The steps of the irrigation method include: flowing a stream of water having input and output and intermediate location interposing a feeding device into the stream of water at the intermediate location, the feeding device having input and output ends inserting a quantity of nutrient fertilizer into the feeding device converting the nutrient fertilizer from the viscous state to the less viscous state through the flow of water through the feeding device and intermixing the viscous nutrient fertilizer with the water entering the feeding device whereby the water leaving the device to plants and soil will include a fertilizer.
