Copper is a micronutrient element in plant nutrition, which is absolutely necessary. In addition to this, use of copper is indispensable; because it has important duties in preventing and slowing many fungous and bacterial diseases; preserving the green colour of plants and in many reactions within the plant structures. In addition to the fact that FAS-Cu has these characteristics; thanks to the excellent unity of copper and nutritional elements; occurrence of bacterial diseases, primarily fungous diseases, is successfully prevented; and the occurred disease element, no matter it is a fungous root disease or a bacterial disease, is successfully suppressed after applying from dripping, and the blockage in transmission bundles is swiftly cleared. Accordingly, a fast recovery process is observed as it allows the nutrition of the plant, when FAS-Cu is applied by dripping , it ensures that the paleness in plants caused by copper, fungous and bacterial diseases is eliminated because its content successfully clears transmission bundles, thus allows an increase of resistance in the plant against diseases. Through the use of FAS-Cu both from the dripping and the leaf; in addition to stopping the diseases and clearing transmission bundles; its content encourages both the formation of roots and increases blooming. In its use in seedbeds, depending on its sphere of influence and increase in its strength; it can prevent darkening and diseases that may occur in the throat in head cuttings during grafted seedling works. In both grafted and plain seedlings, any kind of fungous and bacterial disease risk is successfully prevented. The desired bright green and lively appearance is ensured in seedlings.