In 1952 field experiments were conducted on private farms in order to determine the effect of the application of plant food in the form of fertilizer on the yields of crops. Soil fertility plots were located in eighteen counties. The fertilizer trials were so distributed that the locations would be representative of the major crop and soil areas. The climatic conditions in 1952 were generally favorable for the small grain crop with the exception of the spring wheat area. In this area a deficiency of rain in the spring greatly reduced the yields of wheat. The weather conditions throughout the growing season were favorable for the growth and development of the corn crop but there was a shortage of midsummer moisture in most areas. In the following tables the results of the fertilizer treatments on the various crops are presented.
Number of Pages
Agricultural Experiment Station, South Dakota State College
South Dakota Agricultural Experiment Station, "Progress Report of South Dakota Fertilizer Experiments 1952" (1952). Agricultural Experiment Station Agronomy Pamphlets. 22.