Based on collecting meteorological data and field test result

accurate irrigation and automatic control fertilization using the technology of artificial intelligence are compiled by language C

which according to water equilibrium principle

object yield of crop and information of fertility character and so on. The chip micro-comupter is the center of system controller. The high precision detector of soil moisture monitors

devices of soil moisture

irrigators and fertilizing tanks connect with the controller. So the intact control system is built. It can do many things

such as

gathering data

necessary rate of irrigation and fertilizer application to various crops in the period of growth

flow control of spray irrigation

accomplish irrigation and fertilization automatically by way of manmachine conversation and menu choice. According to different crop

different regions

climate and crop of different periods

the system can judge whether the amount of water stored of farmland and soil drops to the lower limit index that the crop and confirm quantity of irrigation and fertilization. In the end

irrigating and fertilizing can be finished automatically. The system can based on the width of field auto-adjust sprinkler pattern range and divide several microplot by the plot-area;it can adjust praying density and discharge of fertilizer based on compatibility of the fertilizer and allocating fertilizer which the system running. So automatic accurate irrigation and fertilization is realized. The system can offer seven corp decision-making actualize project of the accurate irrigation and fertilization such as the wheat

the corn

the cotton

et al. It has the favorable expansibility.