This document discusses sustainable agriculture. It defines sustainable agriculture as farming that meets current needs without compromising future generations' ability to meet their needs. Key components include increasing productivity and livelihoods while protecting natural resources. Features include building soil, managing water wisely, and minimizing pollution. Methods include agroforestry, crop rotation, and organic farming. Principles are conserving land and resources while being technically and economically viable. Precision agriculture uses tools like GPS and remote sensing to apply precise amounts of inputs in the right places and times.