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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.

Active Publication Date: 2010-08-04
KINGENTA ECOLOGICAL ENG GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Wheat is one of the main food crops in my country. However, wheat planting benefits are low, and farmers are unwilling to invest too much labor and time. Realizing wheat sowing and fertilization at one time is the development direction of wheat fertilization
At present, the fertilizers used by wheat are mainly quick-acting chemical fertilizers. Due to the fast dissolution, short fertilizer effect and easy loss of this kind of fertilizer, it can neither be applied at one time, nor can it be applied together with sowing.
Controlled-release fertilizers can solve the problem of one-time fertilization of wheat. For example, Chinese patent document CN101182260A (200710114006.1) discloses a "special controlled-release fertilizer for sulfur and resin-coated wheat and its manufacturing method", which utilizes a series of sulfur and resin-coated materials to produce The controlled-release fertilizer is produced by compounding the special controlled-release fertilizer for wheat, but it also has shortcomings, such as sulfur is easily oxidized and brittle in the air, and the membrane shell will rupture during the nutrient release process, resulting in a sudden loss of nutrients in the membrane. Release etc.
Therefore, there will be a large gap between the application of controlled-release fertilizers determined by the controlled-release period stipulated in the production standards of slow-controlled release fertilizers and the growth period of wheat, and the actual production

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] Embodiment 1: special controlled-release fertilizer for wheat, the mass parts of 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] Potassium chloride compound fertilizer 20 parts

[0062] Zinc sulfate 1.5 parts.

[0063] (1) Preparation of series raw materials:

[0064] A, 3 kilograms of reclaimed polyethylene resins are dissolved in 100 kilograms of n-butyl acetate and pentyl acetate ratio is 2: 1 mixed solvent, add diatomite, wheat flour and rubber powder 1: 1: 1 altogether 0.8 kilograms, be mixed with Inner membrane coating agent.

[0065] B. Mix 0.3 kg of polyur...

Embodiment 2

[0070] Embodiment 2: special controlled-release fertilizer for wheat, the mass parts of raw material components 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] Potassium chloride compound fertilizer 15 parts

[0081] Zinc sulfate 2 parts.

[0082] The preparation of raw materials is the same as in Example 1.

Embodiment 3

[0083] Embodiment 3: special controlled-release fertilizer for wheat, the mass parts of raw material components 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 parts of 4.7% double-coated urea

[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] Potassium chloride compound fertilizer 25 parts

[0094] Zinc sulfate 1 part.

[0095] The preparation of raw materials is the same as in Example 1.

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Abstract

The invention relates to a synchronous nutrient wheat special controlled release fertilizer and a preparation method thereof. Double-layer diolame urea, double-layer diolame potassium nitrate and double-layer diolame diammonium phosphate prepared by utilizing recycled waste thermoplastic resin and thermosetting resin are compounded with potassium chloride compound fertilizer and zinc sulfate, and the nutrient release and the wheat absorption of the prepared wheat special controlled release fertilizer in soil are synchronous, so the fertilizer is suitable for mechanical application and has no harm on the seeds.

Description

technical field [0001] The invention relates to a wheat-specific controlled-release fertilizer, in particular to a wheat-specific controlled-release fertilizer which is carried out simultaneously with sowing, is suitable for mechanical fertilization, and synchronizes nutrient release and wheat nutrient absorption and a preparation method thereof, belonging to the technical field of controlled-release fertilizer production . Background technique [0002] Wheat is one of the main food crops in my country. However, wheat planting benefits are low, and farmers are unwilling to invest too much labor and time. It is the development direction of wheat fertilization to realize wheat sowing and fertilization at one time. At present, the fertilizers applied to wheat are mainly quick-acting chemical fertilizers. Due to their fast dissolution, short fertilizer effect, and easy loss, this kind of fertilizer can neither be applied at one time, nor can it be applied together with sowing. ...

Claims

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Application Information

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IPC IPC(8): C05G3/08C05G3/90
Inventor 解玉洪范玲超李广涛徐淑班张强
Owner KINGENTA ECOLOGICAL ENG GRP
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