A simple model for rapid gypsum determination in arid ...
· Soil gypsum occurs in various forms in the field, according to the mode of formation (Reda 1995): small and large crystals, veins, soft powder or spots, patches, segregations or threadlike, and gypsum layer. An accurate measurement of gypsum in soil is very important because it affects many soil properties, which in turn influence management, classifiion, .