Agriculture/Irrigation Information
| With more than 90 percent of water used for agriculture/irrigation in the San Juan/Dolores River Basin, the following provides useful information and resources kindly supplied, in part, with permission from the Southeastern Colorado Water Conservation District: |
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Ditch and Reservoir Company Alliance (DARCA)
DARCA is a membership organization for the benefit of all types of irrigation enterprises - ditch companies, reservoir companies, laterals, private ditches, and irrigation districts. Membership is also open to interested individuals, professionals and government/corporate organizations. The DARCA mission is "to become the definitive resource for networking, education and advocacy" for our members.
The Family Farm Alliance is a powerful advocate for family farmers, ranchers, irrigation districts, and allied industries in seventeen Western states. The Alliance is focused on one mission - To ensure the availability of reliable, affordable irrigation water supplies to Western farmers and ranchers. The Family Farm Alliance is recognized as an authority on critical issues dealing with Western water policy.
Colorado State University Cooperative Extension
The Water Center The Colorado Water Resources Reseearch Institute and the Northern Plains and Mountains Regional Water Program are currently developing an online regional and national clearinghouse of information, concerning agricultural water conservation, which highlights state of the art research and technology by international experts facing similar water constraints. The Ag Water Conservation Clearinghouse will ultimately provide current, science-based information on a wide variety of agricultural water conservation issues.
http://www.ext.colostate.edu/pubs/water/pubwater.html
http://www.ext.colostate.edu/menudrought.html
Sustainable Agriculture in Colorado www.smartditch.com Limited Irrigation Management The key management choices for dealing with insufficient irrigation supplies are to: 1) reduce irrigated acreage; 2) reduce amount of irrigation water applied to all acres; 3) substitute low-water requirement crops for high-water requirement crops; 4) delay irrigation until a critical water stage; and 5) manage soil moisture to capture precipitation. |
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Crop Residue and Irrigation Water Management
Crop residue cover and tillage practices play important roles in the way that crops use water, and also affect the ability of irrigation systems to replace that water. The effects of these practices and other influencing factors are discussed in this NebGuide. Tillage practices and crop residue management play an important role in the way that irrigation systems perform and are managed. Tillage practices affect the way that water moves into and off of the soil (infiltration and runoff). Tillage practices also affect the way that water moves from the soil into the atmosphere (evapotranspiration).
Selecting and Using Irrigation Propeller Meters
This NebGuide discusses the use of propeller type irrigation meters to monitor irrigation water use. Measuring irrigation water is important in efficient water management. Measuring water can be used for the following purposes: Checking irrigation efficiency, determining pumping plant efficiency, and detecting well and pump problems.
![]() Irrigation Canal Photo courtesy Dr. Mike Bartolo, PhD |
Propeller Meters for Irrigation
- Accurate measurement of water helps producers increase irrigation efficiencies, and reduce both energy and costs.
- Flow measurement facilitates water management. This can be done with the use of a flow measuring device.
- Propeller meters can provide accurate measurement of flow rate and volume if properly selected, installed and maintained.
Irrigation Scheduling: The Water Balance Approach
- Irrigation scheduling by the water-balance approach is analogous to running a checkbook balance.
- Advertised evapotranspiration rates can be used to run water balance and schedule irrigation.
- Ready-to-use computer programs facilitate the use of the water-balance approach in irrigation scheduling.
- Soil water-content measurements are needed as a safety check on the predicted water content and irrigation timing.
Seasonal Water Needs and Opportunities for Limited Irrigation for Colorado Crops
- Knowing seasonal crop water requirements is crucial for planning your crop mixture.
- Net crop requirements are estimated using models, based on weather variables.
- To water for the greatest return, producers need to understand how crops respond to water, how crop rotation enhances water availability, and how changes in agronomic practices effects water needs.
Colorado High Plains Irrigation Practices Guide
Provides a summary of the documented water savings options for irrigators in Colorado. It provides details regarding what options are available from water conservation, how these options are used to conserve water and expected water savings that can be achieved.
Plasticulture – Home Grown and High Tech
Plasticulture consists of Drip Irrigation and Plastic Mulch, explanation how plasticultures are helping farmers create an even better vegetable crop.
McCrometer has set the standard for propeller flowmeter technology in the agricultural and turf markets since 1955. Its uniquely-designed Mc Propeller line offers an economical and versatile flow measurement solution for a wide range of water applications, and is especially suited to dirty water flows.
![]() Furrow Crop Irrigation |
Netafim Drip Irrigation Products
Netafim offers a full range of products to satisfy all your drip/micro irrigation needs – including dripperlines, sprinklers, filters, valves, crop management technologies and other vital system support - such as technical education and agronomic expertise.
Diversity D Inc. – Specializing in Drip Irrigation
Diversity D offers consultation, design & installation for new systems. In addition, they offer service for existing systems.



