Special double-film double-control slow-release fertilizer for corn and preparation method thereof

• Main Authors: AI ZHAOHENG, ZHANG HAIYING, LIU SHUJING
• Format: Patent
• Language: English
• Published: 11.11.2015
• 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

The invention discloses a special double-film double-control slow-release fertilizer for corn and a preparation method thereof, belonging to the technical field of fertilizers. The special double-film double-control slow-release fertilizer for corn comprises a base fertilizer, an additional fertilizer and an ear fertilizer. The base fertilizer is prepared from the following raw materials in parts by weight on dry basis: livestock/poultry manure, wheat straw, Enteromorpha, kaolin, manioc waste, edible fungus residue, inorganic fertilizer and sterilizing component. The additional fertilizer is prepared from urea, diammonium phosphate, ammonium chloride, potassium chloride, potassium sulfate, gypsum and urea formaldehyde. The ear fertilizer is prepared from rare earth, urea, diammonium phosphate, potassium sulfate and pesticidal component. The special double-film double-control slow-release fertilizer for corn can greatly increase the corn yield and lower the occurrence of diseases and pests.