Agriform 20-10-5 long lasting planting fertilizer tablet with minors. An excellent way to ensure tree crops have a good start. Easy way to feed newly planted trees, shrubs and container plants. Contains the necessary nutrients to feed your plants for up to 2 years. These tablets break down slowly through the action of soil bacteria which converts the tablet nitrogen to forms that can be absorbed by plant roots. Tablets provide consistent nutrition to plants. Tablets contain micronutrients derived from sulfates which are generally more plant available than those derived from oxides. Contains 500 tablets of 21-gram each.