Which system is commonly employed for applying liquid herbicide in small areas?

The spray tank is a commonly employed system for applying liquid herbicide in small areas due to its efficiency and precision in application. This system allows for controlled dispensing of herbicides, enabling the user to evenly distribute the liquid over the target area, which is particularly important when dealing with sensitive ecosystems or ensuring that the herbicide reaches the intended plants without excessive runoff.

In addition, spray tanks can be easily maneuvered in smaller spaces, making them ideal for localized treatments. They can be equipped with various nozzle types to further refine the application method, ensuring that the herbicide is delivered in the most effective manner, whether that be as a fine mist or a heavier spray, depending on the situation.

While roller pumps, agitation systems, and drip systems have their specific uses in various contexts, they are not as commonly utilized for small-area applications of liquid herbicides. For instance, roller pumps are better suited for higher volume applications or larger areas, agitation systems are generally used to keep solutions mixed, and drip systems are often used for irrigation rather than direct herbicide application. Thus, the spray tank stands out as the optimal choice for targeted herbicide delivery in small areas.