Biochar Effects on Nutrient Leaching ,
Major, J., Steiner C., Downie A., and Lehmann J.
, Biochar for Environmental Management: Science and Technology , London, UK , p.271-288, (2009)
Biogenic calcium phosphate transformation in soils over millennial time scales,
Lehmann, Johannes, Sato Shinjiro, Neves Eduardo G., Solomon Dawit, and Liang Biqing
, Journal of Soils and Sediments, 06/2009, Volume 3, Number 3, p.194 - 205, (2009)
Abstract