Department of Agronomy
While the specific objectives and the methods have not been identical in all states, the general objectives were quite similar and can be briefly stated as follows:
1. To make a biological evaluation of the effect of nitrogen and . potassium fertilizers added to soils on the availability of fertilizer phosphorus.
2. To study the effect of level of nitrogen and potassium content of the soil on the yield and phosphorus uptake of various crops.
3. To determine the effect of placement of nitrogen and potassium on phosphorus utilization by various crops.
4. To determine the mechanism by which one nutrient may affect the uptake of another nutrient by crops.
fertilizer macro nutrients, improving crop yields, increasing crop yields, radioactive phosphorus, phosphorus uptake
South Dakota Experiment Station, South Dakota State College of Agriculture and Mechanical Arts
Fine, L. O., "The Influence of Nitrogen and Potassium on the Availability of Fertilizer Phosphorus" (1955). Research Bulletins of the South Dakota Agricultural Experiment Station (1887-2011). 453.