Soil Fertility
Managing Soil: Maximizing Profit Meeting & Southeast Research Farm Annual Business Meeting
The Managing Soil: Maximizing Profit Meeting will be held on December 8 from 9:15 a.m. to 3:00 p.m. at the Swan Lake Christian Camp (45474 288th St., Viborg, SD 57070). The Southeast Research Farm Annual Business Meeting will also occur from 12:45 to 1:00 p.m.
Can Including Soil Biological and Physical Measurements Improve the Predictability of Corn Response to P Fertilization
The objective of this research was to determine if the predictability of yield response to P fertilization would be improved by considering additional selected measurements of the soil biology, physical, and chemical properties.
From Feed to Field: How Feed Management Supports Nutrient Cycling in Swine Production Systems
For swine systems, the relationship between feed and manure is especially important. Feed management, manure recycling, and conservation practices can work together to improve nutrient use efficiency and support long-term soil function.
Evaluating the Soil Test Phosphorus Level Where No Further Corn Yield is Expected from Phosphorus Fertilization
The objective of this research was to evaluate the accuracy of current South Dakota corn P recommendations in predicting yield increases.
Soybean Nutrient Management Practices
Survey data were used to examine how local and operational characteristics within South Dakota were related to various nutrient management practices.
Wheat Nutrient Management Practices
South Dakota wheat nutrient management survey results.
Winter Wheat and Nitrogen: Decisions for the 2027 Growing Season
Producers cannot control fertilizer or grain markets, but they can control how efficiently nitrogen is used on their farms. Learn some key strategies and considerations for the 2027 growing season.
Soil Health Hour
Join SDSU Extension experts to learn about soil health practices during this free webinar series on the first Wednesday of each month from October 7 through March 3 at 10:00 a.m. CDT.
Does It Pay to Build Up Soil Phosphorus in High-pH Fields?
In high-pH soils, Phosphorus fertilizer can react with calcium already in the soil and form compounds that crops cannot easily use. It means that applied Phosphorus fertilizer can become “tied up” in the soil, leaving many farmers wondering whether the fertilizer they pay for is really working for them.
25th annual Tri-State Drainage Research Forum brings latest research to Owatonna, Minnesota
August 24, 2026
South Dakota State University Extension invites the public to the 25th annual Tri-State Drainage Research Forum this fall in Minnesota.