Geo-STATer is a computer program for semivariogram analyst

geostatistical prediction and simulation.In addition to classical statistics

it provides basic geostatistical functions

including semivariogram analysis

cross-semivariogram analysis

fitting the theoretical semivariogram or cross-semivariogram model

ordinary kriging interpolation

cokriging interpolation and inverse distance weighted method interpolation.The paper presented the system design

function and realization of this software.Taking soil data as an example

the running results of Geo-STATer were compared with those using other two geostatistical software

such as GS~ and Geostatistical Analyst for ArcGIS.The results showed that Geo-STATer had acceptable accuracy and considerable efficiency.It can be not only used to study the spatial variability of soil properties

but also integrated with other professional models for developing the precise fertilization management system.