Best Practices and Farm Management
Managing Soils for a Sustainable Future – In Rotations with Root Crops and Maize
Managing Soils for a Sustainable Future – In Rotations with Root Crops and Maize
This information is from The Soil Health Initiative. The Soil Health Initiative aims to bring together the wealth of understanding of soil health and management to help farmers improve their soil health and thus productive farming alongside environmental benefit.
This information is from The Soil Health Initiative. The Soil Health Initiative aims to bring together the wealth of understanding of soil health and management to help farmers improve their soil health and thus productive farming alongside environmental benefit.
All six soil health guides, covering most of the UK agricultural sector, are available online here. To read the original guide, for rotations with root crops and maize, click here.
First steps for improving soil health
Well-managed, functioning soils are the foundation of all production systems. Soils with good structure and diverse, abundant flora and fauna provide the nutrients plants need to grow, and form the essential building blocks of productive farms. Such soils best support good yields and reduce environmental risk from unnecessary losses to air and water.
There is no one-size-fits-all blueprint. Effective soil management builds on your existing practice, farming system, soil type, climate and cropping. There are options for every farmer to enhance both productivity and soil health.
Managing soils well can be complex, but this guide brings together some first steps for rotations with root crops and maize - to help you understand your soils and plan how to improve their health.
Three things to consider
On rented land, engage with the landlord about what's possible across the whole rotation
Put long-term soil health above short-term profit
Consider controlled-traffic approaches
Three things to avoid
Knowingly breaking the law, e.g. excess N applications
Allowing soil erosion from fields or part-fields
Causing topsoil or subsoil compaction wherever possible
For each area below, the first list is what everyone should do; the second is going beyond the norm.
Know your site and soils
Understanding the soils across your land - and how factors like slope and proximity to watercourses influence risk - helps you manage the farm to promote soil health.
Everyone should:
Know the land-use constraints of the farm, and the impact of variability - hydrology, slope, erosion risk
Know your soil texture, including subsoil
Understand the catchment-scale context - NVZ, diffuse P risks
Record soil observations and data so you can refer back easily
Make sure everyone on the farm understands the importance of soils
Going beyond the norm:
Develop on-farm skills that promote effective soil management
Spend time in peer-to-peer learning and engage in research
Monitor the system as a whole - grass production, livestock and crop quality, water quality - and use the information
Consider soils across the whole rotation, introducing practices to increase resilience for the more difficult cropping phases
Crop management
More crop rotations can support soil health improvement. Crops that replenish soil structure, organic matter and nutrient balance within a rotation help improve your soil.
Everyone should:
Use at least a three-crop rotation
Ensure the rotation is long enough for soil-borne pest management
Manage nematode risk
Choose appropriate varieties, particularly early-maturing ones
Apply fungicide, herbicide and fertiliser in a targeted way - use precision approaches
Going beyond the norm:
Maximise cropping diversity - extend the rotation
Don't use high-risk fields for high-risk crops
Improve cropping system design to support pollinators and predators of crop pests
Use cover cropping to improve soil structure and manage pests
Introduce trees as shelter belts and hedges, and consider agroforestry
Optimise nutrient management
Understanding your existing soil nutrient levels helps you apply the right nutrients in the right quantities - ensuring optimum growth and reducing losses.
Everyone should:
Use soil testing regularly to optimise fertiliser and lime use (pH, P, K, Mg)
Maintain pH (liming / gypsum as needed)
Use robust information for nutrient planning, e.g. RB209
Match fertiliser type to soil type to increase N-use efficiency and minimise NH₃ emissions
Select application methods that match manure/organic material to soil type
Going beyond the norm:
Enhance soil monitoring beyond pH, P, K - and use the information
Take a wider approach to crop nutrition than just NPK
Improve soil physical condition
Well-structured soils are usually free-draining and support good plant growth. Soils free from compaction help minimise the impacts of flooding and drought.
Everyone should:
Ensure drains are present and maintained where needed
Assess soil structure regularly using visual methods such as VESS
Put a remediation plan in place if you cause damage
Use lightweight vehicles wherever possible
Minimise compaction - use appropriate tyres and tyre pressures
Assess soil conditions when cultivating and stay within the workability window
Minimise and optimise cultivation intensity - allow flexibility season by season
Ensure you have appropriate storage to allow harvesting flexibility
Going beyond the norm:
Take a targeted approach to compaction through sub-soiling, as needed in the right conditions
Use in-season weather and soil monitoring for good harvest risk assessment
Consider ground-penetrating radar to identify and target deeper compaction
Consider controlled-traffic approaches
Consider variable-depth cultivations
Manage run-off in the field
Water flowing across fields is the primary cause of soil erosion, and it carries nutrients and pesticides away from where they're most valuable to you.
Everyone should:
Incorporate designed buffer strips alongside watercourses, ditches and hedges
Minimise run-off and erosion risk through the direction of cultivation
Capture run-off and sediment in-field
Going beyond the norm:
Minimise run-off and erosion risk through direct drilling / strip tillage and/or under-sowing
For maize, oversow with grass to provide soil cover at or after harvest
For potatoes, use a planter with a dyker to divot the furrow and prevent run-off
Consider links to streams, ditches and waterways, and break pollution pathways where possible
Maintain soil organic matter and biological activity
Soil organic matter and biology are crucial to soil health. They support the physical and chemical processes in soil, making it more resilient to waterlogging and compaction.
Everyone should:
Keep soil covered over winter wherever possible - no bare ground
Incorporate crop residues wherever possible, or return via manures
Add off-farm organic matter (sludges, digestate, compost)
Going beyond the norm:
Take organic-matter measurements - understand the results and act on them
Track your own biology - count earthworms
About the contributors
WWF is one of the world's largest independent conservation organisations, active in nearly 100 countries. With food production at the centre of many environmental issues, WWF-UK and Tesco have come together with a shared ambition: to make it easier for customers to access an affordable, healthy and sustainable diet. wwf.org.uk/basket-metric
UK Soil Health Initiative aims to bring together understanding of soil health and management to help farmers improve their soils - supporting productive farming alongside environmental benefit. All six guides are at cfeonline.org.uk.
All six soil health guides, covering most of the UK agricultural sector, are available online here. To read the original guide, for rotations with root crops and maize, click here.
First steps for improving soil health
Well-managed, functioning soils are the foundation of all production systems. Soils with good structure and diverse, abundant flora and fauna provide the nutrients plants need to grow, and form the essential building blocks of productive farms. Such soils best support good yields and reduce environmental risk from unnecessary losses to air and water.
There is no one-size-fits-all blueprint. Effective soil management builds on your existing practice, farming system, soil type, climate and cropping. There are options for every farmer to enhance both productivity and soil health.
Managing soils well can be complex, but this guide brings together some first steps for rotations with root crops and maize - to help you understand your soils and plan how to improve their health.
Three things to consider
On rented land, engage with the landlord about what's possible across the whole rotation
Put long-term soil health above short-term profit
Consider controlled-traffic approaches
Three things to avoid
Knowingly breaking the law, e.g. excess N applications
Allowing soil erosion from fields or part-fields
Causing topsoil or subsoil compaction wherever possible
For each area below, the first list is what everyone should do; the second is going beyond the norm.
Know your site and soils
Understanding the soils across your land - and how factors like slope and proximity to watercourses influence risk - helps you manage the farm to promote soil health.
Everyone should:
Know the land-use constraints of the farm, and the impact of variability - hydrology, slope, erosion risk
Know your soil texture, including subsoil
Understand the catchment-scale context - NVZ, diffuse P risks
Record soil observations and data so you can refer back easily
Make sure everyone on the farm understands the importance of soils
Going beyond the norm:
Develop on-farm skills that promote effective soil management
Spend time in peer-to-peer learning and engage in research
Monitor the system as a whole - grass production, livestock and crop quality, water quality - and use the information
Consider soils across the whole rotation, introducing practices to increase resilience for the more difficult cropping phases
Crop management
More crop rotations can support soil health improvement. Crops that replenish soil structure, organic matter and nutrient balance within a rotation help improve your soil.
Everyone should:
Use at least a three-crop rotation
Ensure the rotation is long enough for soil-borne pest management
Manage nematode risk
Choose appropriate varieties, particularly early-maturing ones
Apply fungicide, herbicide and fertiliser in a targeted way - use precision approaches
Going beyond the norm:
Maximise cropping diversity - extend the rotation
Don't use high-risk fields for high-risk crops
Improve cropping system design to support pollinators and predators of crop pests
Use cover cropping to improve soil structure and manage pests
Introduce trees as shelter belts and hedges, and consider agroforestry
Optimise nutrient management
Understanding your existing soil nutrient levels helps you apply the right nutrients in the right quantities - ensuring optimum growth and reducing losses.
Everyone should:
Use soil testing regularly to optimise fertiliser and lime use (pH, P, K, Mg)
Maintain pH (liming / gypsum as needed)
Use robust information for nutrient planning, e.g. RB209
Match fertiliser type to soil type to increase N-use efficiency and minimise NH₃ emissions
Select application methods that match manure/organic material to soil type
Going beyond the norm:
Enhance soil monitoring beyond pH, P, K - and use the information
Take a wider approach to crop nutrition than just NPK
Improve soil physical condition
Well-structured soils are usually free-draining and support good plant growth. Soils free from compaction help minimise the impacts of flooding and drought.
Everyone should:
Ensure drains are present and maintained where needed
Assess soil structure regularly using visual methods such as VESS
Put a remediation plan in place if you cause damage
Use lightweight vehicles wherever possible
Minimise compaction - use appropriate tyres and tyre pressures
Assess soil conditions when cultivating and stay within the workability window
Minimise and optimise cultivation intensity - allow flexibility season by season
Ensure you have appropriate storage to allow harvesting flexibility
Going beyond the norm:
Take a targeted approach to compaction through sub-soiling, as needed in the right conditions
Use in-season weather and soil monitoring for good harvest risk assessment
Consider ground-penetrating radar to identify and target deeper compaction
Consider controlled-traffic approaches
Consider variable-depth cultivations
Manage run-off in the field
Water flowing across fields is the primary cause of soil erosion, and it carries nutrients and pesticides away from where they're most valuable to you.
Everyone should:
Incorporate designed buffer strips alongside watercourses, ditches and hedges
Minimise run-off and erosion risk through the direction of cultivation
Capture run-off and sediment in-field
Going beyond the norm:
Minimise run-off and erosion risk through direct drilling / strip tillage and/or under-sowing
For maize, oversow with grass to provide soil cover at or after harvest
For potatoes, use a planter with a dyker to divot the furrow and prevent run-off
Consider links to streams, ditches and waterways, and break pollution pathways where possible
Maintain soil organic matter and biological activity
Soil organic matter and biology are crucial to soil health. They support the physical and chemical processes in soil, making it more resilient to waterlogging and compaction.
Everyone should:
Keep soil covered over winter wherever possible - no bare ground
Incorporate crop residues wherever possible, or return via manures
Add off-farm organic matter (sludges, digestate, compost)
Going beyond the norm:
Take organic-matter measurements - understand the results and act on them
Track your own biology - count earthworms
About the contributors
WWF is one of the world's largest independent conservation organisations, active in nearly 100 countries. With food production at the centre of many environmental issues, WWF-UK and Tesco have come together with a shared ambition: to make it easier for customers to access an affordable, healthy and sustainable diet. wwf.org.uk/basket-metric
UK Soil Health Initiative aims to bring together understanding of soil health and management to help farmers improve their soils - supporting productive farming alongside environmental benefit. All six guides are at cfeonline.org.uk.