Production of food fiber and fuel is vital for humanity, and as the world population continues to rise, demands on these resources is ever increasing. In a context of growing worldwide concern about sustainability and environmental impacts of cropland, grassland and forestry practices, this textbook provides an introduction to the processes that define the ecology and environment of plant production. Core principles are examined such as soil-plant relationships, genetic manipulation and diversity, yield and water requirements, as well as physical factors such as solar radiation, temperature and weather. This edition is fully updated with new chapters on climate change and biofuels.