Special urea sulfate compound fertilizer for sugarcane as well as preparation method and application of special urea sulfate compound fertilizer

• Main Authors: LIANG TIAN, ZHOU LIUQIANG, TAN HONGWEI, HUANG JINSHENG
• Format: Patent
• Language: Chinese; English
• Published: 05.08.2022
• Subjects: AGRICULTURE; ANIMAL HUSBANDRY; CHEMISTRY; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPSOR SEAWEED; FERTILISERS; FERTILISERS CHARACTERISED BY THEIR FORM; FERTILISING; FISHING; FORESTRY; HORTICULTURE; HUMAN NECESSITIES; HUNTING; 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; PLANTING; SOWING; TRAPPING; WATERING

The invention relates to the technical field of fertilizer production, and particularly discloses a special urea sulfate compound fertilizer for sugarcane as well as a preparation method and application thereof, and the special urea sulfate compound fertilizer for sugarcane comprises the following raw materials in parts by weight: 20-25 parts of 75% concentrated sulfuric acid, 40-45 parts of urea, 10-15 parts of triple superphosphate, 20-25 parts of potassium chloride, 0.2-0.5 part of dicyandiamide and 0.2-0.5 part of humic acid. Compared with a traditional sugarcane nitrogen-phosphorus-potassium compound fertilizer, the special urea sulfate compound fertilizer for the sugarcane has the advantages that the effectiveness of nitrogen is doubled or above, and field application proves that the nitrogen utilization rate reaches 50-60%. The urea sulfate produced by the method disclosed by the invention is of a macromolecular structure formed by coupling a urea molecule and two sulfuric acid molecules, and can be st