Knowing your soil type and how it behaves when worked will help you provide optimal conditions on your farm.
Very light soils
Very weakly structured, can slump down over winter
Leave cultivations until just before drilling
Plough to loosen the top 20cm of soil
Use appropriate consolidation to preserve moisture and reduce erosion
Light soils
Have an unstable structure, especially if low in organic matter content
Limit cultivations to avoid creating a fine seedbed which may settle into a compacted state during heavy rain and result in surface ponding and runoff.
Ploughing may be needed to break up compaction, creating a vicious circle
Where damage has occurred, consider importing large quantities of an organic material (but don’t break NVZ rules on total organic matter loadings).
Medium soils
Have few limitations and are easy to cultivate
Soil structure tends to be weak and damage will occur in wet conditions
More susceptible to plough pans
Heavy soils
Have a stable soil structure but a narrow window for optimum cultivation, often too wet or too dry to work
Well suited to shallow cultivation, but the first pass must be shallow enough to avoid bringing up large clods
Cultivations should be kept to a minimum to reduce moisture loss. Use a furrow press or roll after each cultivation to retain soil moisture
To read about a farmer who is using soil properties to help him manage his farm, please click here.
Farmer Profile
Tom Dening farms Green Acres Farm, a 900 acre dairy and arable unit in Somerset. The farm has 160 milking cows, 300 beef cows and grows 300 acres of crops. By focusing on soil structure and mitigating compaction, Tom is improving his soil and business performance.