Skip to main content

Soil Fertility

All Soil Fertility Content

an image of the cover of the SDSU Extension Fertilizer Recommendations Guide

SDSU Extension releases updated 2023 corn nitrogen fertilizer rate guidelines

March 27, 2023

South Dakota State University Extension has updated the corn nitrogen Fertilizer Recommendations Guide to reflect lowered rate recommendations.

corn field with sunrise in the background

2019 Survey South Dakota Corn Nutrient Management Practices

Data from the 2019 survey South Dakota farmers was used to examine how local and operational characteristics such as geographic location within SD, tillage practice, and farm size were related to the adoption of various nutrient management practices.

Winter wheat emerging in a flooded field.

Effects of Spring Flooding in Winter Wheat

Every winter, growers are curious if their winter wheat will survive the winter. Learn some key factors that determine plant survival along with tips for assessing your fields this spring.

Treated seed corn on soil.

Corn Seed Treatment Effects on Soil Microbial Activity and Grain Yield at the 2022 Soil Health School

A recent research product at the South Dakota Soil Health Coalition's Soil Health School investigated the impact of omitting corn seed treatments on plant stands, microbial activity and grain yields. The findings may surprise you!

man holding a small pile of soil in his hands

Fertilizer Recommendation Guide

SDSU Extension fertilizer recommendations are based on field research in South Dakota and neighboring states.

A hand holding a soil sample taken from a soybean field.

Soil Testing Labs

This page contains a list of nearby state or private laboratories that can be used for crop production fields, gardens and lawns.

Rangeland and Soil Days attendees observing a grassland area.

39th annual Rangeland and 18th annual Soil Days set for June 14-15 in Watertown

March 20, 2023

SDSU Extension, Codington Conservation District and South Dakota Natural Resources Conservation Service are hosting Rangeland Days and Soil Days on June 14-15 in Watertown, South Dakota.

man holding a small pile of soil in his hands

South Dakota Fertilizer Rate Guidelines Calculator for Corn, Soybean, and Wheat

Calculator for Fertilizer Guidelines for Corn, Soybean and Wheat in South Dakota

Rangeland and Soil Days attendees observing a grassland area.
Jun 14

Rangeland and Soils Days @ Watertown

Join SDSU Extension, the Codington Conservation District, and the USDA Natural Resources Conservation Service South Dakota for the 2023 Rangeland and Soils Days Annual competitions on June 14 and 15 in Watertown.

A clump of healthy soil.

Register Now for SDSU Extension Soil Management Workshop

November 22, 2022

This year’s Managing Soil: Maximizing Profit program is Dec. 2 at the NFAA Yankton Archery Complex Community Center in Yankton.