Browsing by Author "Waskom, Reagan, author"

Now showing 1 - 9 of 9

Open Access
Advancing agricultural water conservation in Colorado
(Colorado State University. Libraries, 2012-04) Waskom, Reagan, author; Bauder, Troy, author; Sternlieb, Faith, author; Kallenberger, Julie, author; U.S. Committee on Irrigation and Drainage, publisher
Population growth and climate variability are increasing pressures on limited water resources, and extensive collaboration is needed to develop long-term working solutions to this complex issue. Agriculture consumes an estimated 90 percent of available water resources in the western U.S., and future water needs for an expanding urban population will likely come from agriculture. Therefore, it is increasingly urgent for farmers, water managers, extension agents, and policy-makers to understand agricultural water conservation methodology, technology, and policy to make informed management decisions. Reliable information on the subject is often not readily available to water users, especially outside of the academic and government communities. The USDA-NIFA Northern Plains and Mountains Regional Water Team (NPM) has addressed the need for increased knowledge, understanding and adoption of agricultural water conservation through an innovative web-based project. The Agricultural Water Conservation Clearinghouse (AWCC) seeks to join communities of practice to collaboratively address the complex issues of agricultural water use. The AWCC is designed as a comprehensive resource for the latest news, research, literature and tools related to agricultural water conservation. The focal point of the AWCC is a library that contains references to published materials populated by Extension specialists, research scientists, and educators, providing a refined bibliographic review of agriculture water conservation grey literature. The Library encompass over 3,600 entries of refereed journal articles, books, reports, theses and dissertations, and conference proceedings. The AWCC has been searched by over 21,000 users since it was unveiled in 2008 and participation continues to grow.
Open Access
Agricultural chemicals & groundwater protection in Colorado
(Colorado State University. Libraries, 2013) Wawrzynski, Rob, author; Waskom, Reagan, author; Bauder, Troy, author; Ross, Andrew, author; Wardle, Erik, author; Mauch, Karl, author; Colorado Water Institute, publisher
The Agricultural Chemicals and Groundwater Protection Program was created during the 1990 legislative session and took effect on July 1, 1990. The Program's purpose is to reduce negative impacts agricultural chemicals have on groundwater and the environment by preventing groundwater contamination before it occurs through improved agricultural chemical management. Agricultural chemicals covered under this legislation include commercial fertilizers and all pesticides. This report summarizes the efforts of the Agricultural Chemicals and Groundwater Protection Program since inception and provides an overview of activities and monitoring data.
Open Access
Agricultural chemicals & groundwater protection in Colorado, 1990-2006
(Colorado State University. Libraries, 2006) Bauder, Troy Allen, author; Waskom, Reagan, author; Wawrzynski, Rob, author; Mauch, Karl, author; Naugle, Greg, author; Colorado State University, Cooperative Extension, publisher
Open Access
FY2008/2009 activities and impact report
(Colorado State University. Libraries, 2008-11-21) Waskom, Reagan, author; Grice, Nancy, author; Hittle, Zach, author; Colorado Water Institute, Colorado State University, publisher
Open Access
Meeting Colorado's future water supply needs: opportunities and challenges associated with potential agricultural water conservation measures
(Colorado State University. Libraries, 2008-09) DeNatale, Kelly N., author; Doherty, Todd, author; Waskom, Reagan, author; Brown, Rick, author; Colorado Water Institute, Colorado State University, publisher
Open Access
Public perceptions, preferences, and values for water in the west: a survey of western and Colorado residents
(Colorado State University. Libraries, 2009-02) Pritchett, James G., author; Bright, Alan, author; Shortsleeve, Andrea, author; Thorvaldson, Jennifer, author; Bauder, Troy, author; Waskom, Reagan, author; Colorado Water Institute, Colorado State University, publisher
Open Access
U.S. perspective on the water-energy-food nexus
(Colorado State University. Libraries, 2014-09) Waskom, Reagan, author; Akhbari, Masih, author; Grigg, Neil, author; Colorado Water Center, publisher
Open Access
Utilizing swine effluent on sprinkler-irrigated corn
(Colorado State University. Libraries, 2003-02) Al Kaisi, Mahdi, author; Waskom, Reagan, author
The expansion of large swine production facilities in Colorado prompted a need to evaluate the impact of swine effluent applied on irrigated corn grown on sandy soil. The objectives of this study were to: evaluate the use of swine effluent as a nutrient source for irrigated corn production, evaluate irrigated corn response grown on sandy soils to different application rates, determine NH3 loss during sprinkler application and the 72 hour period following application, and evaluate N movement through the soil profile under swine effluent and commercial-N fertilizer for irrigated conditions. The 5-year study was initiated in 1995 on a 14.5-ha sprinkler-irrigated field planted to grain corn. In 1999, the field experiment was expanded to two other facilities, both having one-stage lagoons to evaluate ammonia volatilization from single stage lagoon effluent. Both swine effluent and commercial-N fertilizer treatments were applied at four N rates labeled, control, low, agronomic, and high. All treatments were replicated three times in a randomized complete block design. Approximately 90% of the total nitrogen from the 2-stage lagoon effluent was in ammoniacal form, and the total dry matter content of the effluent was only 0.1-0.2% by volume. Corn yields increased with the increase of both swine effluent and commercial-N fertilizer rates. In contrast to the swine effluent treatments, significant soil-N buildup was observed at the 1.5 to 3.0 m depths for the commercial-N fertilizer treatments. Higher total N and P plant removal for the swine effluent treatments resulted in little N accumulation below the root zone. As the swine effluent application rate increased, the plant N and P removal and recovery rate increased. Ammonia loss during application ranged from 8 to 27% of the total NH4-N in the effluent due to drift and volatilization, with an average loss of 17%. The range of estimated N loss from the soil within 72 hours of application varied from 24 to 56%, with an average loss of 42% of the NH4-N in the applied effluent. The total N loss from both the sprinkler application and the soil ranged from 33 to 73% of the applied NH4-N, with an average loss of approximately 60%. Effluent N concentration did not significantly impact the percent of N lost, while air temperature and wind speed were significant variables in the percent of N lost.
Open Access
Water Center, 2007 - biennial review - 2009
(Colorado State University. Libraries, 2009) Waskom, Reagan, author; Grice, Nancy, author; Hittle, Zach, author; Hackett, Kevin, author; Colorado Water Institute, Colorado State University, publisher