Tillage and soil management
Soil compaction video series
1. Soil Compaction. This video describes soil compaction, its effects, and a few ways to avoid compaction.
2. Soil structure: A natural defense against soil compaction
3. Tracks and tires.
This video discusses how to manage wheel traffic to reduce soil compaction, tracks and tires, proper tire inflation, and the benefits of controlled traffic.
4. Proper tire inflation
Tillage, traction and compaction
This video discusses soil compaction alleviation and the importance of soil structure and demonstrates the impact of deep tillage implements (moldboard plow, zone till and a disk ripper).
Strategies to minimize soil compaction during a wet fall harvest.
A discussion of myths surrounding soil compaction and strategies to reduce it.
Soil compaction effects on soil structure, crop growth and yield and ways to manage traffic and tires to minimize compaction.
In-depth look at causes, consequences and strategies for dealing with soil compaction.
Six recommended strategies for minimizing compaction, including managing axel loads, controlling traffic and reducing tire pressure.
Wind erosion processes – NDSU and UMN Soil Health
Erosion: Field examples – NDSU and UMN Soil Health
Consequences of losing top soil and management practices to maintain it. (584 K PDF)
Land rolling and residue management
Ground rolling prepares a field for harvest, but also poses agronomic, economic, and environmental risks.
Impacts of crop residue removal and tips for sustaining soil organic matter carbon during residue harvest.
Soil productivity may be reduced if all residue is harvested regularly and not returned to the soil. Crop News.
Tips for managing crop residue in corn, soybeans, small grains and alfalfa cropping systems.
Upper Midwest Tillage Guide
The Upper Midwest Tillage Guide is a collaboration between University of Minnesota Extension and North Dakota State University.
Part I explores the benefits of tillage from an historical perspective.
Part II describes equipment components, depth of tillage, and typical residue covers for various tillage implements.
Increased soil structure, organic matter, and reduced soil erosion are some of the many benefits of reduced tillage discussed in Part III.
Part IV looks at crop yields and tillage costs of various tillage systems.
Aggressive tillage followed by dry winters and springs can result in poor particle-to-particle contact and affect crop growth. Journal of Soil and Water Conservation feature.
University of Minnesota and North Dakota State University (335 K PDF)
Comparison of moldboard, chisel plow and strip–till systems in continuous corn and their effects on residue cover and management. Crop News.
Factors to consider when selecting a tillage system, including soil characteristics, nutrient management and equipment type and age.
Summary of a three–year study conducted in West-central Minnesota, 2013. (633 K PDF)
Residue cover, plant populations and yield response to six different long–term (5 years) tillage treatments in Jackson County, 2011. (24 K PDF)
Evaluation of soil and economic impacts of deep zone tillage when no restrictive layer existed. Published in Crop Management, May 2009.
Tillage effects on soil residue cover, plant populations and yields, as well as management tips for choosing a conservation tillage system.
Optimum tillage systems for corn and soybean production and water quality protection in south central Minnesota
Factors to consider when making tillage decisions, tips for residue management and summaries of previous research.
Factors to consider, including soil type and precipitation patterns, when making tillage system decisions in south central Minnesota.
Several factors must be considered when choosing a crop residue management system. Management tips and yield results from tillage studies are included.
Tillage and nutrient management
Deep banding of nutrients
Advantages of deep banding fertilizer phosphorus (P) and potassium (K) are discussed by Dr. Dave Franzen, NDSU, in this video.
Dr. Francisco Arriaga, University of Wisconsin, demonstrates effect of shallow tillage on the soil profile and residue incorporation and discusses fertilizer P placement, protecting the soil surface, and mechanics of soil erosion.
Shallow tillage and nitrogen volatilization
Marla Riekman, Manitoba Agriculture, describes nitrogen volatilization differences between surface-applied and shallow tillage incorporated urea.
Soil fertility and reducing tillage
Dr. Dave Franzen (North Dakota State University) and Jodi DeJong–Hughes (University of Minnesota) discuss soil fertility considerations in reduced tillage systems at the Conservation Tillage Conference, 2014.
Soil and water quality management
Tips for minimizing soil compaction, smearing and managing residue when heavy fall rains occur.
Using conservation tillage and structures to reduce soil erosion and help maintain surface water quality in the Karst region of Minnesota.