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Water and fertilizer precision irrigation and environmental control system of Greenhouse

Published by the American Society of Agricultural and Biological Engineers, St. Joseph, Michigan www.asabe.org

Citation:  2021 ASABE Annual International Virtual Meeting  2100336.(doi:10.13031/aim.202100336)
Authors:   Kai Wu, Bing Lu, Shuo Zhang, Shaoyun Han, Xiuying Tang
Keywords:   Water and Fertilizer Integration, Greenhouse Environmental Control, Precision Fertilization, Greenhouse Technology.

Abstract. Efficient water-saving irrigation and intelligent fertilization are one of the main directions of modern facility agriculture. In order to solve the problems of unbalanced manual control of water and fertilizer concentration in the existing greenhouse, waste of water resources and inconvenient regulation of environmental parameters, precision irrigation and environmental control devices for greenhouse water and fertilizer are designed. This device mainly includes precise water and fertilizer allocation, recycling equipment, various environmental sensors, etc., and precise water and fertilizer allocation adopts Venturi plus peristaltic pump mixed water and fertilizer. Irrigation and fertilization pressure device, including sprinkler irrigation, drip irrigation and other modes, the device can realize the precise supply of water and fertilizer, water and fertilizer automatic recovery, real-time monitoring and control of greenhouse CO2 concentration, light intensity, soil temperature and humidity, air temperature and humidity and other parameters.

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