AMENDMENT 30 CAL-30 YESO-30 MAGNESIUM is a mixture of Calcium Carbonate, Gypsum, and Magnesium Silicate, added with phosphate rock. It serves as an inorganic soil conditioner.


For the application of an adequate dose of 30 Cal-30 Gypsum-30 Magnesium it is advisable to do a previous soil analysis. As a general rule, it is applied at a rate of 0.5 tons of product per hectare. This amount depends on the crop.



Mineral Source Calcium carbonate (CaCO3), Gypsum (calcium sulfate), Magnesium silicate (Mg6Si4O10H8), Phosphoric rock
Use Inorganic soil conditioner
Elements that contributes Phosphorus (P2O5) - Calcium (CaO) - Magnesium (MgO) - Sulfur (S) - Silica (SiO2) - BORO (B)
Physical State Powder
Color Grayish
Alkalinity Positive
Maximum humidity 5 %



Total phosphorus of slow assimilation (P2O5) 3,0%
Calcium soluble in acid (CaO) 25,0%
Magnesium soluble in HCl (MgO) 12,0%
Total sulfur (S) 5,0%
Silicon (SiO2) 16,0%
Total boron 0,023%


It must be applied at least 30 days before sowing to allow an efficient reaction in the soil. It is recommended to incorporate with rake. In permanent crops it is recommended to apply it twice a year.