This invention relates to a machine designed to perform a complete spray treatment of agricultural land by incorporating in the soil liquid substances such as plant protection products, weedkillers, fertilisers and soil conditioners.
The machine according to the invention is suitable in particular for treatments, such as fumigation of agricultural land, which involve incorporating into the soil liquid substances that subsequently evaporate and perform their function in the gaseous state.
Said machine is characterised in that it comprises first means (3) designed to spray said soil and second means (5) designed to compact said sprayed soil, thus creating a compact crust which obstructs the escape of the vapours generated by the evaporation of said liquid sprayed by said first means (3).
According to a preferred embodiment, the machine of the invention, further comprises third means (8) designed to till the soil positioned immediately downstream of said first spraying means (3) and upstream of said second compacting means (5).