The USDA site provides a wide variety of resources related to irrigation, such as feature articles, recommended readings, recent research developments, links, and much more.
The United States Salinity Laboratory's mission is to develop new knowledge and technology and to bring about solutions to the problems of crop production on salt-affected lands. In addition, USSL strives to promote sustainable agriculture, and prevent the degradation of surface- and ground-water resources by salts, toxic-elements, pesticides, and pathogens.
This link explains the problem of soil salinization due to excess irrigation and intensive farming. Click here to learn more about how intensive and inefficient irrigation methods are causing a loss of nearly 10 million hectares of farmland to salinization every year and why the USSLís research initiatives are so critical!
"The Waterkeeper Alliance is a grassroots advocacy organization with 157 local programs and growing." Water contamination is a huge problem in many areas and the Alliance is dedicated to preserving and protecting the water from polluters.