Development of Automatic Nutrient Dosing System for Hydroponics

Fertigation is a method used in agriculture to provide water-soluble nutrients through irrigation. It is crucial to correctly adjust the machine and nozzles to apply the right amount of liquid fertilizer per hectare. This work aims to automatically maintain a specific amount of the major nutrients, such as nitrogen, phosphorus, potassium, and several micronutrients, for their normal growth and development. In the present work, an automatic system is proposed to control the quality of organic and inorganic fertilizers, considering all the measurable essential parameters like pH, electrical conductivity, and temperature with automatic temperature compensation to arrive at an adequate nutritive solution for the cultivated plant.