CN105052901A - Method for enhancing soil fumigant disinfection effect - Google Patents
Method for enhancing soil fumigant disinfection effect Download PDFInfo
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- CN105052901A CN105052901A CN201510461476.XA CN201510461476A CN105052901A CN 105052901 A CN105052901 A CN 105052901A CN 201510461476 A CN201510461476 A CN 201510461476A CN 105052901 A CN105052901 A CN 105052901A
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- soil
- trichloronitromethane
- fumigant
- soil fumigant
- confection
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Abstract
The invention relates to a method for enhancing soil fumigant disinfection effect. The method includes: adding aviation kerosene accounting for 1%-3% of the soil fumigant mass into a soil fumigant, mixing them evenly to obtain a mixed reagent, applying the mixed reagent to soil by means of injection, with the dosage of the mixed reagent accounting for 70%-80% of the dosage of the soil fumigant. Specifically, the soil fumigan is a mixture of trichloronitromethane and 1, 3-dichloropropene or a mixture of trichloronitromethane and dimethyl disulfide. According to the method provided by the invention, aviation kerosene is added into the soil fumigant to reinforce the diffusivity of the soil fumigant and expand the action range of the soil fumigant in soil, thereby realizing the purposes of enhancing disinfection effect and reducing reagent dosage. The method is suitable for fumigation treatment of agricultural soil or matrix.
Description
Technical field
The present invention relates to a kind of method strengthening soil fumigant Disinfection Effect, belong to soil-fumigating field.
Background technology
Continuous cropping obstacle has become the key factor that nowadays restriction China modern agriculture continues high-efficient development, pathogenic microorganism in the middle of soil, pathogenic nematodes colonize in the middle of soil, once the root, the stem that are accumulated to enough quantity and just can contaminate crop, thus initiation soil-borne disease, bring destructive impact to crop.Soil chemistry sterilization is the effective ways solving soil-borne disease, with chloropicrin, 1,3-dichloropropylene, Methyl disulfide are that the chemical soil fumigant of representative exists in fluid form, there is good diffusibility and mobility in the middle of soil, the fumigant of these liquid state is administered to and evaporates into gas after 15-20cm depths in the middle of soil and spread to surrounding, range of scatter can reach 15-30cm around application points, and then the pathogenic bacteria killed in the middle of soil that fumigant gas can arrive and insect.
In order to strengthen the Disinfection Effect of soil fumigant, soil surface covered with plastic film is typically employed in soil disinfection, or the methods such as compacting topsoil, distribute in air to reduce soil fumigant, extend the remaining time of fumigant in the middle of soil, thus extend the action time in the middle of soil.Have not yet to see and how to strengthen fumigant diffusible report in the middle of soil, if enhance the diffusibility of fumigant in the middle of soil, then coordinate the methods such as overlay film, will greatly improve the Disinfection Effect of soil fumigant.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of method strengthening soil fumigant Disinfection Effect, this method adds aviation kerosine in soil fumigant, to strengthen the diffusibility of soil fumigant, expand the sphere of action of soil fumigant in soil, thus realize the object strengthening Disinfection Effect and minimizing dosing, this method is applicable to the fumigation process of agricultural soil or matrix, is specially adapted to the soil disinfection in strawberry, medicinal material, melon, vegetables, nursery.
The technical scheme that the present invention solves the problems of the technologies described above is as follows: a kind of method strengthening soil fumigant Disinfection Effect, the aviation kerosine accounting for soil fumigant quality 1%-3% is added in soil fumigant, mix, obtain confection, confection is applied in soil by the mode of injection, the using dosage of confection is the 70%-80% of soil fumigant using dosage used, wherein, the mixture of described soil fumigant to be the mixture of trichloronitromethane and 1,3-dichloropropylene or described soil fumigant be trichloronitromethane and Methyl disulfide.
On the basis of technique scheme, the present invention can also do following improvement.
Further, add in the mixture of trichloronitromethane and 1,3-dichloropropylene and account for trichloronitromethane and 1, the aviation kerosine of 3-dichloropropylene gross mass 1%, mixes, obtains confection, wherein, the mass ratio of trichloronitromethane and 1,3-dichloropropylene is 7:3,3:7 or 5:5.
Further, in the mixture of trichloronitromethane and Methyl disulfide, add the aviation kerosine accounting for trichloronitromethane and Methyl disulfide gross mass 1%, mix, obtain confection, wherein, the mass ratio of trichloronitromethane and Methyl disulfide is 7:3,3:7 or 5:5.
Further, described aviation kerosine adopts No. 3 aviation kerosines (JetfuelNo.3).
The invention has the beneficial effects as follows:
The invention provides a kind of method strengthening soil fumigant Disinfection Effect, the present invention adds aviation kerosine in liquid-type soil fumigant, strengthen the volatility of soil fumigant and the mobile diffusion in soil, and then increase the sterilization scope of soil fumigant, promote soil fumigant Disinfection Effect, reduce dosing 20%-30%, save the input cost of soil disinfection.
Accompanying drawing explanation
Fig. 1 is distribution map after 1h in embodiment 1 control group and experimental group drug injection used to soil;
Embodiment
Be described principle of the present invention and feature below, example, only for explaining the present invention, is not intended to limit scope of the present invention.
Embodiment 1
Experiment is divided into experimental group and control group, and experimental group institute with medicament is confection, and preparation method adds No. 3 aviation kerosines (JetfuelNo.3) accounting for trichloronitromethane quality 1% in trichloronitromethane, mixes, obtains confection.Control group makes with medicament be trichloronitromethane, does not add aviation kerosine.
Determination experiment group and the distribution of control group institute with medicament in soil: the concrete emission adopting earth pillar system measurement trichloronitromethane, step is as follows: pvc pipe is as earth pillar main body, and place above and distribute flow case, bottom is leaching gathering unit.Pvc pipe height 72cm, internal diameter 15cm, 5cm under soil table respectively, 10cm, 15cm, 20cm, 25cm, 30cm, 40cm, 50cm, 60cm place arranges 9 sample points, during dispenser, by being arranged in advance apart from pvc pipe top 20cm depth and extending to the stainless pin at earth pillar center, with the also sealing rapidly of gas-tight syringe fast injection 0.8g medicament, 1h after dispenser, the Hamilton air hermetic micro syringe of 5ml is adopted to extract 0.5ml soil gas at each sample tap, inject clean 20mlGC headspace sampling bottle immediately, rapidly with the aluminium lid sealing that silica gel pad is housed.The indoor environment temperature scope of whole test is 23-28 DEG C.
As shown in Figure 1, the dispenser degree of depth is 20cm, after dispenser 1h, control group gas concentration is the highest appears at the 15-25cm degree of depth, and the highest 10-30cm degree of depth that appears at of experimental group gas concentration, the range of scatter of experimental group confection in soil, far away higher than control group, illustrates that confection prepared by the present invention effectively can improve the diffusion effect of lifting soil fumigant in soil.
Embodiment 2
Material: trichloronitromethane, No. 3 aviation kerosines (JetfuelNo.3), plastic film
Experiment place: Changping District, Beijing strawberry cultivating greenhouse by solar heat
Experiment is divided into untreated fish group, experimental group and control group, untreated fish group does not carry out any process to soil, experimental group institute with medicament is confection, preparation method adds No. 3 aviation kerosines accounting for trichloronitromethane liquid quality 1% in trichloronitromethane liquid, mix, obtain confection, control group institute with medicament is trichloronitromethane liquid, does not add aviation kerosine.
Use soil disinfection syringe to be expelled to equably in soil by medicament, control group pharmacy application dosage used is 35g/m
2(A group), experimental group pharmacy application dosage used is respectively 80% (B group, 28g/m of control group
2) and 70% (C group, 24.5g/m
2), then at control group and experimental group process plot surface coverage plastic film, stifling 7 days of plastic film covering, after stifling end, throws off film, and sterilization plot opens gas more than 7 days, then carries out the field planting of strawberry.
The situation of change of pathogen and root-knot nematode in soil before and after check processing.The mensuration of soil nematodes control efficiency adopts centrifugal process to be separated; Fusarium oxysporum adopts Komada method to be separated, and phytophthora adopts Masago method to be separated.100g soil specimen is taken during nematode separation determination; Pathogen takes 15g soil specimen when measuring.The Disinfection Effect of contrast three kinds of processing modes, result is as following table:
Table 1
As can be seen from the above table, C group confection used consumption, when being reduced to 70% of the specified dosage of trichloronitromethane liquid, still has good control effects to soil-borne pathogen and soil nematodes, not remarkable with 100% dosage trichloronitromethane liquid process difference.Describe add No. 3 aviation kerosines in trichloronitromethane after, reduce the usage amount of medicament, can promote the use of in field further.
Embodiment 3
Material: trichloronitromethane, 1,3-dichloropropylene, No. 3 aviation kerosines (JetfuelNo.3), plastic film
Experiment place: Changping District, Beijing green cucumber greenhouse by solar heat
This experiment stoste is trichloronitromethane and 1, the mixture of 3-dichloropropylene 7:3 in mass ratio, experimental group institute with medicament is confection, and preparation method adds No. 3 aviation kerosines accounting for stock solution quality 1% in stoste, control group institute with medicament is stoste, does not add aviation kerosine.Untreated fish group does not carry out any process to soil.
Use small-sized soil disinfecting device, be administered to equably in soil by medicament, the amount of application of control group stoste is 45g/m
2(A group), the application dosage of experimental group confection is respectively 80% (B group, 36g/m of control group
2) and 70% (C group, 31.5g/m
2), then at control group and experimental group process plot surface coverage plastic film, stifling 7 days of plastic film covering, after stifling end, throws off film, and sterilization plot opens gas more than 7 days, then carries out the field planting of second stubble crop.
The situation of change of pathogen and root-knot nematode in soil before and after check processing.The mensuration of the control efficiency of soil nematodes adopts centrifugal process to be separated; Fusarium oxysporum adopts Komada method to be separated, and phytophthora adopts Masago method to be separated.100g soil specimen is taken during nematode separation determination; Pathogen takes 15g soil specimen when measuring.The Disinfection Effect of contrast three kinds of processing modes, result is as following table:
Table 2
As can be seen from the above table, C group confection used, when being reduced to 70% of the specified dosage of stoste, still has good control effects to soil-borne pathogen and soil nematodes, not remarkable with 100% dosage stoste process difference.Add No. 3 aviation kerosines in the mixture of trichloronitromethane and 1,3-dichloropropylene after, reduce the usage amount of medicament, can further promote the use of in field.
Embodiment 4
Material: trichloronitromethane, Methyl disulfide, No. 3 aviation kerosines (JetfuelNo.3), plastic film
Experiment place: Changping District, Beijing green cucumber greenhouse by solar heat
This experiment stoste is the mixture of trichloronitromethane and Methyl disulfide 3:7 in mass ratio, experimental group institute with medicament is confection, confection is in stoste, add No. 3 aviation kerosines accounting for stock solution quality 1%, and control group institute with medicament is stoste, does not add aviation kerosine.
Use small-sized soil disinfecting device to be administered to equably in the middle of soil by medicament, the amount of application of control group stoste used is 80g/m
2(A group), the application dosage of experimental group confection used is respectively 80% (B group, 64g/m of control group
2) and 70% (C group, 56g/m
2), then at control group and experimental group process plot surface coverage plastic film, stifling 7 days of plastic film covering, after stifling end, throws off film, and sterilization plot opens gas more than 7 days, then carries out the field planting of second stubble crop.
The situation of change of pathogen and root-knot nematode in the middle of soil before and after check processing.The mensuration of the control efficiency of soil nematodes adopts centrifugal process to be separated; Fusarium oxysporum adopts Komada method to be separated, and phytophthora adopts Masago method to be separated.100g soil specimen is taken during nematode separation determination; Pathogen takes 15g soil specimen when measuring.The Disinfection Effect of contrast three kinds of processing modes, result is as following table:
Table 3
As can be seen from the above table, C group confection used, when being reduced to 70% of the specified dosage of stoste, still has good control effects to soil-borne pathogen and soil nematodes, not remarkable with 100% dosage stoste process difference.Add No. 3 aviation kerosines in stoste after, reduce the usage amount of stoste, can promote the use of in field further.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (4)
1. one kind strengthens the method for soil fumigant Disinfection Effect, it is characterized in that, the aviation kerosine accounting for soil fumigant quality 1%-3% is added in soil fumigant, mix, obtain confection, confection is applied in soil by the mode of injection, the using dosage of confection is the 70%-80% of soil fumigant using dosage used, wherein, the mixture of described soil fumigant to be the mixture of trichloronitromethane and 1,3-dichloropropylene or described soil fumigant be trichloronitromethane and Methyl disulfide.
2. method according to claim 1, it is characterized in that, to trichloronitromethane and 1, add the aviation kerosine accounting for trichloronitromethane and 1,3-dichloropropylene gross mass 1% in the mixture of 3-dichloropropylene, mix, obtain confection, wherein, the mass ratio of trichloronitromethane and 1,3-dichloropropylene is 7:3,3:7 or 5:5.
3. method according to claim 1, it is characterized in that, the aviation kerosine accounting for trichloronitromethane and Methyl disulfide gross mass 1% is added in the mixture of trichloronitromethane and Methyl disulfide, mix, obtain confection, wherein, the mass ratio of trichloronitromethane and Methyl disulfide is 7:3,3:7 or 5:5.
4., according to the arbitrary described method of claim 1-3, it is characterized in that, described aviation kerosine adopts No. 3 aviation kerosines.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105940802A (en) * | 2016-04-28 | 2016-09-21 | 孙垂荣 | Environment-friendly reduction-method soil disinfection and sterilization process |
| CN108911879A (en) * | 2018-08-23 | 2018-11-30 | 北京市植物保护站 | A kind of bioactive functions reduction disinfection particle and sterilization method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101480178A (en) * | 2008-01-11 | 2009-07-15 | 中国农业科学院植物保护研究所 | Mixed pesticide capsule preparation for preventing and treating nematode and soil-borne disease |
| CN101491244A (en) * | 2008-01-24 | 2009-07-29 | 中国农业科学院植物保护研究所 | Application technique of compound of dimethyl disulfide and chloreopicrin as soil fumigant |
| CN104798813A (en) * | 2015-04-22 | 2015-07-29 | 吴迪 | Method for preparing soil sanitizer |
-
2015
- 2015-07-30 CN CN201510461476.XA patent/CN105052901A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101480178A (en) * | 2008-01-11 | 2009-07-15 | 中国农业科学院植物保护研究所 | Mixed pesticide capsule preparation for preventing and treating nematode and soil-borne disease |
| CN101491244A (en) * | 2008-01-24 | 2009-07-29 | 中国农业科学院植物保护研究所 | Application technique of compound of dimethyl disulfide and chloreopicrin as soil fumigant |
| CN104798813A (en) * | 2015-04-22 | 2015-07-29 | 吴迪 | Method for preparing soil sanitizer |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105940802A (en) * | 2016-04-28 | 2016-09-21 | 孙垂荣 | Environment-friendly reduction-method soil disinfection and sterilization process |
| CN105940802B (en) * | 2016-04-28 | 2017-11-14 | 孙垂荣 | Environmental preservation type reducing process soil disinfection sterilization process |
| CN108911879A (en) * | 2018-08-23 | 2018-11-30 | 北京市植物保护站 | A kind of bioactive functions reduction disinfection particle and sterilization method |
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Application publication date: 20151118 |