The GPS system is extremely important during the implementation of fine agriculture: it can give accurate positioning of various information about farmland, including navigation, flat land, accurate sowing, spraying medicine, fertilizer, data management, and variable control of agricultural machinery vehicle navigation, flat land, accurate sowing, spraying drugs, fertilizer, data management, and crop vitality detection and variable control. The mature and good benefits in precision agriculture include: autonomous driving, fertilization, spraying and sowing. GPS is much higher than the management of soil nutrient distribution, detection of crop yield and farmland management than people's management in terms of efficiency and accuracy; configure monitors and GPS receivers on the joint harvester The comprehensive analysis of Word can find the relevant factors affecting the production of crops, so as to carry out specific management of fertilization in field. Use brown soil and green crops to reflect the difference in the wavelength of light wavelength

　　Can distinguish soil, crops and weeds. Use the differences in reflective light waves to identify crop leaves that lack nutrition or infection with diseases and insect pests. There are two methods for applying herbicides. ① Use weeds to detect sensors, collect field weed information, and control the amount of herbicide spraying through the control system of the variable spraying equipment; Distributed maps are performed by electronic map output prescriptions and implemented by variable spraying machinery.

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