- Crushed Hooves and Horns is a first-rate quality manure of animal origin as it's an excellent source of slow release Nitrogen. - Crushed Hooves and Horns is a first-rate quality manure of animal origin as it's an excellent source of slow release Nitrogen. The Fertilizer is composed by ground horns and hooves from cattle and derives from healthy animals slaughtered in a slaughter house. - Uses: Crushed Hooves and Horns constantly use for every cultivation. It is fact, to warrant slow but rich release nutrition for plants by fertilization round the year whole of crops, mainly spring and autumn. It is possible to obtain excellent results in rich-grown, horticulture, floriculture and grass carpets system. - Physical propertiesThis fertilizer contains 13-14% of organic Nitrogen which derives from a particulars protein , The keratin; it contains 85% of organic matter, a significant quantity of phosphorous (P2O5) 2-4% and microelement. The Size / 1-5 mm +5-15 - Packing / in big bags one tone Or as order of the customer