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Application of nanopowder materials with core-shell structure in promoting crop growth, increasing crop yield and improving crop quality

A core-shell structure and nano-powder technology, applied in the field of green agriculture, can solve problems such as limited improvement in grain yield and quality, unfavorable sustainable development of agricultural planting, soil acidification, etc., to achieve significant effects and improve crop yield and quality , the effect of promoting crop growth

Active Publication Date: 2022-02-22
甘肃省科学院 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Although these traditional technologies can solve some problems of plant growth needs, studies have shown that traditional methods of supplementing trace elements not only have very limited improvement in grain yield and quality, but also have caused soil acidification and compaction, which is not conducive to sustainable agricultural planting. develop

Method used

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  • Application of nanopowder materials with core-shell structure in promoting crop growth, increasing crop yield and improving crop quality
  • Application of nanopowder materials with core-shell structure in promoting crop growth, increasing crop yield and improving crop quality
  • Application of nanopowder materials with core-shell structure in promoting crop growth, increasing crop yield and improving crop quality

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] The preparation method of the elemental nano-iron powder material with core-shell structure of the present invention is:

[0032] The present invention uses iron simple nanomaterials produced by Gansu Academy of Sciences Xijing New Materials Co., Ltd. as raw materials, puts iron simple nanomaterials in a stainless steel container, draws a vacuum to 0.1Pa, and then feeds argon and oxygen mixed gas, and the mass flow rate The ratio is 9:1, up to 10000Pa. According to the thickness of the cladding layer, keep the pressure for 8 hours to passivate the surface of the nano-powder. The temperature was set to 100 °C. After the passivation is completed, the elemental nano-iron powder material with a core-shell structure for agriculture can be obtained, and the surface oxide coating layer is 2.5nm. The elemental nano-iron powder material with a core-shell structure produced by the above method, in addition to having the general characteristics of nano-materials, has also carried...

Embodiment 2

[0037] The preparation method of the elemental nano-copper powder material with core-shell structure of the present invention is:

[0038] The present invention uses copper single substance nanomaterials produced by Gansu Academy of Sciences Xijing New Materials Co., Ltd. as raw materials, puts copper single substance nanomaterials in a stainless steel container, draws a vacuum to 0.12Pa, and then feeds argon and oxygen mixed gas, and the mass flow rate The ratio is 8:2, up to 9000Pa. According to the thickness of the cladding layer, keep the pressure for 10 hours to passivate the surface of the nano-powder. The temperature was set to 180 °C. After the passivation is completed, the elemental nano-copper powder material with a core-shell structure for agriculture can be obtained, and the surface oxide coating layer is 3nm. The elemental nano-copper powder material with a core-shell structure produced by the above method, in addition to having the general characteristics of nan...

Embodiment 3

[0042] The preparation method of the elemental nano-silicon powder material with core-shell structure of the present invention is:

[0043] The present invention uses silicon simple nanomaterials produced by Gansu Academy of Sciences Xijing New Materials Co., Ltd. as a raw material, places silicon simple nanomaterials in a stainless steel container, draws a vacuum to 0.1Pa, and then feeds argon and oxygen mixed gas, and the mass flow rate The ratio is 9:1, up to 10000Pa. According to the thickness of the cladding layer, keep the pressure for 12 hours to passivate the surface of the nano-powder. The temperature was set to 80 °C. After the passivation is completed, the elemental nano-silicon powder material with a core-shell structure for agriculture can be obtained, and the surface oxide coating layer is 2.6nm. The elemental nano-silicon powder material with a core-shell structure produced by the above method, in addition to the general characteristics of nano-materials, has a...

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Abstract

The invention provides a preparation method of a single nano-powder material with a core-shell structure. The iron, copper or silicon simple nano-material is placed in a container, the vacuum is drawn to 0.08-0.15Pa, and then argon and oxygen mixed gas are introduced, and the mass The flow ratio is 80‑90%: 20%‑10%, up to 8000‑12000Pa, keep the pressure for 2‑24 hours, and the container rotates continuously during the pressure keeping process to obtain elemental iron, copper or silicon nanopowder with core-shell structure Material. The invention also provides the elemental nano-powder material with a core-shell structure prepared by the preparation method, and the application of the elemental nano-powder material in promoting crop growth, increasing crop yield and improving crop quality.

Description

technical field [0001] The invention belongs to the technical field of green agriculture, and in particular relates to an elemental nano-powder material with a core-shell structure, a preparation method thereof, and an application thereof in promoting crop growth, increasing crop yield, and improving crop quality. Background technique [0002] Food security has increasingly become a topic of concern around the world. According to statistics, there are still more than 400 million people in the world who suffer from malnutrition due to insufficient food. Modern agricultural technologies such as the promotion of improved varieties and the use of chemical fertilizers have increased grain production to the extreme, and it is difficult to increase grain production with existing technologies. In recent years, with the rapid development of nanotechnology, improving the yield and quality of crops by using nanotechnology has attracted widespread interest. For example, CN102815999B di...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22F1/054B22F1/145B22F1/16A01C1/00A01C1/06A01C21/00A01G7/06A01G13/00C01B33/02C05D9/02B82Y30/00B82Y40/00
CPCA01C1/06A01C1/00A01G7/06A01G13/00A01C21/00B82Y30/00B82Y40/00C01B33/02C05D9/02B22F1/054B22F1/07B22F1/065B22F1/16B22F1/145
Inventor 闫鹏勋祝英吴志国赵毅巩晓芳
Owner 甘肃省科学院
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