Agricultural runoff consists of a mixture of compounds that serve as nutrients. the two primary nutrients are and

Nitrogen and phosphorus

Agricultural runoff is the water from rain or irrigation that flows away from farm fields due to the inability of the soil to absorb or retain the water. Agricultural runoff flows and absorbs pollutants, which are then deposited into water bodies such as ponds, lakes. Pollutants such as soil particles, pesticides, heavy metals, salts, and nutrients such as nitrogen and phosphorus are present in agricultural runoff.