Calcium (Ca) is a metallic element characterized by low electronegativity and high reactivity. It rarely occurs in its pure form in nature and is usually found combined with oxygen and other elements. The inorganic monoatomic Ca cation is referred to as Ca²⁺. Although calcium is an essential...

The article describes the experience of obtaining organo-mineral fertilizers on the basis of Guliob phosphorus and cotton plant waste. It is proved that organo-mineral fertilizers can be obtained by ecologically safe composting method on the basis of cotton plant waste and low-quality Guliob...