Book Description Humic substances are essentially everywhere in nature They are vital to issues in water and land conservation, such as plant nutrition, pH regulation, pollution control, water purification, and the improvement of soil conditions Asa result, this book's audience spans across many disciplines, including agriculture, biology, оджсщ soil science, chemistry, biochemistry, and engineering This is the sixth book in a series of edited volumes deriving from the Humic Substances Seminars organized by Ghabbour and Davies and held every year at Northeastern University The book synthesizes the latest international research on humic substances and provides researchers, professionals, and graduate students with vital information emerging from the field The International Humic Substances Society (~500 members) does not have a journal and these annual editions also serve the purpose of keeping the society members current with the research.  Гарантия2005 г 286 стр ISBN 1591690315.