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Modified montmorillonite slow release fertilizer specially used for carrots and preparation method thereof

A technology of montmorillonite and carrot, which is applied in the field of modified montmorillonite carrot special slow-release fertilizer and its preparation, which can solve the problems of secondary pollution, difficult to handle, large quantities, etc., to increase the content of heavy metals, reduce toxicity and solubility , Improve the effect of planting environment

Inactive Publication Date: 2017-08-18
GUIZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantages of chemical method, biological method, phytoremediation method and incineration method are: removing heavy metals from soil not only requires a lot of financial and material resources, but also it is obviously unrealistic to adopt this method in the face of soil, and those who absorb and enrich heavy metals Plants are also difficult to further process, and may cause secondary pollution problems

Method used

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  • Modified montmorillonite slow release fertilizer specially used for carrots and preparation method thereof
  • Modified montmorillonite slow release fertilizer specially used for carrots and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0022] Formula: 16 parts of potassium nitrate, 14 parts of ammonium sulfate, 44 parts of urea, 8 parts of superphosphate, 20 parts of potassium dihydrogen phosphate, 10 parts of admixture, 12 parts of reaction aid, 24 parts of modified montmorillonite, polylactic acid 54 parts, polyvinyl alcohol 54 parts.

[0023] The preparation method of modified montmorillonite:

[0024] (1) Pulverization: the montmorillonite is ball-milled into a fine powder with a fineness≤0.04mm with a ball mill to obtain montmorillonite powder;

[0025] (2) Activation: Put the montmorillonite powder into the ultrasonic equipment, process it at an ultrasonic power of 600w for 20min, then send it into the calcination tower for 90min at a high temperature of 300°C, add the montmorillonite powder into absolute ethanol after cooling, and ultrasonically Centrifuge after dispersing for 10 minutes, repeat ultrasonic dispersion and centrifugation twice, then add distilled water, ultrasonically disperse for 10 m...

Embodiment 2

[0029] Formula: 22 parts of potassium nitrate, 20 parts of ammonium sulfate, 64 parts of urea, 14 parts of superphosphate, 26 parts of potassium dihydrogen phosphate, 16 parts of admixture, 18 parts of reaction aid, 30 parts of modified montmorillonite, polylactic acid 60 parts, 60 parts of polyvinyl alcohol.

[0030] The preparation method of modified montmorillonite:

[0031] (1) Pulverization: the montmorillonite is ball-milled into a fine powder with a fineness≤0.04mm with a ball mill to obtain montmorillonite powder;

[0032](2) Activation: Put the montmorillonite powder into the ultrasonic equipment, process it for 40min under the ultrasonic power of 1000w, then send it into the calcination tower and calcine it at a high temperature of 600°C for 120min, after cooling, add the montmorillonite powder into absolute ethanol, and ultrasonically Centrifuge after dispersing for 18 minutes, repeat ultrasonic dispersion and centrifugation for 3 times, then add distilled water, u...

Embodiment 3

[0036] Formula: 18 parts of potassium nitrate, 16 parts of ammonium sulfate, 49 parts of urea, 10 parts of superphosphate, 22 parts of potassium dihydrogen phosphate, 12 parts of admixture, 14 parts of reaction aid, 26 parts of modified montmorillonite, polylactic acid 56 parts, polyvinyl alcohol 56 parts.

[0037] The preparation method of modified montmorillonite:

[0038] (1) Pulverization: the montmorillonite is ball-milled into a fine powder with a fineness≤0.04mm with a ball mill to obtain montmorillonite powder;

[0039] (2) Activation: Put the montmorillonite powder into the ultrasonic equipment, process it for 20min at an ultrasonic power of 600w, then send it into the calciner tower and calcinate it at a high temperature of 300-℃ for 90min, add the montmorillonite powder into absolute ethanol after cooling, After ultrasonic dispersion for 10 minutes, centrifuge, repeat ultrasonic dispersion and centrifugation twice, then add distilled water, ultrasonic dispersion fo...

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Abstract

The invention discloses modified montmorillonite slow release fertilizer specially used for carrots and a preparation method thereof. The modified montmorillonite slow release fertilizer is prepared from the following raw materials in parts by weight: 16-22 parts of potassium nitrate, 14-20 parts of ammonium sulfate, 44-64 parts of urea, 8-14 parts of calcium superphosphate, 20-26 parts of monopotassium phosphate, 10-16 parts of additives, 12-18 parts of reaction auxiliaries, 24-30 parts of modified montmorillonite, 54-60 parts of polylactic acid and 54-60 parts of polyvinyl alcohol. The modified montmorillonite slow release fertilizer specially used for the carrots contains multiple nutritional ingredients and can meet the need of the carrots on multiple nutrients; meanwhile, the raw materials such as thiosulfate, a plant growth regulator and a herbicide are added to the raw materials of the slow release fertilizer, so that the problems of soil heavy metal pollution and toxic and harmful substance residues can be effectively solved when the slow release fertilizer is applied in a cultivation process of the carrots, and the advantages of improving a planting environment, inhibiting weed growth and improving growth vigor of the carrots also can be realized.

Description

technical field [0001] The invention relates to the technical field of fertilizer preparation, in particular to a special slow-release fertilizer for modified montmorillonite carrots and a preparation method thereof. Background technique [0002] Carrot, also known as carrot or carrot, is a variety of wild carrot. The difference between this variety and the original variety is that the root is fleshy, long conical, fat, red or yellow in color. Carrot is a kind of home-cooked vegetable that is crisp, delicious and nutritious. , known as "little ginseng". Carrots are rich in nutrients such as sugar, fat, volatile oil, carotene, vitamin A, vitamin B1, vitamin B2, anthocyanins, calcium, iron, etc. Carrots contain a lot of carotene, and the molecular structure of this carotene is equivalent to 2 molecules After entering the body, 50% of vitamin A becomes vitamin A in the liver and small intestine through the action of enzymes, which has the effect of nourishing the liver and imp...

Claims

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Application Information

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IPC IPC(8): C05G3/00C05G3/04C05G3/80
CPCC05B1/02C05G3/00C05G3/80C05G5/37C05B7/00C05C3/00C05C5/02C05C9/00
Inventor 陈肖虎刘利黄碧芳金会心陈庆唐道文赵平原
Owner GUIZHOU UNIV