Blend material-enveloped slow release fertilizer special for spinaches and preparation method of slow release fertilizer

A technology of material package and slow-release fertilizer, applied in application, nitrogen fertilizer, phosphate fertilizer, etc., can solve the problems of difficult treatment, secondary pollution, large quantity, etc., achieve the effects of reducing toxicity and solubility, increasing heavy metal content, and improving the planting environment

Inactive Publication Date: 2017-08-15
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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  • Blend material-enveloped slow release fertilizer special for spinaches and preparation method of slow release fertilizer
  • Blend material-enveloped slow release fertilizer special for spinaches and preparation method of slow release fertilizer

Examples

Experimental program
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Effect test

Embodiment 1

[0022] Formula: 17 parts of ammonium metaphosphate, 10 parts of ammonium sulfate, 45 parts of urea, 4 parts of superphosphate, 21 parts of potassium dihydrogen phosphate, 6 parts of admixture, 13 parts of reaction aid, 20 parts of modified montmorillonite, poly Lactic acid 55 parts, polyvinyl alcohol 50 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...

Embodiment 2

[0029] Formula: 23 parts of ammonium metaphosphate, 16 parts of ammonium sulfate, 65 parts of urea, 10 parts of superphosphate, 27 parts of potassium dihydrogen phosphate, 12 parts of admixture, 19 parts of reaction aid, 26 parts of modified montmorillonite, poly 61 parts of lactic acid, 56 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 at 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, ultrasonically d...

Embodiment 3

[0036] Formula: 19 parts of ammonium metaphosphate, 12 parts of ammonium sulfate, 50 parts of urea, 6 parts of superphosphate, 23 parts of potassium dihydrogen phosphate, 8 parts of admixture, 15 parts of reaction aid, 22 parts of modified montmorillonite, poly 57 parts of lactic acid, 52 parts of polyvinyl alcohol.

[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 dis...

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Abstract

The invention discloses a blend material-enveloped slow release fertilizer special for spinaches and a preparation method of the slow release fertilizer. The slow release fertilizer is prepared from the following raw materials in parts by weight: 17-23 parts of ammonium metaphosphate, 10-16 parts of ammonium sulfate, 45-65 parts of urea, 4-10 parts of calcium superphosphate, 21-27 parts of potassium dihydrogen phosphate, 6-12 parts of an additive, 13-19 parts of a reaction aid, 20-26 parts modified montmorillonite, 55-61 parts of polylactic acid and 50-56 parts of polyvinyl alcohol. The blend material-enveloped slow release fertilizer special for spinaches contains multiple nutrients and can meet the requirements of the spinaches to multiple nutrients; and the raw materials including thiosulfuric acid, a plant growth regulator, a herbicide and the like are added into the raw materials of the slow release fertilizer, and the slow release fertilizer is used in a cultivation process of the spinaches, so that the problems of heavy metal pollution of soil and residues of toxic and harmful substances can be effectively solved, and the slow release fertilizer has the advantages of improving the planting environment, inhibiting the growth of weeds and improving the growth vigor of the spinaches.

Description

technical field [0001] The invention relates to the technical field of fertilizer preparation, in particular to a special slow-release fertilizer for spinach coated with a blend material and a preparation method thereof. Background technique [0002] Spinach is also known as Persian vegetable, red root vegetable, parrot vegetable and other annual herbs. The plant can be up to 1 meter high, the roots are conical, reddish, less white, the leaves are halberd-shaped to ovate, bright green, entire or have a few tooth-like lobes, it is rich in carotenoids, vitamin C, vitamin K , minerals (calcium, iron, etc.), coenzyme Q10 and other nutrients, spinach contains a lot of plant crude fiber, which can promote intestinal peristalsis, facilitate defecation, and can promote pancreatic secretion and help digestion. It has a therapeutic effect on hemorrhoids, chronic pancreatitis, constipation, anal fissure and other diseases. The carotene contained in spinach is transformed into vitamin ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/04C05G3/00C05G3/80
CPCC05B1/02C05G3/00C05G3/80C05G5/37C05B7/00C05B17/00C05C3/00C05C9/00C05D9/00
Inventor 陈肖虎鲁圣军唐道文赵平原王丽远黎志英刘利金会心黄碧芳
Owner GUIZHOU UNIV
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