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Sustained release water hyacinth growth regulating agent and preparation method

A growth regulator, water hyacinth technology, applied in the direction of plant growth regulators, plant growth regulators, botany equipment and methods, to achieve the effects of promoting or inhibiting root growth, enhancing adsorption, and increasing the content of active substances

Inactive Publication Date: 2015-11-18
YUNNAN NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing methods of preventing and controlling water hyacinth cannot achieve the effect of not only controlling the damage of water hyacinth, but also retaining the effect of water body management and resource advantages of water hyacinth

Method used

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  • Sustained release water hyacinth growth regulating agent and preparation method
  • Sustained release water hyacinth growth regulating agent and preparation method
  • Sustained release water hyacinth growth regulating agent and preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] In this embodiment, the leaves of the mature plants of the plane grass with a plant height of 110-130 centimeters produced in Chenggong District, Kunming City, Yunnan Province are used as raw materials. Prepare an aqueous solution with an ethanol volume concentration of 40%, and adjust its pH value to 5 with hydrochloric acid. Weigh a part of aircraft grass blade particles and irradiate them under 1800W microwave conditions for 15 minutes to obtain activated biochar carrier materials.

[0032] Weigh the naturally dried aircraft grass particles, add 8 times the weight of an aqueous solution with a pH value of 5 adjusted with hydrochloric acid, control the temperature at 50°C, and use 28kHz, 300W ultrasonic treatment for 30 minutes, and then at the same temperature, 30r / min Extract under stirring conditions for 4 hours, separate the plane grass residue and the water extract, concentrate the water extract at 50°C and 0.07MPa vacuum to obtain a paste a, then mix the plane g...

Embodiment 2

[0036] In this embodiment, leaves of 30-45 centimeters-high planegrass seedlings produced in Chenggong District, Yunnan Province are used as raw materials, and after being removed and dried naturally, they are crushed into granules with a size of about 1 centimeter for future use. Prepare an aqueous solution with an ethanol volume concentration of 60%, and adjust its pH value to 9 with sodium carbonate.

[0037] Weigh the naturally dried aircraft grass blade particles, add 8 times the weight of an aqueous solution with a pH value of 9 adjusted with sodium carbonate, control the temperature at 30°C, and use 28kHz, 300W ultrasonic treatment for 30 minutes, and then at the same temperature, 30r / Extract for 4 hours under the condition of stirring for 4 hours, separate the plane grass residue and the water extract, concentrate the water extract at 50°C and 0.07MPa vacuum to obtain a paste a, and then use 8 times the weight of the plane grass residue with the above-mentioned An aqu...

Embodiment 3

[0041] In this embodiment, the leaves of the mature plant of Planteria syringae with a plant height of 110 to 130 centimeters produced in Baoshan City, Yunnan Province are used as raw materials. Prepare an aqueous solution with an ethanol volume concentration of 50%, and adjust its pH value to 6 with hydrochloric acid.

[0042] Weigh the aircraft grass blade particles, add 8 times the weight of an aqueous solution with a pH value of 6 adjusted with hydrochloric acid, control the temperature at 40°C, use 28kHz, 300W ultrasonic treatment for 30 minutes, and then stir at the same temperature and 30r / min. Extract for 4 hours, separate the plane grass residue and the water extract, concentrate the water extract at 50°C and 0.07MPa vacuum to obtain a paste a, then wash the plane grass residue with 8 times the weight of the above-mentioned ethanol-containing pH The aqueous solution with a value of 6 was extracted for 4 hours at normal temperature (20° C.) and 30 r / min stirring condit...

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Abstract

The invention discloses a sustained release water hyacinth growth regulating agent and a preparation method. The substance uses eupatorium odoratum extract as an active ingredient and macroporous adsorption materials such as self-made biochar, a macroporous silica gel or activated carbon sold in the market as a carrier; each gram of the regulating agent contains 210-230 mg of polyphenol and 420-450 mg of flavone. A slow release cycle of the regulating agent is at least 20 days, and the regulating agent can be put into a permeable non-woven bag and is directly thrown into the water for use. According to the growth regulating agent, the growth of water hyacinth roots is promoted or inhibited, thereby promoting or inhibiting growth and reproduction of the water hyacinth in a sustainable way without killing the water hyacinth, and maintaining functions such as a floating state, growth quantity, and a water body treatment and the like. The sustained release growth regulating agent which uses low-toxicity eupatorium odoratum as the raw material has the characteristics of being safe, easily degradable and environmental-friendly; the agent can provide a novel choice for prevention and control of water hyacinth.

Description

technical field [0001] The invention belongs to the field of plant growth regulators, in particular to a slow-release water hyacinth growth regulator and a preparation method. Background technique [0002] In the 1950s, a large number of water hyacinths were introduced and planted in my country as feed. However, due to the extremely fast reproduction of water hyacinths and poor human management, water hyacinths invaded a large number of lakes, causing serious harm, such as destroying waterways and affecting water ecosystems. etc., are listed as "Ten Bad Weeds", so how to prevent the harm of water hyacinth has become one of the hot spots of social concern. [0003] In order to eliminate the invasion and damage of water hyacinth, the current solution is to inhibit the growth of water hyacinth or eliminate water hyacinth, mainly including physical, chemical and biological methods: (1) the physical method of salvage and mechanical crushing, which cannot be broken The young leaf ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N65/12A01P21/00
CPCY02A40/22Y02P60/21
Inventor 陈继平龚英常杰鲜
Owner YUNNAN NORMAL UNIV
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