Abstract:

Aiming at the more nitrogen applied in production and short of information technology of quantitative fertilizers, the geographic information system of precise fertilization in rice based on Visual Basic 6.0 and MapObjects 2.2 was developed. The system consisted of E-map, fertilizer decision, fertilizer knowledge, et al. It had many functions such as information browse, map navigation, property query, decision support, learning tutorship, et al. It owned advantage such as usability, reliability and ease of use, which achieved system design goal.