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Abstract.

In these year, working condition monitoring system and variable fertilization mechanism for maize sowing and fertilizing has great development, to this issue, this paper design maize precision seeding fertilization monitoring system based on the embedded technology, which take ARM-MC9S12XS128 as the dual core of the controller. Use CAN bus as the communication medium between the ARM bus and controller. The system can be applied to maize variable fertilization, and can be adjusted to monitor the amount of fertilizer in real time, in addition to that, it can achieve the process of visualization requirements and provide reference for intelligent seeding fertilization system design. The experiment results showed that the system error rate less than 0.8% and running stable at the same rate of fertilization, but with the motor speed changes, the system will be error in the adjustment process.