Agronomy Articles, News & Expertise
Growing entry · Q&A
Soil compaction from heavy equipment can significantly reduce crop yields if left unaddressed. This article explains how to identify compaction problems in row-crop fields and select the most effective remediation strategy based on specific field conditions. Expert agronomists share practical methods for diagnosing compaction depth and severity, then matching the right fix to each situation.
The field panel
Harisharan Devgan
Harisharan DevganFounder & Organic Farming Expert · Niche Group
I usually don't believe in the concept that every field needs deep ripping just because it loosens up the soil after the harvesting process. My first go-to step is to dig deeper into the soil with the help of a shovel and see what's really happening below the surface.
If I find something like a hard compacted layer that roots are unable to push through and water is still sitting on top after heavy rain, then I tell myself to go for a deep ripper. But if the soil is only slightly compacted, I prefer to avoid unnecessary tillage and let natural things do some work on their own, which includes cover crops, earthworms, and natural soil biology, while still using lighter equipment passes.
One sign that gives me a feel that my decision is right is how the crop performs the following season. A few of the positive signs are as follows: Healthy root growth, quicker water infiltration after heavy rain, and fewer puddles. I have also noticed crops started to remain greener for a longer period of time because roots can reach deeper for moisture with so much ease.
Whether I choose deep ripping or a lighter approach, my main objective always remains the same: Fix the main problem without disturbing the soil more than necessary. In my experience over the years, I can only say the best results come from treating each field based on its conditions instead of following the same practices everywhere.
Controlled-traffic farming keeps heavy wheels on the same lanes each year. By using GPS guidance and matching implement widths, most of the field stays never driven. The compacted strip becomes stable, while crop zones keep good structure and higher pore space. Benefits grow over time as soil rebuilds in the undriven beds and water entry improves.
Adoption needs planning for machine widths, turning, and harvest operations, and may require small changes to the fleet. Even partial adoption, like setting harvest tramlines first, can cut damage fast. Map permanent lanes and set guidance lines now, then run all passes on them in the next season.
Deep-rooted cover crops can loosen tight soil by using living roots instead of steel. Species like tillage radish, cereal rye, or sweet clover push through dense layers and leave channels that later crops can use. These roots also feed soil life, raise organic matter, and help water move through the profile. Success depends on timely seeding, enough fall growth, and killing the cover at the right stage before planting the cash crop.
This approach works best on mild to moderate compaction and in fields that are not waterlogged for long periods. Severe, deep pans may still need a one-time mechanical pass before the cover program takes over. Set up a cover crop plan with local seed and timing advice, then try a pilot strip this season to see the effect.
Wet soil is easy to compact because water fills pores and removes strength. Improved drainage lowers water tables, shortens wet periods, and lets field work happen at safer moisture levels. Options include surface shaping to remove ponding, clean outlets, and subsurface tile to move excess water. Better drained fields often show faster spring warm-up, deeper roots, and more even yields, which helps pay for the work.
Design needs proper grades, adequate outlets, and attention to erosion risk at discharge points. Some areas need permits or conservation plans to stay compliant. Ask a drainage professional to survey the field and build a phased plan before the next wet season.
Lowering tire pressure spreads the load and drops the pressure on the soil surface. Wider tires or tracks increase contact area and reduce rut depth when the soil is moist but not too wet. Central tire inflation systems allow quick pressure changes between road and field, which protects soil without slowing work. Upgrading to high-flex tires can carry the same load at lower pressure, but the whole machine, including implements, must be considered.
These steps work best when also avoiding field work on very wet days, since wet soil still compacts under light loads. Check axle weights and match tire setups to the job to avoid hidden high-pressure points. Work with a tire dealer to set correct pressures and test them during the next field window.
A strip-till system tills only a narrow band where the next row will grow. This creates a warm, mellow seedbed while leaving the area between rows undisturbed and strong enough to carry traffic. Fewer full-width passes mean less chance to compact the whole field, and nutrients placed in the band help early growth. Row cleaners, depth control, and shank or coulter choice should match residue level and soil type to avoid smearing.
Over time the untilled zones gain structure and earthworm channels, which support better drainage and root spread. This method can fit corn and soybean rotations, and can be paired with fall or spring timing to suit weather. Line up strip locations with planter guidance and try one field to confirm the fit.
| 26May | Residue Management Moves That Balance Seedbed and Moisture in Field CropsManaging crop residue after harvest can make or break next season's planting conditions. Getting the balance right between adequate seedbed preparation and moisture retention requires strategic decisions at critical times. This article explores proven residue management techniques, backed by insights from agronomic experts who work directly with farmers to optimize field conditions. | Q&A |
| 30Jun | Make Better Calls on Weed Escapes in Field CropsWeed escapes in field crops can significantly impact yield and profitability if not addressed at the right time. This article provides practical guidance on selecting the most effective control methods based on weed growth stages, featuring insights from agronomic experts and experienced growers. Learn how to make strategic decisions that protect your crops and maximize return on investment. | Q&A |
| 18May | Knowing When Field Drainage Will Pay on CroplandWet zones in fields can significantly reduce crop yields and limit planting options, but determining whether drainage systems offer a worthwhile return on investment requires careful analysis. This article examines the key factors that influence drainage profitability, with insights from agricultural drainage experts and agronomists. Learn how to identify problem areas where field drainage will deliver measurable economic benefits for your operation. | Q&A |
| 13Oct | How Field Crop Growers Make Better Planting Timing CallsPlanting too early can damage soil structure and hurt crop performance. Field crop growers must watch soil conditions before making timing decisions. Insights from experts in the field explain how protecting soil structure leads to better planting calls. | Q&A |