QC LOAM SOIL A VKI STANDARD

Сельскохозяйственное использование

Calcareous substances contain mostly calcium carbonate or other calcium salts. A soil that contains more than 2% calcium carbonate (often dong with magnesium carbonate) and produces vigorous effervescence when treated with 0.1N hydrochloric acid, is termed calcareous soil. Calcareous soil is classified depending on the calcium carbonate content as slightly calcareous, moderately calcareous and highly calcareous.
Brown calcareous soils are well-drained soils with a medium to heavy texture. They are slightly acidic in the surface layers and calcareous underneath and are developed over limestone or calcareous sandstone.