Abstract: The invention relates to a field containing artificial grass consisting of a substructure and a top layer provided thereon, wherein the top layer is a nutrient medium (50) which contains regularly spaced fibers (1) which, when seen in the longitudinal direction of the fiber, extend further into the ground than above the ground, with natural grass (2) seeded between the fibers in a nutrient medium (5) on the substructure (3). The invention also relates to artificial fibers to be used with a field containing artificial grass wherein the fibers have a length of 20 60 cm. The invention further relates to a device for inserting artificial fibers into the ground, said device consisting of one or more planting pins (25), which are disposed perpendicularly to a frame (40), one or more tubes (20) being placed in a sliding frame (41) for supplying the fibers (30) to a location under the planting pin (25).

Abstract: The invention relates to a device (51) for inserting elongated artificial grass fibres (30) into the ground. The device (51) is provided with a frame (40), which is movable across the ground and which has at least one planting pin (25) being movable up and down in the frame (40), as well as with means for placing an artificial grass fibre (30) to be inserted into the ground under said planting pin (25), in such a manner that the fibre in question can at least partially be pressed into the ground by the planting pin (25) subsequently moving downwards. Preferably the device is provided with a plurality of planting pins (25), which are arranged in a row extending transversely to the intended direction of movement of the device, and which can jointly be moved up and down with respect to the frame by setting means.