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Decision Support System of Variable Rate Irrigation Based on Mathematical Model and GIS

  • Jianjun Zhou
  • Gang Liu
  • Su Li
  • Xiu Wang
  • Man Zhang
Part of the The International Federation for Information Processing book series (IFIPAICT, volume 259)

Owing to the difference of soil water in the farm, a system of variable rate irrigation was developed with Visual C++ and MapObjects that can save water as well as can improve economy benefit. Soil water content can be forecasted by using the forecast model of soil water, according to the real soil water content of different sampling sites in this system. Irrigation or not can be decided by comparing the current soil content with the light drought and serious drought index of the crop. The water amount of irrigation can be decided by the analysis of economy benefit according to the model of water consumption-yield, thus the irrigation prescription map can be created. This system can also query the information of fields, manage and analysis the data of soil. The test was performed in national precision agriculture demo farm.

Keywords

variable rate irrigation geographic information system model prescription 

References

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Copyright information

© IFIP International Federation for Information Processing 2008

Authors and Affiliations

  • Jianjun Zhou
    • 1
  • Gang Liu
    • 1
  • Su Li
    • 2
  • Xiu Wang
    • 3
  • Man Zhang
    • 1
  1. 1.China Agricultural UniversityChina
  2. 2.Beijing Technology and Business UniversityChina
  3. 3.National Engineering Research Center for Information Technology in AgricultureChina

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