Oxygen fertilizer and preparation and application methods thereof

An application method and technology of oxygen fertilizer, applied in the direction of oxygen preparation, application, fertilization device, etc., can solve problems such as difficult to master methods, unreasonable and uniform distribution, and affecting plant growth, so as to reduce economic costs and losses, novel material processing, Sustained-release effect with noticeable effect

Inactive Publication Date: 2014-01-08
CENTRAL SOUTH UNIVERSITY OF FORESTRY AND TECHNOLOGY
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing oxygen fertilizer is mainly the direct application of calcium peroxide, which is mainly used in small-scale agricultural planting (such as seed growth and germination), aquaculture, food preservation, etc. , so that the pH value of the aqueous solution reaches 12-13 or even higher, direct application will seriously affect the soil pH, promote soil gelatinous compaction and salinization, and corrode the roots of plants, thus affecting the growth of plants
In addition, the direct application of calcium peroxide cannot play the role of slow control and long-term release of oxygen, the slow release effect is not very good, and the fertilizer retention performance is not ideal. Suitable for large-scale promotion

Method used

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  • Oxygen fertilizer and preparation and application methods thereof
  • Oxygen fertilizer and preparation and application methods thereof
  • Oxygen fertilizer and preparation and application methods thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0029] -Place the calcium peroxide in a heated mixer.

[0030] Two-chitosan (CTS) film-forming material is nano-processed, the nano-chitosan suspension is prepared by ion gel method, an appropriate amount of CTS powder is weighed, and it is dissolved in 0.1M glacial acetic acid (HAC) solution at room temperature. Adjust the pH to 5 with NaOH and filter with a 0.45μm microporous membrane; dissolve sodium tripolyphosphate (TPP) in ultrapure water, adjust the pH of hydrochloric acid to 8, and filter with a 0.45μm microporous membrane. According to the experimental design, measure a certain amount of CTS solution into a 500ml three-necked flask, put it into a stirrer, place it on an electric stirrer with digital display speed, use a computer constant flow pump to control the dripping rate of the TPP solution, and drop it into In the three-necked flask containing the CTS solution, the dripping speed is 30 d / min, and the temperature change of the whole reaction process is controlled by...

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Abstract

The invention discloses a novel oxygen fertilizer and preparation and application methods of the oxygen fertilizer. Mixtures of one or more of calcium peroxide, sodium peroxide and magnesium peroxide act as a core; nano chitosan doped with sodium alginate as the binding agent serves as a wrapping membrane; and the outer layer of the wrapping membrane is further wrapped by paraffin as a conditioner, so that a slow-release oxygen fertilizer is prepared. The oxygen fertilizer contains 70-75% of the core by weight, 20-25% of the wrapping membrane by weight, and 3-10% of the conditioner by weight and the particle diameter of the oxygen fertilizer particles is 3-10mm. The novel oxygen fertilizer prepared by the preparation method disclosed by the invention can supply oxygen to waterlogged plants for a long time and is convenient and simple to apply, simple in production process and environment-friendly, and saves time and labor and can be used widely.

Description

Technical field [0001] The invention relates to a new type of oxygen fertilizer for agriculture and forestry and its preparation field, in particular to a new type of oxygen fertilizer which has good slow-release properties, high bioavailability and can provide oxygen for a long time to flooded plants and the like, and a preparation and application method thereof. Background technique [0002] Flood disaster is a serious natural disaster. China is one of the countries with the most frequent floods. Large-scale floods often cause heavy losses to the national economy and people's lives and property. According to statistics, my country’s average annual forestry damage area amounts to 1.95 million mu and direct economic losses are about 27.5 billion yuan. A report published by a Chinese authority pointed out that the 1998 flood in China caused 29 provinces, autonomous regions, and municipalities directly under the Central Government to suffer varying degrees of losses. According to...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C05G3/00C01B13/02
Inventor 何钢王薇薇王琼詹鹏乔中全
Owner CENTRAL SOUTH UNIVERSITY OF FORESTRY AND TECHNOLOGY
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