Stretched limits of disc injection with a working width from 2.4 to 6 m : from 4 to 10 discs (inter-row 60 cm), mixed use grassland and stubble, possibility of using a grinder-distributor, emptying rate from 5 m³/ha, high quality of work, quality crosswise distribution above 10 m³/ha, side spreading of slurry up to 15 cm, depth of work from 6 to 10 cm, no more odours or nitrogen losses.