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Soil Fertility

All Soil Fertility Content

Field pea cover crop blend growing in a field of corn residue.

Midwest Cover Crops Council Releases Third Edition Cover Crops Field Guide

November 29, 2021

Cover crops are used to slow erosion, improve soil health and capture nutrients. From planting to termination, growers face many production decisions, however.

Tractor pulling manure a spreader through a harvested crop field.

Using Feedlot Manure to Reduce Crop Production Costs

Livestock waste can be a valuable source of crop nutrients when correctly managed. Taking a strategic approach to feedlot manure application can increase the value of manure as part of your overall system.

Tanks of anhydrous ammonia being pulled to a field for fertilizer application.

Determining an Economically Optimal Nitrogen Rate for Corn in 2022

While we can't know what the prices of corn and nitrogen fertilizer will be next year, it is very important to understand how the level of both prices will influence corn profitability for 2022.

Female producer holding a soil core sampling probe in a harvested soybean field.

Fall Soil Sampling

With fertilizer prices on the rise, it’s more important than ever to understand your soil test levels and crop response to applied fertilizers. Fall is a great time to soil sample before freeze up.

Small group of producers in a field where cattle are grazing crop residue.

Managing Soil: Maximizing Profit Conference Set for Dec. 7

November 19, 2021

South Dakota State University Extension and the SDSU Southeast Research Farm will host a seminar for growers interested in soil health, regenerative agriculture and livestock inclusion in these systems.

A group of red and white calves grazing in a field of switchgrass.

Integrating Perennial Crops in Annual Crop Rotations

The Dakota Lakes Research Farm is working to develop cropping systems that include perennial crops, such as switchgrass, big bluestem and alfalfa, to improve long-term soil health and farm productivity.

Three soybean fields with yellowing issues due to potassium deficiency, iron deficiency chlorosis and soybean cyst nematode.

What Is Causing Soybeans to Yellow at This Time?

Recently scouted soybean fields were observed with yellowing plants, and one field was found to have plants dying prematurely. Learn some of the factors that may cause soybean plants to yellow at this time in the growing season.

Corn plant with yellowing leaf edges due to potassium deficiency.

Corn Potassium and Drought

For many crop producers, potassium deficiency has become an increased concern, and this year’s drought conditions have resulted in potassium deficiency symptoms showing up in fields where it would normally not occur.

Group of Rangeland and Soils Day competitors observing grassland conditions during the competiton.

SDSU Extension Announces Rangeland and Soils Day Results

June 14, 2021

The first place 4-H teams in each judging event from both contest locations will now advance to the National Land and Range Judging Contest in Oklahoma City, Oklahoma in May 2022.

Rancher standing in a vast, rolling grassland.

Grassland Fertilization: Terminology and Economics

This article is the first in a series of six focused on helping producers understand the pros and cons of grassland fertilization. We begin by learning some of the basic terminology and information related to fertilization.