Soil Fertility
All Soil Fertility Content
Best Practices for Swine Manure Application
A publication covering best practices for swine manure application.
Impact of Swine Manure on Soil Organic Carbon
A publication on the impacts of swine manure on soil organic carbon.
SDSU Extension invites corn farmers to join on-farm nitrogen fertilizer trial program
February 06, 2026
South Dakota State University Extension and Premier Crop Systems are recruiting corn farmers to participate in nitrogen fertilizer trials.
Oat Nitrogen Fertilizer Rate Guidelines: Do we use the yield goal or maximum return to nitrogen approach?
Nitrogen is an essential plant nutrient commonly applied to oat crops. It is important to apply an appropriate rate of nitrogen fertilizer to oats, as too little can reduce economic return, while too much can lead to potential negative environmental effects.
Fertilizer Recommendation Guide
SDSU Extension fertilizer recommendations are based on field research in South Dakota and neighboring states.
South Dakota On-Farm Nitrogen Rate Trial Program
The on-farm corn nitrogen fertilizer rate trial program will help farmers, crop advisors and ag service providers to design, implement, and analyze nitrogen rate trials.
Updating Oat Nitrogen Fertilizer Rate Recommendations in South Dakota
Research trial results for nitrogen fertilizer rate recommendation for oats in South Dakota.
Crop Hour
SDSU Extension Crop Hour webinars provide valuable information for South Dakota crop producers to help them improve their profitability and prepare for the upcoming season.
Transitioning to Soil Health Systems in Eastern South Dakota Intended for beginners: Where do I start?
Fact sheet for beginners on where to start transitioning to soil health systems in eastern South Dakota.
Using Feedlot Manure as a Crop Nutrient Source
Factsheet that reviews the steps to obtain a manure application rate based on crop need, soil and manure testing.