Research fertility spatial-temporal evolution pattern and crop precision fertility based on spatio-temporal data mining

With in the process of implementation of precision agriculture, massive was accumulated because of using the computer, network, "3S" technology. The spatial data is spatial, timeliness, content, multidimensionality, complexity and uncertainty, etc. With the development of precision agriculture in our province of, agricultural technology researchers and managers have accessed the massive and accuracy data, at the same they have accumulated various aspects of attribute data and spatial data which is closely related to the agricultural production process. The soil nutrient space and time variation characteristics must be researched; And according to the application of the fuzzy rule, the cluster analysis algorithm makes the corresponding productivity evaluation index; The determination of reasonable soil nutrient management unit, set for farmland soil nutrient division management methods to push the fertilizer to provide the necessary with scientific basis, to make the agricultural production continued, highly effective, the coordinated development purposes.