Sustainable Agriculture explains the concepts and long-term benefits of sustainability, using systems such as permaculture, biodynamics, organic farming, agroforestry, conservation tillage, and integrated hydroculture. It examines important issues such as monoculture versus polyculture, and problems such as land degradation and climatic change, acid rain, salinity and chemical waste. The author looks at the utilisation of hybrids and selection criteria for plants and stock and preparing a farm for droughts and floods.