The Leaf Reducer is a 100% sustainable method that converts leaf waste into a soil improver. The leaf is pulverized into a fraction that is absorbed by the soil. There are no disposal costs and landfill costs, which ensures a large CO2 reduction. The method can be used in urban areas, for example in parks and lawns. The working height is adjustable, so that areas with short grass as well as long grass can be treated. The outflow is determined with the hydraulically driven disc unit behind the machine. The outflow can be regulated right behind the machine, to the left or to the right.