15 May 2023 --- Metsä Board and Finnish circular economy company, Soilfood are reusing fiber waste to improve soil quality by recycling wood fiber nutrients back into soil, which stores the fiber wood carbon. Soilfood produces wood-based soil improvement fibers from fiber fractions made as side streams at Metsä Board’s cardboard mills. The fibers are said to increase the fertility of the soil and improve its water retention. The use of wood fiber is also an effective method of water conservation as it can reduce the run-off of phosphorus from fields by up to 50%. “Together with farmers and our industrial partners, we are replacing virgin raw materials with recycled ones and using natural resources wisely. The demand for recycled nutrients and soil improvement fibers has grown strongly in recent years. The growth is currently limited mainly by the availability of raw materials,” says Sampo Järnefelt, chief commercial officer at Soilfood.
