Improve the efficiency of your farm by optimising the nutrient availability of the soil. Use our range of granulated Calcium based fertiliser products including Calcium lime, Magnesium lime and Calcium Sulphate.
Calcifert; Granulated limestone and calcium sulphate for agricultural use
The Calcifert® range offers granulated products to the agricultural industry. Calcifert provides essential nutrients to grassland and crops in a format farmers apply using conventional fertiliser spreading equipment.
- Calcifert Products
- Product uses
- Product information
- Mineral information
- Case Studies
- SPREADER SETTINGS AND APPLICATION RECOMMENDATION
- Stockists
- Documentation
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Calcifert Lime
Quickly control soil pH with our highly reactive granulated lime. You can spread this fertiliser all year round.
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Calcified Lime +
High specification soil conditioner based on Calcifert Lime, complete with humates, trace elements and more!
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Calcifert Sulphur
One of the purest calcium sulphate fertiliser products on the market.
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Calcified Sulphur+
Calcified Sulphur+ is a high specification soil conditioner which we based on Calcifert Sulphur, complete with humates, trace elements and more.
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Calcifert Mag
Ideal for soils that have a pH imbalance and are also lacking in magnesium.
A soil with a low pH does not use fertilisers efficiently. A soil at pH of 5.9 has the potential to lock up 48% of phosphorus and reduce nitrogen utilisation by 11%. Considering both farm profitability and environmental sustainability fertiliser must be utilised efficiently, Calcifert products can help achieve this aim.
Agricultural and horticultural nutrient
Calcifert Lime, our fast-acting agricultural granulated limestone, is extremely popular with farmers, as are our Calcifert Sulphur and Calcifert Mag products which supply much-needed nutrients to the soil.
You can optimise the nutrients in your soil with our range of granulated lime, magnesium lime and calcium sulphate products that have:
- Low application rates
- Highly reactive granules
- Applied with a standard spreader
All of our range is designed to be implemented via a conventional fertiliser spreader, making it quick and easy to treat either whole fields or specific areas. Calcifert supplies a range of easy-to-apply granulated products for the agricultural and horticultural sectors.
Soil control and optimising crop solutions
Our customers use the Calcifert product range in a variety of soil and crop applications, such as:
- Neutralising soil acidity
- Increase crop quality and yield
- Address Calcium deficiency in the soil and plants
- Strengthen the plant’s physical structure
- Increase grass protein levels
- Improve the digestibility of grass forage
- Improve soil structure and workability
Fertiliser for a large variety of crops
LKAB Minerals offers the right nutrient for your soil, helping you to improve the quality and yield of your produce. Examples of crops that can use our products are:
- Vegetables
- Root crops
- Brassicas
- Orchards
- Grass and clover swards
- Grassland

Calcifert benefits
Farmers use our Calcifert products because it:
- is easy to apply
- can be spread where and when it suits the landowner
- is especially useful for spot treatment of specific areas
- requires a fraction of the traditional lime amount
- can be used by farmers themselves = removing waiting time & cost for specialist contractors
Calcifert product range
All products in the Calcifert range are:
- using a pure raw material
- ground into a very fine powder
- mixed with a soluble binder
- uniform granules
- instantly dissolved upon contact with water
Product name | Product type | Information |
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Calcifert Lime | Granulated Calcium Lime | Quickly control soil pH with our highly reactive granulated lime. Possible to spray all year round. |
Calcified Lime+ | Granulated Calcium Lime combined with trace elements, humates and plant bio-stimulants | High specification soil conditioner based on Calcifert Lime, complete with humates, trace elements and more! |
Calcifert Sulphur | Granulated Calcium Sulphate | One of the purest calcium sulphate products on the market, for arable and grassland soils deficient in calcium and sulphur |
Calcified Sulphur+ | Granulated Calcium Sulphate combined with trace elements, humates and plant bio-stimulants | High specification soil conditioner based on Calcifert Sulphur, complete with humates, trace elements and more. |
Calcifert Mag | Granulated Magnesium Lime | Ideal for soils that have a pH imbalance and are also lacking in magnesium. |
Delivery Calcifert nutrient products
All Calcifert products are supplied conveniently packaged in non-returnable 600 kg bags for ease of handling.
Calcifert origin
Our fertiliser range is best known for its flagship granulated lime product, Calcifert Lime, a highly reactive and pure agricultural lime product, made using 100% British lime from the Peak District. This lime is well-proven to effectively reduce soil acidity and regulate pH in grassland and arable soils.
We make Calcifert Sulphur from a source which supplies Calcifert with Calcium Sulphate, which has a 98% purity.
Calcifert specifications
LKAB Minerals makes all products for high purity sources using a water-soluble organic binder. For detailed information, please see our specification sheets and PSDS.
Accreditation
Calcifert products are accredited with the AgLime Quality Standard (AQS), an industry initiative targeted to guarantee the regulatory quality of AQS certified agricultural liming products on the UK market.
We have gathered a range of different projects and created a Case Study for each of these. Of course, our experience is more extensive than we can present here. You can always contact us for technical advise tailor-made for your situation.
- Calcifert Sulphur Boosts Grass Silage
- Calcifert Sulphur Regular application to improve Grass Silage
- Tiln Farm Trials
- Clubroot control using Calcifert Lime
- Spring application of Calcifert Sulphur ideal for OSR
- Tackling sulphur deficiency in spring barley
- Calcifert Sulphur Boosts Straw Yields
- Calcifert Lime Grassland Silage Case Study
- Calcifert Sulphur Improves Winter Wheat Crop
- Treating salt affected glasshouses with Calcifert Sulphur
- Calcifert Sulphur Reducing Magnesium
You can apply our Calcifert products via a conventional fertiliser spreader. Independent tests have shown that Calcifert granulated products can be accurately spread up to 36-metre bout widths.
Spreader setting results
Trials with a range of leading fertiliser spreaders have shown that Calcifert Lime spreads to 36 metres and has a Co-efficient of Variance of less than 3.7%. We have tested:
- Amazone ZA-M
- Kuhn Axis
- KRM Ex trend
- Vicon RSXL
Calcified Lime+ has the same product characteristics as Calcifert Lime, and we recommend following the same spreader setting for these products.
Calcifert Sulphur has a similar spread pattern and has been separately tested with a range of fertiliser spreaders. For Calcified Sulphur+ products, we recommend using the Calcifert Sulphur spreader settings.
Trials with Calcifert Mag show that this product successfully spread to up to 36-metre bout widths.
Calcifert application recommendations
For your convenience, we have prepared guidelines for the recommended application of Calcifert Lime for different soils and field pH. This information is based on crop trials. Details can be found in the application recommendations sheet as available for download from below list.
Speader settings & application recommendation
You can get your Calcifert products via a wide number of stockist. Check for a supplier in your area.
- Acorn Arable Ltd
- ACT Ltd
- Agrii
- Agrovista
- Bartholomews
- Bodle Bros
- Clynderwen & Cardiganshire Farmers Ltd
- Cobb Agri Ltd
- Corwen Farmers Ltd
- E. George & Son
- ForFarmers UK
- Fram Farmers
- Frontier Agriculture
- Glasson Grain
- Gleadell Agriculture
- Glenbrook Agri Ltd
- Greenbest
- Helm Fertiliser
- HL Hutchinsons
- Indigrow
- Jack Lamb
- Mole Valley Forage Services
- NWF Agriculture
- Openfield Agriculture
- Origin UK & NI
- Pearce Seeds
- PRAg
- RD Chesters
- Rigby Taylor
- Rootwise
- Soil Fertility Solutions
- South West Lancashire Farmers
- Spunhill
- Target Fertilisers
- The Glenside Group
- Walter Bailey
- Wynnstay Agriculture
- Zantra