Development and evaluation of an automated system for fertigation control in soilless tomato production
A closed loop control system is proposed to prepare and manage nutrient solutions. The control strategy synchronizes nutrient solution demand and supply to plants. The plant water stress is minimized under high atmospheric demand conditions. The control system is effective in controlling leachate electrical conductivity. The developed control system enhances economy of fertilizer and water resources.
electrical conductivity crop transpiration water use efficiency nutrient delivery system soilless culture greenhouse