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Lipid coating slow release rice fertilizer capable of regulating soil acidity-alkalinity and preparation method thereof

A coated slow-release, acid-alkaline technology, applied in alkaline orthophosphate fertilizers, ammonium orthophosphate fertilizers, layered/coated fertilizers, etc., to improve soil aggregate structure, increase yield and quality, and enhance disease resistance Effect

Inactive Publication Date: 2016-11-16
MAANSHAN SHENGNONG GRAIN IND PRODUCTIVITY PROMOTION CENT CO LTD
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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 there are few reports on its application in the agricultural field

Method used

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Embodiment Construction

[0015] An oil-coated slow-release rice fertilizer that can adjust soil acidity and alkalinity 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, bean dregs 20, kelp powder 17, medical stone 5, ammonium dihydrogen phosphate 0.3, zeolite powder 4, tea saponin 1, humus 2, sodium carbonate 1 , ammonium bicarbonate 1.2, potassium sulfate 0.9, 0.4mol / L sodium hydroxide solution 800, glutaraldehyde 5, strong ammonia water amount, microbial powder 0.4, bentonite 18.

[0017] The preparation method of the described oil-coated slow-release rice fertilizer that can adjust soil acidity and alkalinity 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;...

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PUM

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Abstract

The invention discloses a lipid coating slow release rice fertilizer capable of regulating soil acidity-alkalinity, which is prepared from the following raw materials in parts by weight: 20 to 22 parts of waste oil, 0.05 to 0.06 part of iodine, 10 to 11 parts of steatite, 100 to 110 parts of fish scales, 80 to 85 parts of urea, 20 to 22 parts of bean dregs, 17 to 18 parts of algae powder, 5 to 6 parts of medical stone, 0.3 to 0.4 part of monoammonium phosphate, 4 to 5 parts of zeolite powder, 1 to 1.1 part of tea saponin, 2 to 3 parts of humus, 1 to 1.1 parts of sodium carbonate, 1.2 to 1.3 parts of ammonium hydrogen carbonate, 0.9 to 1 part of potassium sulphate, 800 to 820 parts of 0.4mol / L sodium hydroxide solution, 5 to 6 parts of glutaraldehyde, a proper amount of stronger ammonia water, 0.4 to 0.5 part of microbe bacterial powder and 18 to 20 parts of bentonite. Waste lipid is modified so that during the film coating, curing can be realized only at normal temperature; hydroxylapatite generated after soaking degumming of fish scales in sodium hydroxide has porous structures, and can be used as a carrier for adsorbing urea into pore passages; in addition, the lipid coating slow release rice fertilizer can regulate the soil acidity-alkalinity.

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 adjusting soil acidity and alkalinity 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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/00C05G3/04C05G3/80
CPCC05B7/00C05G3/00C05G3/80C05G5/12C05G5/30C05C3/00C05C9/00C05D1/02C05D5/00C05D9/00C05F1/002C05F5/002C05F11/00C05F11/02C05F11/08
Inventor 陈世勇査海涅
Owner MAANSHAN SHENGNONG GRAIN IND PRODUCTIVITY PROMOTION CENT CO LTD
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