Natural gypsum and anhydrite as fertilizers
(Calcium sulphate)

We bulk deliver our calcium and sulphur-rich sulphate fertilizer, Minerosul 40®. Minerosul 40®.
Minerosul 40® Based on a natural blend of gypsum and anhydrite, our Minerosul 40® fertilizer is supplied as minigranules (0-2 mm). It is easy to apply using a fertilizer spreader. Gypsum is a natural mineral that does not modify the pH of soil. Calcium serves as an essential building block for creating bridges between clay and humus (clay-humus complex), thereby improving soil structure. As for sulphates, they are absorbed by plants directly, providing them with the sulphur they need. 

Sulphur and plant health:

• Sulphur belongs to the group of main nutrients
• Sulphur is essential for the synthesis of sulphur-containing amino acids such as cysteine and methionine and therefore has an influence on the entire protein biosynthesis process
• Sulphur improves nitrogen efficiency
• Sulphur is important for the formation of S-containing secondary plant substances (e.g. glucosinolates in rapeseed)
• Sulphur is a component of vitamin B1 (component of cereal grains, legumes)
• A sufficient presence of sulphur is essential for symbiotic nitrogen (N) fixation

For sulphur deficiency:

• the N utilisation in the plant decreases

• the N cycle in the plant is virtually blocked

• the N/S ratio increases and the nitrate content rises

• the number of nodules and the N-fixing capacity decreases

Sulphur dynamics in the soil:

• Sulphur is largely organically bound in the soil

• Uptake - after mineralisation - predominantly as SulphateIon (SO₄ ²) > Water-soluble > Rapidly translocated to the soil as nitrate

• Capillary water rise from the subsoil can cause an increase in the sulphate content in the root area of the plants (deep soils, e.g. loess and clay soils)

• Natural gypsum/anhydrite rocks with a composition similar to that of Minerosul 40® release the sulphate content partly promptly and partly with a time delay. This also supports the soil structure

Sulphur deficiency sites:

• Light soils, shallow soils, especially with higher rainfall

• Cold, slow-moving locations

The sulphate content of Minerosul 40® is >40%.