The invention discloses a refined
crop fertilization
system and a fertilization method. The fertilization
system comprises an omnibearing movable platform as well as a fertilization device, a detection device and a control device, which are all arranged on the omnibearing movable platform, wherein the omnibearing movable platform, the fertilization device and the detection device are controlled by the control device; the fertilization device comprises a
fertilizer box, a liquid outtake
pipe, a conveying pump, a drive device and a mechanical arm, wherein one end of the liquid outtake
pipe is connected with the conveying pump, and the other end of the liquid outtake
pipe is communicated with a jet rod; a plurality of jets are arranged on the jet rod; the conveying pump is communicated with the bottom of the
fertilizer box via a pipeline and used for pumping the
fertilizer into the liquid outtake pipe; the drive device is connected with the conveying pump and used for driving the conveying pump to operate; the jet rod is fixed on the mechanical arm; the detection device comprises a binocular camera and a
spectrograph both fixed on the mechanical arm. The invention further discloses a refined
crop nitrogenous fertilizer fertilization method. According to the invention, the information on characteristics of crops can be comprehensively analyzed via the binocular camera and the
spectrograph, so that refined fertilization is achieved, and meanwhile, the structure is simple, and the jet fertilization is more flexible.