A spraying machine includes a machine body, a support frame, and a spraying portion. The support frame includes a horizontal frame having a length along a left-right direction, and a pair of vertical frames and each having a length along an up-down direction, and protruding downward from both ends of the horizontal frame. The spraying portion is supported by the support frame, and sprays a spraying material. The support frame is supported by the machine body to be rotatable around a rotation axis passing through a fulcrum portion provided on the horizontal frame and extending along a front-back direction, while maintaining a relative positional relationship between the pair of vertical frames and the horizontal frame.

A tractor hydraulic adaptor, system and process to hydraulically power a hydraulic attachment on a tractor is disclosed. The hydraulic adapter includes a hydraulic intensifier powered by a tractor's power take off shaft to drive a hydraulic attachment coupled to a tractor's front-end loader. The hydraulic intensifier draws at a low-pressure hydraulic fluid and feeds the hydraulic fluid at a higher pressure to the hydraulic attachment.

A tractor for agricultural use includes a chassis, which connects a front tractor part and a rear tractor part to one another via a connecting element, a driver's seat in the region of the rear tractor part, a drive and at least four wheels. The connecting element of the chassis, which connects the rear and the front tractor parts to one another, is disposed at least 60 cm above the driver's seat and extends substantially horizontally up to the front tractor part. The driver can thus look to the right, and also at an implement disposed behind the front tractor part, below the connecting element. This enables precise maneuvering when tilling the soil for rows of plants.