Farmers Need Real Information, IChina, vol.13, p.19, 2006. ,
Design and Realization of GIS- Based County Testing Soil for Wheat Formulated Fertilization System, Jour. Hen. Agri. Uni, vol.5, pp.566-569, 2008. ,
Design Of Decision-making System about Wheat Survey and Directions for Soil Based on GIS in County, 3th Computer and Computing Technologies in Agriculture, pp.661-670, 2009. ,
An Information System of Soil Nutrition Management and Crop Fertilizer Recommendation Based on GIS. Soils, pp.77-81, 2002. ,
Research of Farmland Resource Management and Application Model Based on Web GIS, 3th Computer and Computing Technologies in Agriculture, pp.8-14, 2007. ,
Henan TuRang Dili, He Nan, 1995. ,
Design and Implementation of Crop Growth Simulation System Based on Techno-Componentware Model, Jour. Hen. Agri. Uni, vol.3, pp.317-320, 2005. ,
Research of Crop Production Potential System Based on OMT and Software Component Technique. The PLA Information Engineering University, 2009. ,
Study on the Correlation between ASI and Routine Method to Determine Soil, and the Conventional Chemical Methods ,
Study on the Correlation between ASI and Routine Method to Determine Soil Available P and K and Ammonium Nitrogen, Soil. Fert, vol.3, pp.73-76, 2007. ,
A Systematic Study on Nutrient Status and Its Application in Balanced Fertilization, Jour. Shan. Agri. Scie, vol.4, pp.31-36, 2001. ,
Application of Dissimilar Subtraction Method of Soil Fertility in Recommend Fertilizer Practice for Maize Planting in Yellow Clay Soil, Gui. Agri. Scie, vol.6, pp.34-36, 2003. ,
Spatial Continuous Variation of Environment and Precision Agriculture, pp.18-19, 2005. ,