Chalk "Komstroy", 1 kg

This substance is a crushed and dried saso3 of natural origin. It contains 96 % SASO3 and trace elements.

equally successfully chalk can be used as a fertilizer that can reduce the excess acidity of the soil. Moving microelements - Fe, Al, Mn weaken the roots of plants, and also form insoluble compounds with phosphorus, which is negligent from the introduced phosphorus fertilizers. At the same time, chalk distributes useful elements in the soil layer and helps plants get them in sufficient quantities. Thanks to thin grinding, technical chalk is mixed well with the soil and there is no insoluble lumps in the soil.

the norm of introduction of a chalk from 250 to 500 g per 1 m2 depending on its initial pH.

chalk It does not dissolve in water, so it remains in the soil for a long time. Making technical chalk is permissible regardless of the season.