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Oxygen fertilizer and preparation and application methods thereof

A technology of oxygen fertilizer and sodium peroxide, which is applied in the direction of oxygen preparation, application, fertilization equipment, etc., can solve problems such as difficult to master methods, affect plant growth, and cannot be distributed reasonably and evenly, so as to reduce economic costs and losses, and slow release effect Clear, novel material treatment effect

Inactive Publication Date: 2012-07-18
CENTRAL SOUTH UNIVERSITY OF FORESTRY AND TECHNOLOGY
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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]Dichitosan (CTS) film-forming material is nano-processed, and the nano-chitosan suspension prepared by ion gel method is taken by weighing an appropriate amount of CTS powder, dissolved in 0.1M glacial acetic acid (HAC) solution at room temperature, and used Adjust the pH to 5 with NaOH, and filter with a 0.45 μm microporous membrane; dissolve sodium tripolyphosphate (TPP) in ultrapure water, adjust the pH of hydrochloric acid to 8, and filter with a 0.45 μm microporous membrane. According to the experimental design, take a certain amount of CTS solution and add it to a 500ml three-necked flask, put it into a stirrer, place it on an electric mixer with digital display speed, use a computer constant current pump to control the dripping speed of the TPP solution, and drop it into the In the above-mentioned three-necked flask equipped with CTS solution, the rate of dropping is 30d / min, and the temperature change in th...

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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 the fields of novel oxygen fertilizer for agriculture and forestry and its preparation, in particular to a novel oxygen fertilizer with good slow-release performance, high bioavailability, and ability to provide oxygen to flooded plants for a long time, and a preparation and application method thereof. Background technique [0002] Flood disaster is a serious natural disaster. China is one of the countries where flood disasters occur most frequently, and large-scale floods often cause heavy losses to the national economy and people's lives and properties. According to statistics, my country's average annual forestry disaster area reaches 1.95 million mu, and the direct economic loss is about 27.5 billion yuan. According to a report released by the authoritative department of China, the great flood in China in 1998 caused a total of 29 provinces, autonomous regions, and municipalities directly under the central government to su...

Claims

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Application Information

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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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