Productivity and Efficiency
According to the U.S. Environmental Protection Agency, water efficiency is the smart use of our water resources through water-saving technologies and simple steps. Using water efficiently will help ensure reliable water supplies today and for future generations. Topics addressed in this theme provide insights, lessons, and guidance on how diverse stakeholders are working to improve water management and reduce water use.
Productivity and Efficiency Resources
Farm Irrigation Constraints and Farmers' Responses, Comprehensive Field Survey in Pakistan; Vol. Iv: Major Constraints Confronting Farmers Explaining ... Low Crop Yields
Published:
September 1, 1978U.S. Agency for International Development, Colorado State University
Volume IV of a comprehensive study of Pakistan's irrigation system examines factors associated with low crop yields emphasizing farmers' perceptions of constraints. Farmers identified water problems as more constraining than all other farm problems combined. Reports findings regarding: (1...Read more
Regional focus:
Pakistan, South East AsiaFarm Irrigation Constraints and Farmers' Responses, Comprehensive Field Survey in Pakistan; Vol. VI: Appendices
Published:
September 1, 1978U.S. Agency for International Development, Colorado State University
Volume VI of a comprehensive study of Pakistan's irrigation system presents appendices which provide a wide range of information, background and raw data concerning farmers' responses to irrigation constraints appearing in companion volumes. Appendix I reports methods and sample, concepts...Read more
Regional focus:
Pakistan, South East AsiaFarm Irrigation Constraints and Farmers' Responses, Comprehensive Field Survey in Pakistan; Vol. V: Farmer Responses to Major Constraints: Viable Options... Conditions
Published:
September 1, 1978U.S. Agency for International Development, Colorado State University
Part of a field study on the irrigation system in Pakistan, Volume V examines the existing options which farmers exercise in order to control erratic water supplies, and presents a comprehensive watercourse improvement program. Four existing water control options are described: (1) water purchasing...Read more
Regional focus:
Pakistan, South East AsiaSome Aspects of Irrigation Technology in Afghanistan
Published:
January 1, 1977U.S. Agency for International Development, Colorado State University
Examines irrigation in Afghanistan and its effect in constraining increased national agricultural production. about 13 million acres, or two-thirds of the cultivable land, is irrigated, though much of it receives only supplemental water. includes a brief description of the irrigation problems in...Read more
Regional focus:
Afghanistan, South East AsiaImproving Capacity of Cid Universities for Water Management and Agriculture
Published:
June 1, 1976U.S. Agency for International Development, Colorado State University
The primary focus of this project was on delivery and removal of components of the water chain with emphasis on practices applicable to the small farmer and on drain systems.Read more
Regional focus:
United States, North AmericaCalibration and Application of the Jensen - Haise Evapotranspiration Equation
Published:
January 1, 1975U.S. Agency for International Development, Colorado State University
TO ESTIMATE THE CONSUMPTION USE OF VARIOUS CROPS USING CLIMATIC DATA, A SUMMARY OF THE PROCEDURE FOR DETERMINING EVAPOTRANSPIRATION AFTER CALIBRATING THE JENSEN-HAISE EQUATION IS AS FOLLOWS: 1) DETERMINE MEAN DAILY TEMPERATURE (T) FROM DAILY MAXIMUM AND MINIMUM TEMPERATURES FOR THE SEASON AND...Read more
Regional focus:
United States, North AmericaSediment Routing in Irrigational Canal Systems
Published:
January 1, 1973U.S. Agency for International Development, Colorado State University
The routing of bed material load through a branching irrigation canal system in such a way as to insure sediment discharge equilibrium is considered. All the sediment entering the system is disposed of with the water. It is shown that the system equilibrium can be more easily achieved if smaller...Read more
Planning Sediment Distribution in Surface Irrigation Systems
Published:
November 1, 1971U.S. Agency for International Development, Colorado State University
This report deals with planning sediment load distribution in surface irrigation systems. The object is to route water and sediment through an irrigation canal network so that sediment discharge equilibrium is achieved by diverting the sediment inflow with the farm supplies. A computer simulated...Read more
Maximum Water Delivery in Irrigation
Published:
August 1, 1971U.S. Agency for International Development, Colorado State University
In order to increase the water delivery efficiency of an existing irrigation system, it is proposed that modern mathematical optimization techniques be applied to the management of irrigation water delivery. A deterministic mathematical model is developed to simulate the events that occur in...Read more
Check - Drop - Energy Dissipator Structures in Irrigation Systems
Published:
May 1, 1971U.S. Agency for International Development, Colorado State University
There is a large volume of available literature regarding small energy dissipator structures. Existing publications present basic information for particular types of structures. This information has been compiled in order to present present-day available design information. Also, research topics...Read more
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