Used as a key source of manganese in agricultural and horticultural applications, especially in correcting manganese deficiency in soils and crops. It is applied in fertilizers to support plant growth, particularly in cereal grains, citrus, and leafy vegetables, where manganese plays a vital role in photosynthesis, enzyme activation, and nitrogen metabolism.

Commonly included in animal feed supplements to prevent manganese deficiency in livestock, promoting proper bone development, reproduction, and overall metabolic health.

In industrial settings, it serves as a precursor in the production of other manganese compounds and is used in the manufacturing of dry cell batteries, ceramics, and fungicides. Also utilized in water treatment processes and as a catalyst in certain chemical reactions.