Research On The Analysis Models Of Precision Farming Yield Mapping And Design Of Its System

Precision farming is one of the frontier fields in agriculture in recent years based on information technology,. Yield mapping analysis plays an important role in precision fanning at gaining variance of each operation unit in the field. In this paper, the author proposes methods applying in this research after summarizing analysis models and software used for yield map analysis, designs frame construction , functional module, database and some surface.At last, the author develops main functional module and constructs database.The results show that general statistics can provide basic information for decider about spatial variation of yield and environmental factors; Correlation analysis is carried out to examine the interdependence between yield and environmental factors which be explaned easily with agronomy; The main composition and the main factors can be used to find the main affecting factors by reducing factor dimension in the situation with low data but more factors; Decision tree as one of fields in data mning is a solution for spatial modes and character by pick-uping knowledge rules from data, which can avoid condition of abundant data but indigent knowledge; When data is more, Map overlapping analysis can exert its advantage and be used to model after overlapping datasheet.The system intergated with analysis modes and GIS technology can get main information of affecting factors in field as well as knowledge rules from data or graph and give satisfying result.