This method injects the fumigant into the ground. Commonly done with narrow, knife-type shanks with tubes attached to deliver the fumigant and is immediately covered after application with film or plastic to trap the fumigant for efficacy and safety.
Drip method utilizes the drip irrigation system to deliver the fumigant with irrigation water providing distribution in the soil.
This method is similar to Tarped with the fumigant injected into the ground with narrow, knife-type shanks. Instead of plastic tarping, the soil is sealed after application with the proper equipment to compact the top of the soil, trapping the fumigant for efficacy and safety.