An evaluation of land suitability for forest fertilization with biofuel ash on organic soils in Sweden

The present annual production of biofuel ash in Sweden, of acceptable quality for forest fertilization, is 250,000-300,000 tonnes. If it were desired to fertilize all the sites (190,000 ha) identified in this study with 5000 kg per ha, it would require 3-4 years of the current annual production of bio-ash.