A Field-level Geographic Information System (FIS) for Research in Precision Agriculture

摘要

A field-level geographic information system (FIS) designed specifically for research in precision agriculture has been under development at Kansas State University for several years. This paper summarizes the analytical functions provided by FIS and gives Mo examples to illustrate the applications of FIS in precision agriculture. The first example studies yield responses to soil electric conductivity using mathematical and logic query functions. The second example demonstrates two methods for delineating management zones. The first method uses the buffer function of FIS to form morphological opening and closing filters. The second method is based on spectral analysis of the maps. Low-pass filters in the frequency domain and query functions are used to delineate the management zones. The management zones derived using the two methods are similar.