Organic-inorganic fertilizer and preparation method thereof

• Main Author: ZHANG XUNYONG
• Format: Patent
• Language: Chinese; English
• Published: 20.05.2022
• Subjects: CHEMISTRY; FERTILISERS; FERTILISERS CHARACTERISED BY THEIR FORM; MANUFACTURE THEREOF; METALLURGY; MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENTSUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVINGA SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES,SOIL-CONDITIONERS, WETTING AGENTS; ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE

The invention relates to an organic-inorganic fertilizer and a preparation method thereof, the organic-inorganic fertilizer comprises more than or equal to 15% by mass of total nutrient nitrogen, phosphorus pentoxide and potassium oxide, more than or equal to 8% by mass of organic matter and less than 12% by mass of water, the organic-inorganic fertilizer is characterized in that the organic matter is provided by decomposed livestock and poultry manure, and the decomposed livestock and poultry manure contains bentonite; the bentonite accounts for 40-60% of the total mass of the decomposed livestock and poultry manure. The fertilizer dedusting pressure can be relieved, the fertilizer production cost can be reduced, and the qualified rate of products can be improved. 本发明涉及一种有机无机肥及其制备方法，有机无机肥总养分氮、五氧化二磷和氧化钾的质量分数大于等于15%，有机质的质量分数大于等于8%，水分的质量分数小于12%，其特征在于，有机质由腐熟畜禽粪便提供，所述腐熟畜禽粪便中含有膨润土；膨润土占腐熟畜禽粪便总质量的40～60%。本申请可以减轻肥料除尘压力，降低肥料生产成本，提高产品的合格率。