| 摘要 |
<p>1. The invention relates to a compound fertilizer designed as a slow-release fertilizer, which can be used in agriculture, gardening, and for ornamental plants. The compound fertilizer is characterized in that it - is an alkali-fused phosphate based on organic raw materials, composed of - a calcium phosphate carrier of organic origin, - alkaline earth metals such as potassium and/or magnesium, and - an excess calcium oxide bonded to a silicon oxide, and is in granulated form. 2. The invention relates to a compound fertilizer according to claim 1, characterized in that the calcium phosphate carrier is an animal bone material in the form of fresh or collected bone or a degreased bone meal or a degreased and degummed bone meal. 3. The invention relates to a compound fertilizer according to claims 1 and 2, characterized in that for the nutrient components potassium and magnesium, an auxiliary salt KMgCl3 that causes a reaction temperature decrease for calcining the material mixture is used.</p> |
