Open Hydroponics is an irrigation and nutrition management program aimed at increasing yield and fruit quality of horticulture crops. The fundamental principle of Open Hydroponics is that nutrients are applied continuously by drip irrigation that is operated at very high frequency. Design, installation, operation, monitoring and control are all critical components of Open Hydroponics. Professor Rafael Martinez (University Miguel Hernández, Spain) was the first to introduce the concepts of Open Hydroponics into Australia. There are now a number of commercial consultants offering advice and services for Open Hydroponics.