This supplement to the first volume in the series, Forages: An Introduction to Grassland Agriculture, Sixth Edition, serves as a reference to the biological and environmental fundamentals of managing forages and grasslands in the context of social and sustainable values. Specific sections cover forage plants, ecology, species, systems, production and management, improvement, quality, harvesting and utilization, and pasture management. Barnes et al. (American Society of Agronomy, and agronomy, Iowa State U., U. of Missouri, and Mississippi State U.) bring together 46 chapters by researchers in agronomy, animal science, plant sciences, agriculture, and related fields from the US and Canada. This edition has been reorganized into nine sections and is aimed at practitioners, researchers, and advanced students. Knowledge of basic principles and terminology is assumed. Annotation ©2007 Book News, Inc., Portland, OR (booknews.com)