@book{ Solr-199452, title = {Advances in agronomy . 103}, series = {Advances in agronomy ;}, author = {Sparks, Donald L.}, editor = {Sparks, Donald L.}, address = {Amsterdam}, publisher = {Elsevier Academic Press}, year = {2009}, note = {englisch}, url = {http://wwwzb.fz-juelich.de/contentenrichment/inhaltsverzeichnisse/bis2009/ISBN-978-0-12-374819-5.pdf} }