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High-utilization-rate grease coated slow release rice fertilizer and preparation method thereof

A coating slow-release, utilization rate technology, applied in the direction of layered/coated fertilizer, organic fertilizer, inorganic fertilizer, etc., to achieve the effect of improving utilization rate, reducing the amount of fertilizer application, and promoting the development of root system

Inactive Publication Date: 2016-11-16
ANHUI SHENGNONG AGRI GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Waste oil is easy to obtain, degradable in soil, non-polluting, and there are few reports on its application in the agricultural field

Method used

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Examples

Experimental program
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Effect test

Embodiment Construction

[0015] A high-utilization oil-coated slow-release rice fertilizer is made from the following raw materials in parts by weight (kg):

[0016] Waste oil 20, elemental iodine 0.05, talc 10, fish scale 100, urea 80, millet 19, castor bean 23, milk basic protein 0.2, β-carotene 0.4, salt 2, diammonium phosphate 1, attapulgite 5, Naphthalene acetic acid 0.1, indole acetic acid 0.1, 0.4mol / L sodium hydroxide solution 800, glutaraldehyde 5, concentrated ammonia water appropriate amount, microbial powder 0.4, bentonite 18.

[0017] The preparation method of the high-utilization oil-coated slow-release rice fertilizer 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 ...

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Abstract

The invention discloses a high-utilization-rate grease coated slow release rice fertilizer. The fertilizer is prepared from, by weight, 20-22 parts of waste grease, 0.05-0.06 part of elemental iodine, 10-11 parts of talc, 100-110 parts of scales, 80-85 parts of urea, 19-20 parts of millet, 23-24 parts of castor seeds, 0.2-0.3 part of milk basic protein, 0.4-0.5 part of beta-carotene, 2-3 parts of salt, 1-1.2 parts of diammonium phosphate, 5-6 parts of attapulgite, 0.1-0.2 part of naphthylacetic acid, 0.1-0.2 part of heteroauxin, 800-820 parts of 0.4mol / L sodium hydroxide solution, 5-6 parts of glutaraldehyde, a proper amount of stronger ammonia water, 0.4-0.5 part of microorganism bacterium powder and 18-20 parts of bentonite. According to the fertilizer, the waste grease is modified, the waste grease can be cured at normal temperature when coated, hydroxyapatite generated after the scales are soaked with sodium hydroxide to be degummed has a porous structure and can adsorb urea into hole channels as a carrier, and in addition, the fertilizer is high in utilization rate.

Description

technical field [0001] The invention relates to the technical field of fertilizer processing, in particular to an oil-coated slow-release rice fertilizer with high utilization rate 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 o...

Claims

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Application Information

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IPC IPC(8): C05G3/00
CPCC05B7/00C05G3/00C05G5/30C05C3/00C05C9/00C05D5/00C05D9/00C05F1/005C05F1/007C05F11/00C05F11/08C05F11/10
Inventor 夏定胜马万征谢樾
Owner ANHUI SHENGNONG AGRI GRP
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