zapi lupini bio is a biological nutrient based on lupins broken into micro-scales, particularly suitable for the nutrition of citrus fruits and acidophilic plants both for use in pots and in the soil. the presence in organic form of one of the most important nutrients for growth of leaves, flowers and fruits, nitrogen favors the harmonious growth of the plant, the formation of new buds and flowers and, in the case of citrus fruits, an abundant and prolonged fruiting with juicy and fragrant fruits.