By using the reverse osmosis filtration method in agriculture, drainage and waste waters are treated and reused in irrigation, thus preventing water waste and ensuring efficient use of water resources. In addition, water obtained from deep wells experiencing salt problems is filtered with reverse osmosis and purified from salt, lime, and unwanted particles. In this way, while plants are irrigated with cleaner and higher quality water, blockages that may occur in irrigation systems are also prevented. Reverse osmosis technology provides the most suitable water quality used in irrigation by regulating important parameters such as the pH level, hardness, and conductivity of the water. As a result, it allows both the protection of water resources and the obtaining of higher quality products.