Metazachlor is widely used as a selective pre-emergence herbicide in agriculture, particularly for controlling annual grasses and certain broadleaf weeds in crops such as cereals, oilseed rape, and soybeans. It is effective in managing weed growth before they emerge from the soil, reducing competition with the crop during early development stages. The solution formulation allows for uniform application through standard spraying equipment, ensuring consistent field coverage. It is especially valued in integrated weed management programs due to its favorable environmental profile and low persistence in soil. Metazachlor is often applied in autumn or early spring, depending on the cropping system, and contributes to higher crop yields by maintaining a clean and competitive growing environment.