NUTRIENT SUPPLYING SYSTEM FOR CONTROLLING NUTRIENT SUPPLY BASED ON GAP-ADJUSTED BAND OF TARGET MEDIUM WEIGHT

摘要

The present invention relates to a nutrient solution supply system for facility horticulture, a storage tank for storing nutrient solution and supplying it to a medium; Medium weight measurement unit for measuring the weight of the medium; A band setting unit for setting a band having an upper limit value and a lower limit value of the target medium weight, and adjusting a bandwidth corresponding to a difference between the upper limit value and the lower limit value of the band according to a predetermined control mode; And providing the control mode to the band setting unit, and controlling the nutrient solution supplied from the mixing tank to the medium so that the measured medium weight from the medium weight measurement unit maintains between the upper limit and the lower limit of the band. It includes a nutrient solution control unit. According to the present invention, a nutrient control technology optimized for crops is provided, and thus maximization of crop yield and quality improvement can be expected.