Ammonium

Ammonium is a positively charged ion (or molecule) formed when ammonia (NH₃) reacts with water, producing an ammonium ion (NH₄⁺). It is commonly found in fertilizers, wastewater, and the environment. In agriculture, ammonium provides a nitrogen source essential for plant growth. In nature, it results from the decomposition of organic matter and waste. Since ammonium can convert to other nitrogen forms, such as nitrate, it plays a key role in the nitrogen cycle. Its presence affects soil fertility and water quality, making understanding ammonium important for environmental management.