Calstem is a line of fertilizers formulated in water-soluble powder with acid reaction.
Calstem is distinguished from any other water-soluble NPK fertilizers because in addition to nitrogen, phosphorus, potassium and microelements. It also provides an important amount of assimilable calcium, not easy to integrate in an acid fertilizers.

The considerable acidity of Calstem fertilizers pH 3.0 ± 0.5 improves solubilization and availability of the mineral elements. They also help to keep the fertigation systems clean, avoiding insolubilization and precipitation of the mineral elements.

Greenhas Group has created this specific line of water soluble NPK to fully and effectively feed crops throughout the production cycle, by providing the necessary fertilizing elements at each stage. Using a single product.
This allows to simplify the fertigation process, employing the minimum the number of products.