Department of Agricultural Engineering
Irrigation is not a universal cure for moisture requirements for all crops.
Rainfall can be made to be nearly 100% efficient if conservation practices are installed on an irrigated area. Moisture retained from rainfall does not need to be applied by irrigation.
Above normal or abundant rainfall on a properly managed irrigation farm can be utilized more efficiently than on a non-irrigated farm. Planting rates and fertility levels on irrigated farms are maintained at a higher level to effectively utilize water. If abundant rainfall is experienced, the irrigation farmer has the proper conditions to utilize the natural resource.
Successful irrigation is predicated upon the premises that sunshine or solar energy is the only limit to production.
irrigation management efficiencies, sprinkler irrigation management in South Dakota
South Dakota Experiment Station, South Dakota State College of Agriculture and Mechanical Arts
Wiersma, J. L., "Sprinkler Irrigation Management" (1963). Research Bulletins of the South Dakota Agricultural Experiment Station (1887-2011). 507.