CN1522573A - Plant source nematocide preparation process - Google Patents
Plant source nematocide preparation process Download PDFInfo
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- CN1522573A CN1522573A CNA031508995A CN03150899A CN1522573A CN 1522573 A CN1522573 A CN 1522573A CN A031508995 A CNA031508995 A CN A031508995A CN 03150899 A CN03150899 A CN 03150899A CN 1522573 A CN1522573 A CN 1522573A
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Abstract
The present invention relates to a method for preparing plant-oriented nematode-killing preparation, its mainly includes the following steps: pulverizing biomass, placing it into reactor, heating reactor to 105 deg.C, heat-preserving for 1 hr, introducing air, heating it to 230 deg.C from 105 deg.C, heat-preserving for above 2 hr., collecting fraction, adding catalyst A, heating it to 320 deg.C from 230 deg.C, heat-preserving for 2.5 hr., adding catalyst B, heating it to 400 deg.C from 320 deg.C, heat-preserving for 2hr., then stopping collection and stopping introduction of air, continuously heating, heating it to 500 deg.C from 400 deg.C, heat-preserving for 1.5 hr. The product is completely charred.
Description
Technical field
The invention belongs to method for producing insecticide, particularly a kind of preparation method of plant resource mematocide.
Background technology
Root knot nematode disease is to occur on the vegetables comparatively one of severe diseases, multiple common vegetables such as main harm cucumber, balsam pear, tomato, eggplant, Kidney bean, celery, spinach.Root knot nematode disease takes place to increase the weight of year by year, and production loss reaches 30%～50%, makes that ruining the seedling incident of heavily planting often takes place; Root-knot nematode harm has simultaneously increased the weight of the native generation that passes property fungal disease and parts of fine fungus diseases such as fusarium wilt, root rot again, has become the big obstacle that current vegetables produce.At present, prevent and treat the general two big nematocides that adopt of root knot nematode disease in the production, be fumigating nematicide (fumigant ne maticides) and non-fumigating nematicide (nonfumigant nematicides), whole world nematocide kind has 30 kinds approximately, commonly used is no more than 10 kinds, and be the agricultural chemicals of high poison or high residue mostly, on vegetables, forbidden using.So exploitation is efficient, low toxicity, low residual, eco-friendly nematocide are that agricultural community presses for.
Present used nematocide be nonspecific to the toxic action of Plant nematode, and toxicity is higher, very easily causes the harm to people and other non-target organism, and the severe contamination environment for human survival.Improve constantly along with the mankind's environmental consciousness and to the requirement of self quality of life, use the medicament of high-efficiency low-toxicity to prevent and treat Plant nematode, particularly the application on vegetables, tealeaves, Chinese herbal medicine, flowers and ornamental plant especially seems urgent.
Living beings (Biomass) are meant the agriculture and forestry organic waste material that those generate because of photosynthesis, as: stalk, rice husk, wood chip and bagasse etc.China's biomass resource is very abundant, and statistical data shows that the annual production of crops straw is about 4.5 hundred million tons, about 5,000 ten thousand tons of rice husk, about 2400 ten thousand steres of living beings that the forestry process produces.The chemical composition of forming living beings also contains a spot of plant glycoside (Glycosides), vegetable phenol (Phenolics), plants essential oil secondary metabolites such as (Essenential oil) based on lignin, cellulose, hemicellulose.It is reported that the contained secondary metabolite such as a part of glucoside, terpene, quinone and phenols, lignin etc. of plant has physiological actions such as pest-resistant sterilization.
Since the eighties in 20th century, the research of extracting natural nematicide material from plant causes people's interest gradually, so far nearly 100 plant species of existing section more than 40 eelworm-killing activity that has been in the news.India is doing at most aspect the screening of nematicide plant resources.Western countries such as American and Britain, moral also began to have the report of this respect in recent years.China's this respect also had some research reports in recent years, as: Wen Yanhua etc. have measured the activity of 10 sections, the 14 plant species extracts in Hubei, Shaanxi and Guangdong Province to the latent root-knot nematode of pine wood nematode, peanut root knot worm and paddy rice; Cai Qiujin etc. have carried out plant thick extraction of the juice to partly the puncture screening and the test of toxic effect of nematode of China fir; Yang Xiujuan etc. have compared biologically active and the virulence of different plant extraction liquids to southern root knot nematode in 2 age; Report such as Zhuan Zhanxing Datura extract is to the preventive effect of root knot nematode; These work mostly are raw material with the medicinal plant, and as extracting medium, the source is subjected to certain restriction, problems such as environmental pollution are arranged, and cost is higher with solvent.
Summary of the invention
The objective of the invention is to overcome above-mentioned shortcoming and provide a kind of and make insect be difficult for developing immunity to drugs,, easily decompose and the catabolite environmental sound preparation method of the plant resource mematocide of no residue accumulation non-target organism safety.
The technical solution adopted for the present invention to solve the technical problems.The preparation method of this plant resource mematocide mainly comprises the steps:
(a) living beings are pulverized, dropped into reactor;
(b) with the reactor heating, be warming up to 105 ℃, insulation 1h;
(c) feed gas, temperature is risen to 230 ℃ from 105 ℃, more than the insulation 2h, collect cut;
(d) add catalyst A, temperature rises to 320 ℃, insulation 2.5h from 230 ℃;
(e) add catalyst B, temperature rises to 400 ℃ from 320 ℃, behind the insulation 2h, stops to collect, and stops to feed gas;
(f) continue heating, temperature rises to 500 ℃, insulation 1.5h, charing fully, end heating from 400 ℃.
Described catalyzer mainly is: alumina silicate or manganese salt or alkali-metal one or more combination.Described living beings are mainly agriculture and forestry organic waste materials such as stalk, rice husk, wood chip and bagasse.Described gas is meant nitrogen or inert gas.It is 80 ℃ to 180 ℃ that floss hole is collected temperature.
With living beings (agriculture and forestry organic waste material) is raw material, in the presence of specific catalyst and inert gas, strict control air and temperature, extract by thermal medium, the plant resource preparation that has prepared mixed type, again this plant resource preparation is applied to prevent and treat the cucumber root knot nematode disease the Hangzhou vegetables, field trial shows that this plant resource preparation has certain preventive effect to the cucumber root knot nematode disease.
The plant resource vegetables mematocide of these research and development is the harmonious agricultural chemicals (Environment acceptable pesticides) of a kind of environment, insect is difficult for developing immunity to drugs, to non-target organism safety, easily decompose and the catabolite environmental sound no residue accumulation.Use this plant resource vegetables mematocide can improve plant (vegetables) immunocompetence, stimulating growth; Can effectively solve the disease problem in the current pollution-free vegetable production.On the other hand, if agriculture and forestry organic waste material will be caused the secondary pollution of agroecological environment as not dealing carefully with.So this research is particularly conducive to environmental protection, so have remarkable economical, society and ecological significance.
The effect that the present invention is useful is: 1. cheap raw material.With living beings (agriculture and forestry organic waste material, as: stalk, rice husk, wood chip and bagasse etc.) is raw material, and this improves agroecological environment to saving living resources, will produce far-reaching influence; 2. diverse in function.Contain plant glycoside, vegetable phenol (guaiacol etc.), plants essential oil etc. and have the disease worm and defend bioactive plant resource secondary metabolites, it also has the effect that improves plant immune ability, stimulating growth; 3. technology is easy.In the presence of specific catalyst and inert gas, strict control air and temperature are extracted by thermal medium, prepare multicomponent plant resource mematocide, and this technology need not to use any solvent; 4. comprehensive utilization.The residue of living beings after extracting is the mesh carbide, can make deodorization adsorbent and filler; 5. the domestic standard chemical finger-print of setting up plant resource mematocide active component first.
Embodiment:
The invention will be further described below in conjunction with embodiment.
Embodiment 1:
Living beings (as: stalk, rice husk, wood chip and bagasse etc.) are pulverized, dropped in the reactor, heating, temperature rises to 105 ℃ from room temperature, and insulation 1h feeds nitrogen then, and temperature is risen to 230 ℃ from 105 ℃, more than the insulation 2h, collects cut.Add alkali metal again, temperature rises to 320 ℃, insulation 2.5h, collection cut from 230 ℃.Add manganese salt then, temperature rises to 400 ℃ from 320 ℃, behind the insulation 2h, stops to collect, and stops to feed nitrogen.Continue heating then, temperature rises to 500 ℃, insulation 1.5h, charing fully, end heating from 400 ℃.Product mainly contains as vegetable phenols such as guaiacol, plant glycosides such as flavonoids, low molecular compound such as plants essential oil such as terpenoid and acetic acid.Dewater exceptionally, wherein the plant resource secondary metabolites accounts for about 5 ‰, and acids is about about 15%, and phenols accounts for 5%, and alcohols accounts for 2%.Yield: 100 kilograms of living beings can obtain about 25 kilograms of deodorant, about 5 kilograms of fluid product.
Embodiment 2:
Living beings (as: stalk, rice husk, wood chip and bagasse etc.) are pulverized, dropped in the reactor, heating, temperature rises to 105 ℃ from room temperature, and insulation 1h feeds inert gas then, and temperature is risen to 230 ℃ from 105 ℃, more than the insulation 2h, collects cut.Add alumina silicate again, temperature rises to 320 ℃, insulation 2.5h from 230 ℃.Add manganese salt then, temperature rises to 400 ℃ from 320 ℃, behind the insulation 2h, stops to collect, and stops to feed inert gas.Continue heating then, temperature rises to 500 ℃, insulation 1.5h, charing fully, end heating from 400 ℃.
Claims (6)
1, a kind of preparation method of plant resource mematocide is characterized in that: comprise the steps:
(a) living beings are pulverized, dropped into reactor;
(b) with the reactor heating, be warming up to 105 ℃, insulation 1h;
(c) feed gas, temperature is risen to 230 ℃ from 105 ℃, more than the insulation 2h, collection is heated up in a steamer
Divide;
(d) add catalyst A, temperature rises to 320 ℃, insulation 2.5h from 230 ℃;
(e) add catalyst B, temperature rises to 400 ℃ from 320 ℃, behind the insulation 2h, stops to receive
Collection stops to feed gas;
(f) continue heating, temperature rises to 500 ℃ from 400 ℃, insulation 1.5h, and charing fully,
Finish heating.
2, the preparation method of plant resource mematocide according to claim 1 is characterized in that: described catalyst A is: alumina silicate or manganese salt or alkali metal.
3, the preparation method of plant resource mematocide according to claim 1 is characterized in that: described catalyst B is: alumina silicate or manganese salt or alkali metal.
4, the preparation method of plant resource mematocide according to claim 1 is characterized in that: described living beings are mainly agriculture and forestry organic waste materials such as stalk, rice husk, wood chip and bagasse.
5, the preparation method of plant resource mematocide according to claim 1 is characterized in that: described gas is meant nitrogen or inert gas.
6, according to claim 1 or 2 or 3 or the preparation method of 4 or 5 described plant resource mematocides, it is characterized in that: it is 80 ℃ to 180 ℃ that floss hole is collected temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA031508995A CN1522573A (en) | 2003-09-11 | 2003-09-11 | Plant source nematocide preparation process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA031508995A CN1522573A (en) | 2003-09-11 | 2003-09-11 | Plant source nematocide preparation process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1522573A true CN1522573A (en) | 2004-08-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA031508995A Pending CN1522573A (en) | 2003-09-11 | 2003-09-11 | Plant source nematocide preparation process |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101422162B (en) * | 2008-12-09 | 2011-04-13 | 昆明线敌生物科技有限公司 | Plant source preparation for preventing and treating Meloidogyne incognita disease and preparation method thereof |
| CN105409506A (en) * | 2015-11-09 | 2016-03-23 | 广西壮族自治区农业科学院植物保护研究所 | Preparation method of sugarcane leaf compost for preventing and curing crop root-knot nematode disease, as well as prevention and cure method using sugarcane leaf compost |
| CN107810992A (en) * | 2016-09-13 | 2018-03-20 | 德大生技有限公司 | For manufacturing the method and its granulating unit of natural insecticide |
| CN109864983A (en) * | 2019-04-16 | 2019-06-11 | 广西大学 | It is a kind of using bagasse as essential oil sustained-release antibacterial capsule of wall material and preparation method thereof |
-
2003
- 2003-09-11 CN CNA031508995A patent/CN1522573A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101422162B (en) * | 2008-12-09 | 2011-04-13 | 昆明线敌生物科技有限公司 | Plant source preparation for preventing and treating Meloidogyne incognita disease and preparation method thereof |
| CN105409506A (en) * | 2015-11-09 | 2016-03-23 | 广西壮族自治区农业科学院植物保护研究所 | Preparation method of sugarcane leaf compost for preventing and curing crop root-knot nematode disease, as well as prevention and cure method using sugarcane leaf compost |
| CN107810992A (en) * | 2016-09-13 | 2018-03-20 | 德大生技有限公司 | For manufacturing the method and its granulating unit of natural insecticide |
| CN109864983A (en) * | 2019-04-16 | 2019-06-11 | 广西大学 | It is a kind of using bagasse as essential oil sustained-release antibacterial capsule of wall material and preparation method thereof |
| CN109864983B (en) * | 2019-04-16 | 2021-04-23 | 广西大学 | Essential oil slow-release antibacterial capsule taking bagasse as wall material and preparation method thereof |
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