What equipment is often used for applying liquid fumigants in soil?

The use of power-mulch or rotary tillers for applying liquid fumigants in soil is appropriate because these machines not only facilitate the application of the fumigant but also aid in soil incorporation. The tillers mix the fumigant effectively into the soil, creating a more uniform and effective treatment and ensuring that the fumigant penetrates the soil adequately. This method increases the efficiency of the fumigation process by optimizing the dispersion of the chemical throughout the target area.

In contrast, relying solely on backhoes or spray tanks may not provide the same level of soil integration. Hand-held sprayers could be used for smaller areas or spot treatments, but they lack the capability to incorporate the fumigant into the soil to the same extent as a rotary tiller. Thus, power-mulch or rotary tillers are specifically designed for this purpose and are preferred equipment for liquid fumigant applications in soil.