SELF-SURVEYING - A STRATEGY FOR EFFICIENT MAPPING OF THE SPATIAL VARIABILITY OF TIME CONSTANT SOIL PARAMETERS

Precision Farming addresses the small-scale variability of soil fertil ity parameters in the field and consequently transforms them into vari able fertilizer applications. Geocoded information about spatially var iable soil characteristics is required in a close enough distance of 3 0 to 50 meters to meet the spatial correlation which is a prerequisite for the interpolation of data in order to obtain Digital Agro Resourc e Maps (DARMs). The self surveying approach efficiently provides geoco ded information of time constant soil parameters, such as geomorpholog y, and organic matter and clay contents in optional density. It combin es Gobal Positioning System (GPS) navigation and positioning with huma n sensory capabilities.