Venturi nozzles are frequently used with which type of products?

Venturi nozzles are designed to create a vacuum effect that helps in mixing liquids and can facilitate the application of systemic products. Systemic products are designed to be absorbed by the plant and translocated to various parts, which typically requires a uniform and consistent liquid application to ensure proper uptake. Venturi nozzles, with their ability to mix and propel liquid under pressure efficiently, are particularly beneficial for delivering these types of products.

In contrast, granular products do not require the same level of mixing or delivery mechanism, as they are spread rather than sprayed. Contact products, which act locally where they are applied, also do not benefit from the unique capabilities of Venturi nozzles as much as systemic products do. Lastly, while some fertilizers might fall under systemic classifications, not all fertilizers are designed to work effectively with a Venturi nozzle system, which makes the answer specific to systemic products.