The purpose of this study was to estimate the average daily soil moisture in the various areas of South Dakota. Estimates of such soil moisture are presented in graphic form for locations represented by 25 U. S. Weather Bureau Stations in South Dakota. Estimates of the average soil moisture available may be of use in planning irrigation projects for large areas or for individual farms. The method used here in calculating the soil moisture for the past may prove to be a practical means by which farmers can determine when and how often to irrigate during the crop year. Further study of this possibility is planned. Some of the data presented here is also being used by soil scientists in their study of soil productivity.
Number of Pages
South Dakota State College
Pengra, Ray F., "Seasonal Variations of Soil Moisture in South Dakota" (1959). Agricultural Experiment Station Agricultural Economics Pamphlets. 206.