Synchronous nutrient wheat special controlled release fertilizer and preparation method thereof
A technology for controlled release fertilizer and wheat, applied in the application, fertilization device, fertilizer mixture and other directions, can solve the problems of easy loss, fast dissolution, short fertilizer efficiency, etc., to save labor costs, improve economic benefits, and reduce labor intensity.
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Example Embodiment
[0051] Example 1: Special controlled-release fertilizer for wheat, the raw material components are as follows:
[0052] 3.2% double-coated urea 2 parts
[0053] 3.5% double-coated urea 4 parts
[0054] 3.8% double-coated urea 5 parts
[0055] 4.1% double-coated urea 10 parts
[0056] 4.4% double-coated urea 10 parts
[0057] 4.7% double-coated urea 6 parts
[0058] 5.0% double-coated urea 4 parts
[0059] 4.1% double-coated potassium nitrate 22 parts
[0060] 3.5% double-coated diammonium phosphate 15 parts
[0061] 20 parts of potassium chloride compound fertilizer
[0062] 1.5 parts of zinc sulfate.
[0063] (1) Preparation of series of raw materials:
[0064] A. Dissolve 3 kilograms of recycled polyethylene resin in 100 kilograms of n-butyl acetate and pentyl acetate mixed solvent with a ratio of 2:1, add diatomaceous earth, wheat flour and rubber powder 1:1:1 total 0.8 kg to prepare Inner film coating agent.
[0065] B. Mix 0.3 kg of polyurethane, 0.1 kg of toluene diisocyanate and 0.1 kg o...
Example Embodiment
[0070] Example 2: Special controlled-release fertilizer for wheat, the mass parts of raw materials are as follows:
[0071] 3.2% double-coated urea 3 parts
[0072] 3.5% double-coated urea 5 parts
[0073] 3.8% double-coated urea 6 parts
[0074] 4.1% double-coated urea 9 parts
[0075] 4.4% double-coated urea 12 parts
[0076] 4.7% double-coated urea 5 parts
[0077] 5.0% double-coated urea 5 parts
[0078] 4.1% double-coated potassium nitrate 20 parts
[0079] 3.5% double-coated diammonium phosphate 18 parts
[0080] 15 parts of potassium chloride compound fertilizer
[0081] 2 parts of zinc sulfate.
[0082] The raw material preparation method is the same as in Example 1.
Example Embodiment
[0083] Example 3: Special controlled-release fertilizer for wheat, the mass parts of raw materials are as follows:
[0084] 3.2% double-coated urea 1 part
[0085] 3.5% double-coated urea 3 parts
[0086] 3.8% double-coated urea 4 parts
[0087] 4.1% double-coated urea 12 parts
[0088] 4.4% double-coated urea 8 parts
[0089] 4.7% double-coated urea 4 parts
[0090] 5.0% double-coated urea 2 parts
[0091] 4.1% double-coated potassium nitrate 24 parts
[0092] 3.5% double-coated diammonium phosphate 16 parts
[0093] 25 parts of potassium chloride compound fertilizer
[0094] 1 part of zinc sulfate.
[0095] The raw material preparation method is the same as in Example 1.
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