeters were used to accurately measure sorghum ET fr om a fully irrigated field ...
T. A. Howell, J. A. Tolk, S. R. Evett, K. S. Copeland, D. A. Dusek   +4 more
openaire   +1 more source

Economic Considerations of Deficit Irrigation

Journal of Irrigation and Drainage Engineering, 1984
The factors related to potential yields of crops are briefly described. The most important are water, fertility, and available energy as measured by the evaporative potential. Mathematical yield models are presented relating crop evapotranspiration and total water available to relative yields.
George H. Hargreaves, Zohrab A. Samani
openaire   +1 more source

Advances in Deficit Irrigation Management

5th National Decennial Irrigation Conference Proceedings, 5-8 December 2010, Phoenix Convention Center, Phoenix, Arizona USA, 2010
Scarcity of irrigation water supplies is leading to the need to consider deficit irrigation which is the intentional under-irrigation of crops resulting in evapotranspiration and yield reduction. We present analytical tools that can be used to assist irrigators and water managers in assessing the water balance and economic consequences of various ...
null Derrel L Martin, null Raymond J Supalla, null Christopher L Thompson, null Brian P McMullen, null Gary W Hergert, null Paul A Burgener   +5 more
openaire   +1 more source

Deficit Irrigation and Water Conservation

2020
In this chapter, we tackled some of the concepts and definitions used in application of deficit irrigation instead of full irrigation as a technology aims at conserving irrigation water. Both water use efficiency and water productivity are important estimators in the assessment of the effect of deficit irrigation.
Samiha Ouda, Tahany Noreldin
openaire   +1 more source

Wheat Insufficiency and Deficit Irrigation

2020
In this chapter, we tested whether implementing different production alternatives will contribute in increasing wheat national production and increase its self-sufficiency ratio. Data on the cultivated area and productivity of wheat were collected for both old and new lands on governorate level, as well as weather data in 2017 and water requirements ...
Abd El-Hafeez Zohry, Samiha Ouda
openaire   +1 more source

Macromanagement of deficit-irrigated peanut with sprinkler irrigation

Agricultural Water Management, 2009
Precision irrigation management and scheduling, as well as developing site- and cultivar-specific crop coefficient (Kc), and yield response factor to water deficit (ky) are very important parameters for efficient use of limited water resources. This study investigated the effect of deficit irrigation, applied at different growth stages of peanut with ...
openaire   +1 more source

Water Deficits—Irrigation Design and Programming

Journal of the Irrigation and Drainage Division, 1972
Irrigation system design and economic analysis of proposed irrigation schemes require quantitative prediction of relationships between crop production and water use. In keeping with recent irrigation design practice, a comprehensive table is presented to update and add to earlier information defining the limits of allowable soil water depletion prior ...
Robert M. Hagan, Ian J. Stewart
openaire   +1 more source