Conklin’s fertilizers start with the highest quality raw materials to produce a superior finished product. Unlike most fertilizers in the industry, Feast is an absolutely clear liquid, true solution with no impurities. It has a low salt index providing 100-percent orthophosphate and potash with potassium hydroxide. Only low-biuret (the most common impurity) urea sources are used in these specifically-formulated fertilizers. Feast can be mixed with most pesticides.