Special fertilizer with balanced nutrition for tea-oil tree

• Main Author: WU HAIDE
• Format: Patent
• Language: Chinese; English
• Published: 28.08.2018
• 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 fertilizer with balanced nutrition for a tea-oil tree. The fertilizer is prepared from the following raw materials in parts by weight: 80-100 parts of compound urea,32-52 parts of ammonium chloride, 18-25 parts of calcium-magnesium phosphate fertilizer body, 10-19 parts of potassium chloride, 0.6-1.5 parts of calcium chloride, 1-2 parts of sodium selenite, 0.4-1part of zinc sulfate, 0.2-0.9 part of ferrous sulfate, 1-2 parts of coal ash, 31-67 parts of compound organic matter and 0.003-0.015 part of compound bacteria, wherein the compound urea is prepared through a process which comprises the following steps that polylactic acid, polyvinyl alcohol and zinc naphthenate are stirred, the stirring temperature is 190-195 DEG C, phenolic resin is added, uniform stirring is carried out, the mixture is dropwise added into liquid paraffin, formed liquid drops are collected and dried and are put into a nitrogen-protective tube furnace to be calcined, cooling is carried out, urea, starc