A Control System for the Mechanism of Feitilizer Proportioning and Mixing Based on the Nitrogen,Phosphate and Potassium Fertilizer
The precision agriculture is the direction of the future modern agriculture. The efficient use of fertilizers is the key technology in the field of the precision agriculture. This technol-ogy needs the information of the crop need and the soil fertility to carry out the variable fertilization. Thus it needs to develop a mechanism of fertilizer proportioning and mixing to proportion the three kinds of fertilizer: nitrogen, phosphate, potassium. This paper discussed the control system of the mechanism. The main task is to realise the proportioning function through adjusting the speed of the discharging shafts according to the soil fertility, the speed of the tractor and other information. The control sys-tem is consisted of two important parts: the human-machine in- terface and the step motor controller. Aontrol system isdeveloped to proportion the nitrogen, phosphate and potassium fertilizer based on the SCM and Serial communication technology. This system is low-cost and easy to operate.
Precision agriculture Fertilizer proportion-ing Step motor Fertilizer apparatus Hall sensor SCM
Liming Chen Liming Xu Yanlong Hou
College of Engineering China Agricultural University Beijing. China
国际会议
山东淄博
英文
24-28
2011-05-27（万方平台首次上网日期，不代表论文的发表时间）