Grease coating slow-release rice fertilizer capable of improving yield and preparation method of grease coating slow-release rice fertilizer

A film-coated slow-release and yield-increasing technology, applied in the preparation of organic fertilizers, layered/coated fertilizers, fertilizers made from biological wastes, etc., to achieve the effects of comprehensive nutrition and increased yields

Inactive Publication Date: 2016-11-23
ANHUI SHENGNONG AGRI GRP
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Waste oil is easy to obtain, degradable in soil, non-polluting, and

Method used

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Embodiment Construction

[0015] A kind of oil-coated slow-release rice fertilizer that can improve yield is made of the following raw materials in parts by weight (kg):

[0016] Waste oil 20, elemental iodine 0.05, talc 10, fish scale 100, urea 80, wheat seedling 10, pig liver 9, furfural slag 12, bean cake 9, bauxite 4, calcium hydrogen phosphate 1, sucrose 2, 0.4mol / L hydroxide Sodium solution 800, glutaraldehyde 5, strong ammonia water amount, microbial powder 0.4, kaolin 18.

[0017] The preparation method of the described oil-coated slow-release rice fertilizer that can increase crop yield and can increase yield comprises the following steps:

[0018] (1) Add elemental iodine to the waste oil, heat it to 180°C under the protection of nitrogen, and react at a constant temperature for 2.5 hours, continue to pass through nitrogen for protection and let it stand and cool to 22°C to obtain conjugated modified oil;

[0019] (2) Grinding talc into powder to make the particle size reach 0.01mm to obtain...

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Abstract

The invention discloses a grease coating slow-release rice fertilizer capable of improving yield. The grease coating slow-release rice fertilizer is prepared from the following raw materials in parts by weight, 20-22 parts of waste grease, 0.05-0.06 part of iodine, 10-11 parts of talcum, 100-110 parts of fish scale, 80-85 parts of urea, 10-12 parts of wheat seedlings, 9-11 parts of pork liver, 12-13 parts of furfural residue, 9-10 parts of bean cake, 4-5 parts of bauxite, 1-1.2 parts of calcium hydrogen phosphate, 2-3 parts of sucrose, 800-820 parts of 0.4mol/L sodium hydroxide solution, 5-6 parts of glutaraldehyde, right amount of stronger ammonia water, 0.4-0.5 part of microbial flora powder and 18-20 parts of kaolin. The waste grease is modified and can be solidified by only needing normal temperature when the grease is coated, the fish scale is soaked and degummed by sodium hydroxide to generate hydroxyapatite with a porous structure, the hydroxyapatite can serve as a carrier to adsorb urea into the porous channels, and the fertilizer can improve yield.

Description

technical field [0001] The invention relates to the technical field of fertilizer processing, in particular to an oil-coated slow-release rice fertilizer capable of increasing yield and a preparation method thereof. Background technique [0002] Slow-release fertilizer is a type of fertilizer that releases fertilizer nutrients slower than conventional water-soluble fertilizers after the fertilizer is applied to the soil. Two categories. At present, the film material of coated slow-release fertilizer produced industrially is mainly composed of synthetic high polymer resin, and the fluidized bed spraying method is adopted, and the process is complicated. Although slow-release fertilizers have achieved great development worldwide, the commercial price is 3-8 times that of ordinary fertilizers, which greatly limits the popularization and application. Therefore, the development and utilization of new efficient and low-cost slow-release coating materials is a solution. the crux ...

Claims

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Application Information

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IPC IPC(8): C05G3/00C05F17/00
CPCC05B7/00C05F17/00C05G3/00C05G5/30C05C9/02C05F1/005C05F5/006C05F11/00C05F11/08Y02W30/40
Inventor 夏定胜吴金水
Owner ANHUI SHENGNONG AGRI GRP
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