The products in this line are applied before the planting of crops which provides your plants with nutrients throughout the growing season. Together with presowing fertilization and top dressing, the base fertilizer forms the fertilizer system used in crop rotation. They are applied annually, usually in broadcast fashion, at plowing or cultivation time. The time of application, the depth, and the quantity depend on the type of crops, climatic and weather conditions, properties of the soil, and the equipment used.