books.google.co.uk - The only book to completely define and explore the genesis, extraction, properties, and impact of humic matter on agriculture, industry, and the environment, Humic Matter in Soil and the Environment delves into the issues and controversies associated with produced and natural humic compounds. It assesses...http://books.google.co.uk/books/about/Humic_Matter_in_Soil_and_the_Environment.html?id=oIh9_U0Fo_cC&utm_source=gb-gplus-shareHumic Matter in Soil and the Environment
