Device features: 1) 15-inch Android touch screen, PC terminal, mobile APP control, support off-grid operation and control valves. 2) Support 5 channels (N, P, K, trace elements, acid) automatic fertilizer absorption, support software to set the proportion of fertilizer channels and automatically distribute fertilizer according to the set ratio. 3) Support timed, quantitative fertilization, rotational fertilization, formula fertilization, and the fertilizer distribution curve is displayed instantly. 4) Support multiple irrigation programs, and can be linked with irrigation and fertilization through environmental parameters such as timing, quantitative, meteorological, soil moisture, and soil nutrients. 5) The pre-fertilizer water and post-fertilizer water of each rotation irrigation group can be set. 6) Support two high-precision EC and pH monitoring, mutual verification. 7) Support phase sequence protection, overflow protection, and water shortage protection. 8) If the program runs abnormally (such as the fertilizer suction channel is blocked), the program will be automatically stopped and the alarm information will be pushed. 9) Fertilization report, program management, log management, early warning management. 10) If the program runs abnormally (such as the fertilizer suction channel is blocked), the program will be automatically stopped and the alarm information will be pushed. 11) Support remote upgrade and remote diagnosis of the program. 12) Support the mixing motor of the mother liquor barrel, set the mixing motor to work regularly, and monitor the liquid level of the mother liquor barrel. 13) Obtained CMA and CNAS certification.