In the provision of fertilizer to note the need for the type and proportion for each plant, so plants do not get too many nutrients. Too few or too many types and quantities of food substances can be harmful to plants. Increased agricultural production can be achieved through appropriate technology approach, among others, by applying a balanced fertilizer technology specific location. Currently, the recommended fertilization technology is hardly practiced by most of Indonesian farmers, causing fertilization becomes unbalanced. The low knowledge of the importance of garden soil fertility data and carrying capacity of the plant nutrients for growth and production is characterized by low levels of productivity compared to crop genetics.
In support of balanced fertilization method can be performed using several types of single nutrients that are mixed in a simple (simple blending), or mixed mechanically (mechanical blending) or by chemically mixing technology ( chemical blending) called compound fertilizer with nutrient composition or certain formula. While site-specific fertilization is approached by reading secondary data map of soil fertility in a region followed by listening to customer information will condition the garden. Information about the condition of crops farmers can also visually provide basic data for calculation of nutrient composition for preparing a fertilizer that will be manufactured at the factory.