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Compound microbial agent for biological control of nematodes and application of compound microbial agent

A compound microbial agent and nematode technology, applied in biocides, nematicides, chemicals for biological control, etc., can solve problems such as reducing vegetable quality, destroying ecological balance, and threatening the sustainable development of agriculture. Better control effect

Inactive Publication Date: 2021-08-27
中诚国联(河南)生物科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the application of chemical nematicides to control root-knot nematodes has quick results, it will greatly reduce the quality of vegetables due to pesticide residues, pollute the environment, destroy the ecological balance, and seriously threaten the sustainable development of agriculture. Although agricultural operations and physical, chemical, Biological control methods can alleviate the damage caused by root-knot nematodes to a certain extent, but they have not fundamentally solved the problem
At present, the use of biological control to replace chemical control is an effective measure to control root-knot nematodes, but the existing biological control of root-knot nematodes has poor control effects and cannot achieve a good and stable control effect during the entire process of plant growth

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] According to the weight ratio of 40:10:6:5:1:2, polylactic acid, polyglycerol carbonate, starch, cellulose, and flaky talcum powder with an average particle size of 4 μm were weighed; polylactic acid, polyglycerol carbonate, Pour starch, cellulose and talcum powder into the mixing tank, heat to 155°C, and adjust the speed of the mixing tank to 2500r / min, and mechanically shear the materials in the mixing tank for 1 hour; add the mixture in the mixing tank to the twin-screw extruder Extruded by melt extrusion to obtain biodegradable resin;

[0031] Weigh polyetheramine, stearic acid and sucrose according to the weight ratio of 0.2:0.05:1; under nitrogen environment, mix polyetheramine, stearic acid and sucrose and heat to 200°C, keep it warm for 2h, then raise the temperature to 600°C ℃, heat preservation for 3h; after cooling to room temperature, pulverize to obtain porous carbon material;

[0032] Weigh 6 grams of biodegradable resin, 15 grams of porous carbon materia...

Embodiment 2

[0035] According to the weight ratio of 40:10:6:5:1:2, polylactic acid, polyglycerol carbonate, starch, cellulose, and flaky talcum powder with an average particle size of 4 μm were weighed; polylactic acid, polyglycerol carbonate, Pour starch, cellulose and talcum powder into the mixing barrel, heat to 155°C, and adjust the speed of the mixing barrel to 2500r / min, and mechanically shear the materials in the mixing barrel for 1 hour; add the mixture in the mixing barrel to the twin-screw extruder Extruded by melt extrusion to obtain biodegradable resin;

[0036] Weigh polyetheramine, stearic acid and sucrose according to the weight ratio of 0.2:0.05:1; under nitrogen environment, mix polyetheramine, stearic acid and sucrose and heat to 200°C, keep it warm for 2h, then raise the temperature to 600°C ℃, heat preservation for 3h; after cooling to room temperature, pulverize to obtain porous carbon material;

[0037] Weigh 7 grams of biodegradable resin, 16 grams of porous carbon...

Embodiment 3

[0040] According to the weight ratio of 40:12.5:7.5:7.5:1.5:4, polylactic acid, polyglycerol carbonate, starch, cellulose, and flaky talcum powder with an average particle diameter of 5 μm were weighed; polylactic acid, polyglycerol carbonate, Pour starch, cellulose and talcum powder into the mixing tank, heat to 167°C, and adjust the speed of the mixing tank to 2750r / min, mechanically shear the material in the mixing tank for 1.25h; add the mixture in the mixing tank to the twin-screw The extruder is melted and extruded to obtain a biodegradable resin;

[0041] Weigh polyetheramine, stearic acid and sucrose according to the weight ratio of 0.6:0.075:1; under nitrogen environment, mix polyetheramine, stearic acid and sucrose and heat to 300°C, keep it warm for 3.5h, and then raise the temperature to 750°C, heat preservation for 4.5h; after cooling to room temperature, pulverize to obtain porous carbon material;

[0042] Weigh 9 grams of biodegradable resin, 22.5 grams of porous...

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PUM

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Abstract

The invention relates to the technical field of microbial agents, and provides a compound microbial agent for biological control of nematodes and application of the compound microbial agent for biological control of nematodes in order to solve the technical problem that a good and stable nematode control effect cannot be achieved for a long time. The compound microbial agent for biological control of nematodes is composed of active bacteria and an adsorbent, wherein the adsorbent is a biomass-based porous material, and the biomass-based porous material is prepared from biodegradable resin, a porous carbon material, agricultural and sideline products and carbonate; and the active bacteria comprise purpureocillium lilacinum, beauveria bassiana and bacillus thuringiensis. According to the invention, carbon and nitrogen elements are provided for growth of plants in a release process, plant growth is promoted, the survival rate of plants is increased, and the effect of controlling nematodes in a persistent prevention and control manner can be achieved.

Description

technical field [0001] The invention relates to the technical field of microbial bacterial agents, in particular to a compound microbial bacterial agent for biological control of nematodes and its application. Background technique [0002] Root-knot nematode is a type of plant parasitic nematode that endangers agricultural production. Root-knot nematode has a wide range of hosts, including monocotyledonous, dicotyledonous and herbaceous plants. It can cause crop yield reduction by 10%-20%, and in severe cases, it can reach more than 75%. Although the application of chemical nematicides to control root-knot nematodes has quick results, it will greatly reduce the quality of vegetables due to pesticide residues, pollute the environment, destroy the ecological balance, and seriously threaten the sustainable development of agriculture. Although agricultural operations and physical, chemical, Biological control methods can alleviate the harm caused by root-knot nematode to a certa...

Claims

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Application Information

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IPC IPC(8): A01N63/30A01N63/23A01N25/12A01N25/10A01N25/08A01P5/00C05G3/60
CPCA01N63/30A01N63/23A01N25/12A01N25/10A01N25/08C05G3/60
Inventor 祝春华祝博伟余冬冬王付江何孟夏
Owner 中诚国联(河南)生物科技有限公司
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