Bot, Alexandra The importance of soil organic matter : key to drought resistant soil and sustained food and production / by Alexandra Bot and Jose Benites. - Rome : FAO, 2005. - xi, [80] p. : ill. ; 30 cm. - FAO soils bulletin ; 80 . Includes bibliographical references. ISBN: 9251053669 ISSN: 02532050 Subjects--Topical Terms: Soils--Organic compound content.Soil productivity.