Global market economy and high competition in prices has led the agricultural sector in Brazil to search for more efficiency and a better information control at field level. Furthermore, the high pressure for natural resources conservation and less soil pollution is another factor to influencing new mentalities to operate th e production process. Precision agriculture is a being used as a form to reach efficiency through the site specific management of crops. It uses GIS, GPS and Remote Sensing technologies to produce and manage soil and crop variability maps in order to optim ise the use of fertilizers and chemicals on agriculture. To study and understand the causes for crop yield and soil variability problems is a challenge to soil and crop management, mainly in nutrition and spraying application, where the site specific manag ement using precision farming technology will have a very important role in the near future. Geotechnologies such as GIS, GPS and Remote Sensing are the key to manipulate the huge amount of information generated at site specific level for each field withi n a farm. Some experiments are being conduced in order to introduce this technology in Brazil, and the data is being processed using geostatistics, GIS and remote sensing techniques. The main goal of this presentation is to show the experiments, the method ology used and some results
