Department of Agronomy
Summary of Bulletin No. 139
(1). It is estimated upon the basis of commercial prices, twenty-five million dollars’ worth of nitrogen was removed from South Dakota soils in 1910. Most of it was never returned Page 9.
(2). Replace nitrogen by growing legumes, such as alfalfa, clover, field peas, or even sweet clover. Page 11.
(3). That it is possible to reduce the nitrogen content of South Dakota soils below the limit of profitable crop production is certain. Page 9
(4). To be brief, there is only one thing to do, namely, South Dakota must at once provide for a state wide study of her soil and crop conditions. Page(5).
By helping to solve the problems of the soil, and by generously and far sightededly according to its people that which is their due, can we "build the State." Page 16.
(6). A desire to call attention to the urgent need that the state acquire definite knowledge concerning its own soil and crop conditions and at the same time place this knowledge into intimate contact with farms and farm people has desire has led to this publication.
community development, soils, crops, nitrogen depletion, soil management
South Dakota Experiment Station, South Dakota State College of Agriculture and Mechanic Arts
Hume, A.N., "Soil and Crop and Their Relation to State Building" (1912). Agricultural Experiment Station Bulletins. 139.