Ways to Prevent Soil Erosion on Farms: 10 Methods Compared

The best ways to prevent soil erosion on a farm keep the ground covered, slow water on slopes and break the wind. Crop residue, cover crops, contour farming, terraces, grassed waterways, buffer strips and windbreaks all do one of those three jobs. Nebraska Extension research found that leaving just 20% of the surface under crop residue can halve erosion compared with bare soil.

This guide ranks ten ways to prevent soil erosion by what they protect against, what they cost in effort, and where they fit. It also gives the latest US and EU erosion figures, three charts and a calculator you can fill in with your own field numbers.

How big is the erosion problem on farmland?

Erosion is the loss of topsoil to water and wind. Water strips soil in thin sheets and small channels called rills. Wind lifts dry, loose soil from bare fields. Both take the most fertile layer first, along with organic matter and nutrients.

The 2022 National Resources Inventory summary from USDA NRCS reports that erosion rates on US cropland fell 34% between 1982 and 2022. Water erosion dropped from 3.89 to 2.67 tons per acre per year. Wind erosion dropped from 3.24 to 2.08 tons per acre per year. These are national averages. Many fields lose far more, and some lose almost nothing.

Europe tracks the same risk in a different way. Eurostat’s soil erosion indicator says 5.1% of the EU’s erodible, non-built land was at risk of severe water erosion in 2023, meaning a loss above 10 tonnes per hectare a year. The share was 6.1% in 2000. Mediterranean and Alpine countries carry the highest risk. The EU Soil Monitoring Law, in force since 16 December 2025, lists erosion among the main soil threats it covers.

Lost soil does not stay put. Sediment fills ditches, ponds and culverts. It carries phosphorus and farm chemicals into streams. On the farm, thinner topsoil holds less water and fewer nutrients, which can show up as weaker patches of crop year after year.

Chart

Average erosion on US cropland, 1982 vs 2022

tons per acre per year, non-Federal cropland, national average

What makes erosion control work

Erosion scientists describe soil loss with a simple equation. The EU and US models both use versions of it. Soil loss depends on rainfall energy, how easily the soil breaks apart, slope length and steepness, how the ground is covered, and any support practices such as contours or terraces.

That equation explains why the most useful erosion control methods fall into three groups:

• Cover the soil. Residue, cover crops, mulch and permanent grass take the hit from raindrops and wind.
• Slow and guide the water. Contours, strips, terraces and waterways shorten the slope and stop small flows from joining into gullies.
• Catch what still moves. Buffer strips, field borders and basins trap sediment before it leaves the field.

Wind needs one more tool: barriers such as tree rows and trap strips that cut wind speed at the soil surface. Most farms need a mix. A single practice rarely fixes a field with a long slope, heavy storms and bare soil in spring.

▶ A light explainer on seven simple ways to protect soil and water on a farm. · 4:34

10 ways to prevent soil erosion, ranked by how broadly they apply

We ordered the list from practices that suit almost any field to those for specific problems. Each item has a “Best for” line so you can skip to what matches your land.

1. Leave crop residue on the surface

Best for: row crops and small grains on any slope.

Residue is the cheapest cover you have, because you already grew it. Stalks and stubble absorb raindrop energy, so less soil breaks loose. Nebraska Extension’s guide on residue cover reports that 20% residue cover can cut erosion by about half compared with residue-free soil. It adds that conservation plans often require 30% to 85% cover after planting.

A University of Missouri Extension guide on conservation tillage defines conservation tillage as any system that leaves at least 30% of the surface covered after planting. It shows erosion falling by at least 50% at that level compared with bare, fallow soil.

Measure residue, do not guess. Both guides warn that looking across a field overstates cover. Use a 100-foot tape with 100 marks, stretch it diagonally across the rows, and count the marks that sit over residue.

2. Switch to no-till or reduced tillage

Best for: fields where tillage leaves soil bare at planting.

No-till keeps last season’s residue in place and leaves soil structure intact. Reduced tillage, such as strip-till or a single chisel pass, is a middle step. Adoption has grown slowly in the US. A 2024 study in Choices magazine found no-till on 27.5% of US cropland in 2022, up from 25.3% in 2012. The same study found that many counties dropped the practice even as others took it up.

Yield is the common worry. A global meta-analysis in Nature of 5,463 paired observations found that no-till on its own lowered yields on average, but the loss shrank when no-till was combined with residue retention and crop rotation. Results varied by crop and climate, so test it on a few fields first.

3. Plant cover crops between cash crops

Best for: fields that sit bare over winter or between crops.

A cover crop protects the soil when nothing else does. SARE’s cover crop guide lists slowing erosion as a main use, along with better water infiltration and nutrient management. Cereal rye and other grasses give fast, heavy cover. Legumes add nitrogen and still help hold soil.

US uptake is still small. The Choices study put cover crops on 4.7% of US cropland in 2022, up from 2.7% in 2012. Cost and payback timing hold many farmers back. Species choice, seeding dates and termination are a topic of their own, so we keep this item short here.

4. Farm on the contour

Best for: gentle to moderate slopes with even shape.

Contour farming means tilling, planting and harvesting across the slope instead of up and down it. Each row becomes a small ridge that holds water back. It costs little once the guide lines are set. It works less well on steep or uneven slopes, where rows break and water spills over at low points. The 2022 NRI recorded contour farming on about 18.4 million acres of US cultivated cropland.

5. Use strip cropping

Best for: longer slopes, and flat fields exposed to wind.

Strip cropping alternates bands of a row crop with bands of hay, grass or small grain. The dense strips slow runoff and catch soil from the strip above. Across the wind, the same idea shortens the open distance that wind can travel. Strips need more planning for machinery widths and rotation, so they suit farms with hay or forage in the plan.

6. Build terraces on steeper slopes

Best for: long or steep slopes where contours alone fail.

Terraces are earth ridges or channels built across the slope. They cut one long slope into several short ones and carry water to a safe outlet. They cost more to build and need upkeep after big storms, and some designs make field operations harder. In return they control erosion on land that would otherwise gully. The NRI recorded terraces on about 24.2 million acres of US cultivated cropland in 2022.

7. Shape grassed waterways

Best for: natural draws where water collects and cuts gullies.

A grassed waterway is a broad, shallow channel kept in permanent grass. It lets concentrated water leave the field without tearing out soil. It is one of the most widely used conservation structures in the US: about 33.5 million acres of cultivated cropland had one in 2022, according to the NRI. Keep sprayers and tillage off the grass, and repair washouts quickly.

8. Add buffer and filter strips at field edges

Best for: fields next to streams, ditches and ponds.

Filter strips are bands of grass at the low edge of a field. Riparian buffers add trees and shrubs along streams. Both slow runoff so sediment settles out before it reaches water. They do not stop erosion inside the field, so pair them with cover practices upslope.

9. Plant windbreaks and shelterbelts

Best for: open, dry, sandy or silty land with strong winds.

Rows of trees or shrubs cut wind speed for a distance downwind. They also shelter livestock and buildings. Trees take years to grow, so many farms combine them with quicker fixes such as residue, cover crops or cross-wind trap strips. The NRI counted about 4.6 million acres of cultivated cropland with windbreaks in 2022.

10. Keep permanent cover on the worst spots

Best for: field corners, steep knolls and land that keeps washing out.

Some ground costs more to crop than it returns. Grass, hay or trees on those spots can stop the worst losses for good. In the US, conservation programmes run by NRCS and the Farm Service Agency can share costs for some practices; rules, payment rates and sign-up periods change, so check with your local office before you plan around them.

Chart

Share of US cropland in no-till and cover crops

percent of total cropland, 48 contiguous states, Census of Agriculture years

Erosion control methods compared

This table sums up the ten methods. “Main threat” shows whether a practice mostly targets water or wind. “Effort” is our plain rating of the work and cost to set it up, not a measured figure.

Chart

Conservation structures on US cultivated cropland

million acres with the practice, 2022, selected practices

How to choose erosion control for your field

Start with what you see. Rills after a storm, muddy water at the field edge, drifts along fences and pale, thin patches on knolls all point to where soil is leaving. Then work through these steps.

1. Find the type. Rills and gullies mean water. Dust and drifts mean wind. Many fields have both in different seasons.
2. Find the timing. Most losses happen when soil is bare and storms or wind hit, often from harvest to crop canopy the next year.
3. Fix cover first. Residue, less tillage and cover crops cost least per acre and help against both threats.
4. Add structure where water gathers. Use contours, strips, waterways or terraces on the slopes and draws that still wash.
5. Protect the edges. Put filter strips or buffers where runoff leaves the field.
6. Check and adjust. Walk the field after big storms, measure residue each spring, and compare crop vigour maps across seasons.

Satellite images can help with the last step. Patches that stay weak season after season often match eroded knolls or wet draws. The Farmonaut Satellite + AI Farm Monitoring System shows vegetation maps for your own fields through the season, which helps you see where to walk first. A satellite map shows weak plants, not the cause, so confirm on the ground.

Programme rules, cost-share terms and any legal duties on runoff differ by country and state. Check local rules and get advice from your conservation office or an agronomist before major earthworks.

Is preventing soil erosion worth the cost?

The value of saved soil is hard to price. Some economists use the nutrients carried away; others use the yield lost on thinner topsoil. There is no single agreed dollar value per ton. That is why the calculator below asks you for your own value and your own costs.

The Center for Agricultural and Rural Development at Iowa State University reported that return on investment is a key barrier to wider cover crop adoption. In practice, the cheapest steps (keeping residue, cutting a tillage pass) often pay first, while structures such as terraces are a long-term investment in the land.

Try the numbers for your own farm below.

Fixes for gullies and problem spots

Gullies are the late stage of water erosion. Once a channel is too deep to cross with machinery, tillage will not fill it for long. The water that cut it will come back to the same path.

Deal with the water first, then the channel. Shape the draw into a grassed waterway if it carries water every storm. Where water falls over a sharp drop, a grade control structure or a small dam can hold the bed in place. Water and sediment control basins are short earth embankments across a draw that pond runoff for a short time and let soil settle out. The NRI recorded these basins on about 2.1 million acres of US cultivated cropland in 2022, up from about 1.2 million acres in 2012.

Field roads, tramlines and livestock tracks also start gullies. Water runs down wheel ruts as if they were channels. Turn roads across the slope where you can, add small diversions to push water off tracks, and keep gateways out of low spots.

Grazed land has its own rules. Overgrazed pasture leaves bare patches that wash and blow like a tilled field. Rotational grazing, rest periods and keeping stock off wet slopes help keep grass cover thick. Fence cattle out of stream banks where they trample the edge.

Common mistakes that undo erosion control

• Judging residue from the road. It looks thicker than it is. Measure it in the field.
• One tillage pass too many. Each pass buries more residue. A field that started at 40% cover can end up close to bare after a few passes.
• Spraying or tilling through waterways. Killing the grass turns a waterway back into a gully path.
• Building terraces with no safe outlet. Water collected on terraces must leave through a protected channel or pipe.
• Baling all the straw. Straw sold off the field is cover the soil no longer has.
• Relying on one practice. Buffer strips catch sediment, but they do not stop soil from leaving the slope above them.

Erosion control by farm type

Different farms face different risks. These short notes link the practices above to common situations in North America, Europe and Australia.

Corn and soybean fields in rolling country. Soybean stubble leaves little cover after harvest, so the following spring is a risky time. Iowa State University notes that the thick loess of western Iowa is highly productive but erosion-prone, especially on steep slopes. No-till or strip-till into the stubble, a cereal cover crop after harvest, and grassed waterways in the draws are a common mix.

Dryland wheat in windy regions. Long fallow periods leave soil bare and dry. Keep standing stubble, cut tillage, and plant trap strips or windbreaks across the main wind direction.

Vegetables and potatoes. These crops often leave fine, bare soil after harvest and need beds or ridges. Plant a cover crop as soon as the field is cleared, run beds across the slope where the field allows, and add filter strips at the low edge.

Vineyards and orchards on slopes. Bare soil between rows washes in heavy rain. A grass or mixed cover in the alleys protects it, while mulch under the vines limits competition.

Pasture and rangeland. Grass cover is the main defence. Match stock numbers to the feed you grow, rest paddocks after grazing, and repair bare tracks and watering points.

▶ How raised beds help plant health and limit soil erosion in vegetable growing. · 15:31

How to measure progress

You do not need lab tests to see if erosion control is working. Use simple, repeatable checks:

• Residue cover each spring with the line-transect method.
• Photos of the same draws and field edges after large storms.
• Depth of sediment in ditches and ponds below the field.
• Crop vigour maps over several seasons, looking for weak patches that shrink or grow.

Keep notes for each field. After two or three seasons you will know which practices hold soil on your land and which need help.

▶ A walkthrough of satellite crop monitoring: reading NDVI maps to spot weak patches in a field. · 19:36

For a closer look at a related question, see our guide: Copper Sulfate for Roots: Pipe and Soil Doses.

FAQ

What is the cheapest way to prevent soil erosion?

Leaving crop residue on the surface. You already grew it, and Nebraska Extension reports that 20% residue cover can roughly halve erosion compared with bare soil.

Which erosion control methods work against wind?

Residue, cover crops, strip cropping across the wind, windbreaks and cross-wind trap strips. All of them keep soil covered or cut wind speed at the surface.

How much soil do US farms lose each year?

The 2022 National Resources Inventory puts average US cropland losses at 2.67 tons per acre per year from water and 2.08 tons from wind, down 34% since 1982. Individual fields vary widely.

Do cover crops prevent erosion on their own?

They protect bare soil between crops, but on long or steep slopes they work best with residue, contour farming or terraces. SARE lists erosion control as one of the main reasons to grow them.

Does no-till reduce yield?

Sometimes. A global meta-analysis in Nature found an average yield drop with no-till alone, which got smaller when residue and crop rotation were added. Try it on part of the farm first.

Related pages on our site: stopping water erosion, remote sensing in precision farming, satellite-based mineral detection, mining project enquiries and contact us.