Agricultural products from crops form a large part of every person´s diet. Producing food of sufficient quantity and quality is essential for the well-being of the people anywhere in the world. Agricultural plants, as living organisms, require water and nutrients in order to grow and are sensitive to extreme weather phenomena, diseases and pests. Remote sensing can provide data that help identify and monitor crops. When these data are organised in a Geographical Information System along with other types of data, they become an important tool that helps in making decisions about crops and agricultural strategies.