CN104247713A - Composition for soil fumigation - Google Patents
Composition for soil fumigation Download PDFInfo
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- CN104247713A CN104247713A CN201310285618.2A CN201310285618A CN104247713A CN 104247713 A CN104247713 A CN 104247713A CN 201310285618 A CN201310285618 A CN 201310285618A CN 104247713 A CN104247713 A CN 104247713A
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- allyl isothiocyanate
- methyl disulfide
- soil
- composition
- root
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- 239000000203 mixture Substances 0.000 title claims abstract description 66
- 239000002689 soil Substances 0.000 title abstract description 20
- 238000003958 fumigation Methods 0.000 title abstract 3
- ZOJBYZNEUISWFT-UHFFFAOYSA-N allyl isothiocyanate Chemical compound C=CCN=C=S ZOJBYZNEUISWFT-UHFFFAOYSA-N 0.000 claims abstract description 116
- WQOXQRCZOLPYPM-UHFFFAOYSA-N dimethyl disulfide Chemical compound CSSC WQOXQRCZOLPYPM-UHFFFAOYSA-N 0.000 claims abstract description 96
- 235000016720 allyl isothiocyanate Nutrition 0.000 claims abstract description 56
- 240000009088 Fragaria x ananassa Species 0.000 claims abstract description 4
- 244000061176 Nicotiana tabacum Species 0.000 claims abstract description 4
- 235000002637 Nicotiana tabacum Nutrition 0.000 claims abstract description 4
- 244000241257 Cucumis melo Species 0.000 claims abstract description 3
- 235000015510 Cucumis melo subsp melo Nutrition 0.000 claims abstract description 3
- 235000013399 edible fruits Nutrition 0.000 claims abstract description 3
- 239000000463 material Substances 0.000 claims abstract description 3
- 239000004480 active ingredient Substances 0.000 claims description 12
- 239000000470 constituent Substances 0.000 claims description 4
- 235000016623 Fragaria vesca Nutrition 0.000 claims description 3
- 235000011363 Fragaria x ananassa Nutrition 0.000 claims description 3
- FJJCIZWZNKZHII-UHFFFAOYSA-N [4,6-bis(cyanoamino)-1,3,5-triazin-2-yl]cyanamide Chemical compound N#CNC1=NC(NC#N)=NC(NC#N)=N1 FJJCIZWZNKZHII-UHFFFAOYSA-N 0.000 claims description 2
- 235000021012 strawberries Nutrition 0.000 abstract 1
- 235000013311 vegetables Nutrition 0.000 abstract 1
- 238000000034 method Methods 0.000 description 47
- 239000003814 drug Substances 0.000 description 28
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- 230000001988 toxicity Effects 0.000 description 21
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- 238000009472 formulation Methods 0.000 description 16
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- 230000002195 synergetic effect Effects 0.000 description 13
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- 238000012545 processing Methods 0.000 description 12
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- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 11
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- 230000000694 effects Effects 0.000 description 9
- 241000243785 Meloidogyne javanica Species 0.000 description 7
- 241000244206 Nematoda Species 0.000 description 7
- 238000010998 test method Methods 0.000 description 7
- BIHPYCDDPGNWQO-UHFFFAOYSA-N 5-iai Chemical compound C1=C(I)C=C2CC(N)CC2=C1 BIHPYCDDPGNWQO-UHFFFAOYSA-N 0.000 description 6
- 108010010803 Gelatin Proteins 0.000 description 6
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 6
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 6
- 229920002472 Starch Polymers 0.000 description 6
- 239000003795 chemical substances by application Substances 0.000 description 6
- 229920000159 gelatin Polymers 0.000 description 6
- 239000008273 gelatin Substances 0.000 description 6
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- XNZOTQPMYMCTBZ-UHFFFAOYSA-N allyl methyl disulphide Natural products CSSCC=C XNZOTQPMYMCTBZ-UHFFFAOYSA-N 0.000 description 5
- 239000002316 fumigant Substances 0.000 description 5
- 239000003905 agrochemical Substances 0.000 description 4
- JHIVVAPYMSGYDF-UHFFFAOYSA-N cyclohexanone Chemical compound O=C1CCCCC1 JHIVVAPYMSGYDF-UHFFFAOYSA-N 0.000 description 4
- 238000003306 harvesting Methods 0.000 description 4
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- 241000894006 Bacteria Species 0.000 description 3
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- 235000012828 Citrullus lanatus var citroides Nutrition 0.000 description 3
- 239000005644 Dazomet Substances 0.000 description 3
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- GZCGUPFRVQAUEE-SLPGGIOYSA-N aldehydo-D-glucose Chemical compound OC[C@@H](O)[C@@H](O)[C@H](O)[C@@H](O)C=O GZCGUPFRVQAUEE-SLPGGIOYSA-N 0.000 description 3
- 230000008485 antagonism Effects 0.000 description 3
- 239000012752 auxiliary agent Substances 0.000 description 3
- 210000000481 breast Anatomy 0.000 description 3
- 239000003153 chemical reaction reagent Substances 0.000 description 3
- 230000006378 damage Effects 0.000 description 3
- QAYICIQNSGETAS-UHFFFAOYSA-N dazomet Chemical compound CN1CSC(=S)N(C)C1 QAYICIQNSGETAS-UHFFFAOYSA-N 0.000 description 3
- 239000012895 dilution Substances 0.000 description 3
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- 239000003995 emulsifying agent Substances 0.000 description 3
- 239000004503 fine granule Substances 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 238000007711 solidification Methods 0.000 description 3
- 230000008023 solidification Effects 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 238000004659 sterilization and disinfection Methods 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- 230000001629 suppression Effects 0.000 description 3
- 231100000820 toxicity test Toxicity 0.000 description 3
- 230000007306 turnover Effects 0.000 description 3
- 235000002566 Capsicum Nutrition 0.000 description 2
- 240000008574 Capsicum frutescens Species 0.000 description 2
- 235000007688 Lycopersicon esculentum Nutrition 0.000 description 2
- 244000070406 Malus silvestris Species 0.000 description 2
- 240000003768 Solanum lycopersicum Species 0.000 description 2
- GZUXJHMPEANEGY-UHFFFAOYSA-N bromomethane Chemical compound BrC GZUXJHMPEANEGY-UHFFFAOYSA-N 0.000 description 2
- 239000001390 capsicum minimum Substances 0.000 description 2
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- 244000037666 field crops Species 0.000 description 2
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- 238000003973 irrigation Methods 0.000 description 2
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- 230000007774 longterm Effects 0.000 description 2
- 238000009335 monocropping Methods 0.000 description 2
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- 239000003643 water by type Substances 0.000 description 2
- UHPMCKVQTMMPCG-UHFFFAOYSA-N 5,8-dihydroxy-2-methoxy-6-methyl-7-(2-oxopropyl)naphthalene-1,4-dione Chemical compound CC1=C(CC(C)=O)C(O)=C2C(=O)C(OC)=CC(=O)C2=C1O UHPMCKVQTMMPCG-UHFFFAOYSA-N 0.000 description 1
- 240000004507 Abelmoschus esculentus Species 0.000 description 1
- 240000003291 Armoracia rusticana Species 0.000 description 1
- 244000152970 Digitaria sanguinalis Species 0.000 description 1
- 235000010823 Digitaria sanguinalis Nutrition 0.000 description 1
- 239000005959 Fosthiazate Substances 0.000 description 1
- 241000223218 Fusarium Species 0.000 description 1
- 241000508192 Fusarium oxysporum f. sp. niveum Species 0.000 description 1
- 241000238631 Hexapoda Species 0.000 description 1
- STECJAGHUSJQJN-USLFZFAMSA-N LSM-4015 Chemical compound C1([C@@H](CO)C(=O)OC2C[C@@H]3N([C@H](C2)[C@@H]2[C@H]3O2)C)=CC=CC=C1 STECJAGHUSJQJN-USLFZFAMSA-N 0.000 description 1
- 244000141359 Malus pumila Species 0.000 description 1
- 241001143352 Meloidogyne Species 0.000 description 1
- 241000243786 Meloidogyne incognita Species 0.000 description 1
- 235000003143 Panax notoginseng Nutrition 0.000 description 1
- 241000180649 Panax notoginseng Species 0.000 description 1
- 241000918585 Pythium aphanidermatum Species 0.000 description 1
- 244000042430 Rhodiola rosea Species 0.000 description 1
- 235000003713 Rhodiola rosea Nutrition 0.000 description 1
- 241000220317 Rosa Species 0.000 description 1
- 241000109329 Rosa xanthina Species 0.000 description 1
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- 206010043866 Tinea capitis Diseases 0.000 description 1
- 241000082085 Verticillium <Phyllachorales> Species 0.000 description 1
- 244000172533 Viola sororia Species 0.000 description 1
- 241000607479 Yersinia pestis Species 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
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- 230000007423 decrease Effects 0.000 description 1
- 230000001066 destructive effect Effects 0.000 description 1
- VLXBWPOEOIIREY-UHFFFAOYSA-N dimethyl diselenide Natural products C[Se][Se]C VLXBWPOEOIIREY-UHFFFAOYSA-N 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
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- 235000013373 food additive Nutrition 0.000 description 1
- 239000002778 food additive Substances 0.000 description 1
- DUFVKSUJRWYZQP-UHFFFAOYSA-N fosthiazate Chemical compound CCC(C)SP(=O)(OCC)N1CCSC1=O DUFVKSUJRWYZQP-UHFFFAOYSA-N 0.000 description 1
- 244000053095 fungal pathogen Species 0.000 description 1
- 230000035876 healing Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
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- 231100000225 lethality Toxicity 0.000 description 1
- 230000001717 pathogenic effect Effects 0.000 description 1
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- 239000002985 plastic film Substances 0.000 description 1
- 229920006255 plastic film Polymers 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 235000010482 polyoxyethylene sorbitan monooleate Nutrition 0.000 description 1
- 229920000053 polysorbate 80 Polymers 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000006283 soil fumigant Substances 0.000 description 1
- 244000000034 soilborne pathogen Species 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 239000010902 straw Substances 0.000 description 1
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Landscapes
- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
The invention relates to a composition for soil fumigation, the effective components of which are allyl isothiocyanate (A) and dimethyl disulfide (B) in a mass ratio of 1:1-1:100. The composition provided by the invention is used for soil fumigation of melons and vegetables, medicinal materials, strawberries, tobacco, fruit trees, and nurseries.
Description
Technical field
The present invention relates to a kind of composition for soil-fumigating, belong to plant protection art, especially by allyl isothiocyanate and the composite composition of Methyl disulfide.
Background technology
Soil-borne disease, eelworm harm and continuous cropping obstacle have become the key factor of restriction modern agriculture.The pathogene of soil-borne disease colonizes in soil, once run up to enough pathogenic floras, just can infect root of the crop, stem, cause destructive impact to crop.Its pathogene strong stress resistance, generally can in soil remaining several years, as long as this type of disease occurred in field, all can recur later.For day by day serious biography disease, not yet there is effective healing potion in existing market.
Nematode is also a very harmful class disease, and some crops are even difficult to plant development because of eelworm harm, as Shandong great Jiang growing area just faces the wildness of nematode.In recent years, " bark favus " that nematode is caused spreads unchecked, and causes quality to decline, and output reduces.Conventional fosthiazate is overused, and faces the risk of highly resistant.Some violated high-toxic pesticides are often existing in field.Continuous cropping obstacle is also a great problem in producing at present, and popular, the enrichment that harmful substance is long-term of soil-borne disease, the shortage of some trace element all can cause bad Succession cropping effect, hinder the seed output and quality of crop.
This kind of key to the issue is prevention, avoids its outburst by measures such as soil disinfection, crop rotation, plantation disease-resistant varieties, spreads.Prove through tests a large amount of both at home and abroad, soil fumigant has good Disinfection Effect, can prevent and treat soil-borne disease fungal pathogens, meloidogyne, reduces plant lethality, improves crop growing state, output.Since its application, the agricultural production experience of decades illustrates, soil-fumigating is that plant pest manages requisite important measures.
The at present both at home and abroad kind of fumigant and quantity wretched insufficiency, Celfume, because of dangerous to environment, the mankind, is in the evolution be eliminated.Large fumigant decorporate as novel fumigant provides wide application space, market is needed badly and is wanted the appearance of safe and efficient fumigant.The requirement of market to Celfume substitute is: input cost does not increase or increases less, and crop yield and quality do not reduce, and harvest time does not postpone, and net income does not reduce, effect stability, and energy Long-Time Service, without new environmental problem.
Allyl isothiocyanate, has another name called athomin, and English general allylisothiocyanate by name (being called for short AITC) is the active component extracted from horseradish plant.AITC always for food additives, discovered in recent years its there is the effect of good sterilization, desinsection, weeding.
Methyl disulfide, the general dimethyl disulfide by name of chemistry, is called for short DMDS, is a kind of widely used intermediate, can be used as the uses such as solvent, plasticizer, additive.It all has good activity to weeds, root-knot nematode, soil-borne pathogen.
In the practice of agriculture, grower often by composite for multiple fumigant use, can improve respective effect like this, and expanding prevention is composed, and can reduce again the dosage of medicament, saves cost accounting.At present, allyl isothiocyanate and the composite research for soil-fumigating of Methyl disulfide are not seen in report.
Summary of the invention
Through repeated test repeatedly, inventor surprisingly find by allyl isothiocyanate and Methyl disulfide composite for soil-fumigating, all have good activity to weeds, root-knot nematode, sickle-like bacteria, the land for growing field crops preventive effect of its combination is better than the land for growing field crops preventive effect of single dose.By allyl isothiocyanate and the composite use of Methyl disulfide, respective effect can be improved, the dosage of medicament can be reduced again, save cost accounting.
Technical scheme of the present invention is:
A kind of composition for soil-fumigating, active ingredient is allyl isothiocyanate (A) and Methyl disulfide (B), wherein the mass ratio of effective constituents A and B is 1: 1 ~ 1: 100, mass ratio is preferably 1: 10 ~ 1: 100, is better 1: 20 ~ 1: 100.
Described a kind of composition for soil-fumigating, is characterized in that the soil-fumigating of composition for melon dish, medicinal material, strawberry, tobacco, fruit tree, nursery.
Described a kind of composition for soil-fumigating, is characterized in that composition is applied to field by the mode of drip irrigation or injection, also can be processed into specific formulation and use.
Embodiment
Different compound is carried out Combination application, is one of effective control measures of administering the disease-resistant problem of damage by disease and insect.Synergistic combination can improve the effect of medicament significantly, reduces the usage amount of agricultural chemicals.By composite test concrete in a large number, unexpected discovery allyl isothiocyanate and Methyl disulfide have significant synergies.The embodiment provided below for elaborating the present invention, and does not form limiting the scope of the invention.Test method used by embodiment, if without specified otherwise, is conventional method; Percentage composition in embodiment, if without specified otherwise, is weight percentage.
Biologicall test example 1: allyl isothiocyanate and the composite Toxicity Determination to lady's-grass of Methyl disulfide
Subjects: lady's-grass (Digitaria sanguinalis (L.) Scop), pick up from field, select full consistent seed, vernalization is for subsequent use.
Test method: allyl isothiocyanate and Methyl disulfide are prepared into 5 series mass concentration by test proportioning, i.e. 50 μ g/mL, 25 μ g/mL, 12.5 μ g/mL, 6.25 μ g/mL, 3.125 μ g/mL, arrange single dose contrast and blank, each process repeats 3 times simultaneously.In 2L drier, load 600g field soil, add the liquid 30mL configured in each drier, be sown into the weed seed of 50 vernalization.Processing time is 5 days, and spacious gas 4 days after opening capping, the bud measuring each process weeds is long, calculates control efficiency.
Control efficiency computing formula is:
Concentration EC in suppression is calculated again by method of least squares
50, calculate co-toxicity coefficient (CTC) according to the abundant method of Sun Yun.
As CTC < 80, then composition shows as antagonism, and as 80 < CTC < 120, then composition shows as summation action, as CTC > 120, then composition shows as synergistic effect.
Actual measurement toxicity index (ATI)=(standard agent EC
50/ reagent agent EC
50) × 100
In theoretical toxicity index (TTI)=A medicament toxicity index × mixture A percentage composition+B medicament toxicity index × mixture in the percentage composition of B
Co-toxicity coefficient (CTC)=[the theoretical toxicity index (TTI) of mixture actual measurement toxicity index (ATI)/mixture] × 100
Toxicity test the results are shown in Table 1.
Biologicall test example 2: allyl isothiocyanate and the composite Toxicity Determination to root-knot nematode of Methyl disulfide
Subjects: root-knot nematode (Meloidogyne incognita), the soil gathering generation nematode over the years is for subsequent use.
Test method: allyl isothiocyanate and Methyl disulfide are prepared into 5 series mass concentration by test proportioning, i.e. 50 μ g/mL, 25 μ g/mL, 12.5 μ g/mL, 6.25 μ g/mL, 3.125 μ g/mL, arrange single dose contrast and blank, each process repeats 3 times simultaneously.In 2L drier, load 600g field soil, add the liquid 30mL configured in each drier, the processing time is 5 days, and after opening capping, spacious gas 4 days, adopts the nematode population that centrifugal determination respectively processes, calculate control efficiency.
Control efficiency computing formula is:
Concentration EC in suppression is calculated again by method of least squares
50, calculate co-toxicity coefficient (CTC) according to the abundant method of Sun Yun.
As CTC < 80, then composition shows as antagonism, and as 80 < CTC < 120, then composition shows as summation action, as CTC > 120, then composition shows as synergistic effect.
Actual measurement toxicity index (ATI)=(standard agent EC
50/ reagent agent EC
50) × 100
In theoretical toxicity index (TTI)=A medicament toxicity index × mixture A percentage composition+B medicament toxicity index × mixture in the percentage composition of B
Co-toxicity coefficient (CTC)=[the theoretical toxicity index (TTI) of mixture actual measurement toxicity index (ATI)/mixture] × 100
Toxicity test the results are shown in Table 2.
Biologicall test example 3: allyl isothiocyanate and the composite Toxicity Determination to sickle-like bacteria of Methyl disulfide
Subjects: watermelon blight (Fusarium oxysporum f.sp.niveum.), the soil gathering generation fusarium wilt over the years is for subsequent use.
Test method: allyl isothiocyanate and Methyl disulfide are prepared into 5 series mass concentration by test proportioning, i.e. 50 μ g/mL, 25 μ g/mL, 12.5 μ g/mL, 6.25 μ g/mL, 3.125 μ g/mL, arrange single dose contrast and blank, each process repeats 3 times simultaneously.In 2L drier, load 600g field soil, add the liquid 30mL configured in each drier, the processing time is 5 days, and after opening capping, spacious gas 4 days, adopts the sickle-like bacteria quantity that plate dilution assay method respectively processes, calculate control efficiency.
Control efficiency computing formula is:
Concentration EC in suppression is calculated again by method of least squares
50, calculate co-toxicity coefficient (CTC) according to the abundant method of Sun Yun.
As CTC < 80, then composition shows as antagonism, and as 80 < CTC < 120, then composition shows as summation action, as CTC > 120, then composition shows as synergistic effect.
Actual measurement toxicity index (ATI)=(standard agent EC
50/ reagent agent EC
50) × 100
In theoretical toxicity index (TTI)=A medicament toxicity index × mixture A percentage composition+B medicament toxicity index × mixture in the percentage composition of B
Co-toxicity coefficient (CTC)=[the theoretical toxicity index (TTI) of mixture actual measurement toxicity index (ATI)/mixture] × 100
Toxicity test the results are shown in Table 3.
Table 1,2,3 is pointed out, allyl isothiocyanate (A) and Methyl disulfide (B) are have good synergistic effect between 1: 1 ~ 1: 100 at mass ratio, and its co-toxicity coefficient is all more than 120; Preferably mass ratio is 1: 10 ~ 1: 100, and better mass ratio is 1: 20 ~ 1: 100, and its co-toxicity coefficient is all more than 130.
The present composition can be prepared into missible oil, capsule by known method, or the mixed use of the direct bucket of former medicine.Be described with specific embodiment below, in formula, percentage is mass percent, and each composition all converts the quality into active ingredient.In present specification, single embodiment does not form the restriction of other embodiment.
Embodiment 1:30.3% allyl isothiocyanate Methyl disulfide missible oil
Allyl isothiocyanate 0.3%, Methyl disulfide 30%, Nongru-700 #10%, agriculture breast 2201#5%, methyl alcohol 10%, cyclohexanone 5%, dimethylbenzene complements to 100%.Active component, emulsifier and the auxiliary agent ratio in formula is added in mixing kettle successively, stirs, obtained 30.3% allyl isothiocyanate Methyl disulfide missible oil.According to same process obtained 20% allyl isothiocyanate missible oil, 20% Methyl disulfide missible oil; 35% metham-sodium aqua (Shenyang good harvest agricultural chemicals company produces), is purchased from market.
This embodiment is applied to control watermelon blight.Turn over wholely before watermelon is transplanted, after covering tightly with plastic foil, each medicament is pressed test dose soluble in water, to irrigate after the dilution of 7500kg/ hectare clear water.Processing time is 7 days, and need to take off film before transplanting and exit more than 4 days, each plot area is 30 square metres, and each process arranges 4 communities, using the community of clear water process as blank.Depending on blank incidence, investigate the morbidity strain number of each community, calculate control efficiency.
Allyl isothiocyanate and the composite rear synergistic effect of Methyl disulfide obviously, had both reduced the usage amount of active ingredient, had shown again the field efficacy being better than single dose.
Embodiment 2:32.4% allyl isothiocyanate Methyl disulfide missible oil
Allyl isothiocyanate 0.4%, Methyl disulfide 32%, Nongru-700 #10%, agriculture breast 2201#5%, Tween 80 5%, dimethylbenzene complements to 100%.Active component, emulsifier and the auxiliary agent ratio in formula is added in mixing kettle successively, stirs, obtained 32.4% allyl isothiocyanate Methyl disulfide missible oil.According to same process obtained 20% allyl isothiocyanate missible oil, 20% Methyl disulfide missible oil; 35% metham-sodium aqua (Shenyang good harvest agricultural chemicals company produces), is purchased from market.
This embodiment is applied to control capsicum epidemic disease.Turn over wholely before capsicum is transplanted, each medicament is pressed test dose soluble in water, adopt the dispenser of drip irrigation method, after dispenser, cover the mulch film of thick 0.05 millimeter.Processing time is 7 days, and need to take off film before transplanting and exit more than 4 days, each plot area is 50 square metres, and each process arranges 4 communities, using the community of clear water process as blank.Depending on blank incidence, investigate the morbidity strain number of each community, calculate control efficiency.
Allyl isothiocyanate and the composite rear synergistic effect of Methyl disulfide obviously, had both reduced the usage amount of active ingredient, had shown again the field efficacy being better than single dose.
Embodiment 3:30.5% allyl isothiocyanate Methyl disulfide missible oil
Allyl isothiocyanate 0.5%, Methyl disulfide 30%, Nongru-700 #10%, agriculture breast 2201#5%, methyl alcohol 10%, cyclohexanone 5%, dimethylbenzene complements to 100%.Active component, emulsifier and the auxiliary agent ratio in formula is added in mixing kettle successively, stirs, obtained 30.5% allyl isothiocyanate Methyl disulfide missible oil.According to same process obtained 20% allyl isothiocyanate missible oil, 20% Methyl disulfide missible oil; 35% metham-sodium aqua (Shenyang good harvest agricultural chemicals company produces) is purchased from market.
This embodiment is applied to control tomato root-knot eelworm.Turn over wholely before tomato is transplanted, after covering tightly with plastic foil, each medicament is pressed test dose soluble in water, to irrigate after the dilution of 7500kg/ hectare clear water.Processing time is 7 days, and need to take off film before transplanting and exit more than 4 days, each plot area is 30 square metres, and each process arranges 4 communities, using the community of clear water process as blank.Investigate the control efficiency of each process in Adult plant, the nematode situation that hierarchical statistics of uprooting respectively processes, calculate control efficiency.，
The grade scale that root-knot nematode adopts is:
0, root is without root knot;
1, fibrous root has a small amount of little root knot, root knot quantity is below 5;
3, most of root system is clean, and fibrous root has significantly visible root knot, root knot quantity is within 10;
5, main root has and infects on a small quantity, root knot quantity is below 5, and the root knot quantity on fibrous root is more than 10;
7, main root there is a large amount of root knot, all fibrous roots all have root knot;
9, all root systems have root knot, and plant above ground portion wilts.
Computational methods:
Allyl isothiocyanate and the composite rear synergistic effect of Methyl disulfide obviously, had both reduced the usage amount of active ingredient, had shown again the field efficacy being better than single dose.
Embodiment 4: be injected in soil after being mixed with the former medicine of 80% Methyl disulfide 62.5 grams by the former medicine of 90% allyl isothiocyanate 1.1 grams, the dispenser degree of depth is 10 centimetres, covers the mulch film of thick 0.05 millimeter after process.Medicament contrasts the former medicine of 90% allyl isothiocyanate 66.7 grams/m, the former medicine of 80% Methyl disulfide 75 grams/m, 35% metham-sodium aqua by amount of formulation 171.4 grams/m all by the process of identical test method, and arranges blank.Processing time is 7 days, and need to take off film before transplanting and exit more than 4 days, each plot area is 30 square metres, each process repetition 4 communities.
This embodiment is applied to control notoginseng root rot, long-term cropping after soil treatment.Depending on blank incidence, investigate the morbidity strain number of each community, calculate control efficiency.
Allyl isothiocyanate and the composite rear synergistic effect of Methyl disulfide obviously, had both reduced the usage amount of active ingredient, had shown again the field efficacy being better than single dose.
Embodiment 5: be injected in soil after being mixed with the former medicine of 80% Methyl disulfide 50 grams by the former medicine of 90% allyl isothiocyanate 1.1 grams, the dispenser degree of depth is 10 centimetres, covers the mulch film of thick 0.05 millimeter after process.Medicament contrasts the former medicine of 90% allyl isothiocyanate 55.6 grams/m, the former medicine of 80% Methyl disulfide 62.5 grams/m, 35% metham-sodium aqua by amount of formulation 142.9 grams/m all by the process of identical test method, and arranges blank.Processing time is 7 days, and need to take off film before transplanting and exit more than 4 days, each plot area is 30 square metres, each process repetition 4 communities.
This embodiment is applied to control okra root-knot nematode, investigates the control efficiency of each process, the nematode situation that hierarchical statistics of uprooting respectively processes, calculate control efficiency in Adult plant.，
The grade scale that root-knot nematode adopts is:
0, root is without root knot;
1, fibrous root has a small amount of little root knot, root knot quantity is below 5;
3, most of root system is clean, and fibrous root has significantly visible root knot, root knot quantity is within 10;
5, main root has and infects on a small quantity; Root knot quantity is below 5, and the root knot quantity on fibrous root is more than 10:
7, main root there is a large amount of root knot, all fibrous roots all have root knot;
9, all root systems have root knot, and plant above ground portion wilts.
Computational methods:
Allyl isothiocyanate and the composite rear synergistic effect of Methyl disulfide obviously, had both reduced the usage amount of active ingredient, had shown again the field efficacy being better than single dose.
Embodiment 6: be injected in soil after being mixed with the former medicine of 80% Methyl disulfide 37.5 grams by the former medicine of 90% allyl isothiocyanate 1.1 grams, the dispenser degree of depth is 10 centimetres, covers the mulch film of thick 0.05 millimeter after process.Medicament contrasts the former medicine of 90% allyl isothiocyanate 44.4 grams/m, the former medicine of 80% Methyl disulfide 50 grams/m, 35% metham-sodium aqua by amount of formulation 114.3 grams/m all by the process of identical test method, and arranges blank.Processing time is 7 days, and need to take off film before transplanting and exit more than 4 days, each plot area is 30 square metres, each process repetition 4 communities.
This embodiment is applied to control strawberry Verticillium wilt, transplants crop after soil treatment.Depending on blank incidence, investigate the morbidity strain number of each community, calculate control efficiency.
Allyl isothiocyanate and the composite rear synergistic effect of Methyl disulfide obviously, had both reduced the usage amount of active ingredient, had shown again the field efficacy being better than single dose.
Embodiment 7:42% allyl isothiocyanate Methyl disulfide microcapsule formulations
Allyl isothiocyanate 2%, Methyl disulfide 40%, gelatin 30%, glycerine 5%, starch 2.5%, supply 100% with Lauxite.Gelatin, glycerine and starch are dissolved in urea-formaldehyde resin solution, add active component and carry out high speed shear, after strong agitation, be polymerized encystation, by 42% allyl isothiocyanate Methyl disulfide microcapsule formulations can be obtained after dry solidification.By above-mentioned technique obtained 20% allyl isothiocyanate microcapsule formulations, 20% Methyl disulfide microcapsule formulations.98% dazomet fine granule is purchased from market, is produced by Nantong Shi Zhuan Chemical Co., Ltd..
This embodiment is applied to control tobacco damping off, evenly punches, put into the microcapsules of each process, after earthing, water overlay film in soil.Processing time is 7 days, and need to take off film before transplanting and exit more than 4 days, each plot area is 30 square metres, each process repetition 4 communities.Depending on blank incidence, investigate the morbidity strain number of each community, calculate control efficiency.
Allyl isothiocyanate and the composite rear synergistic effect of Methyl disulfide obviously, had both reduced the usage amount of active ingredient, had shown again the field efficacy being better than single dose.
Embodiment 8:66% allyl isothiocyanate Methyl disulfide microcapsule formulations
Allyl isothiocyanate 6%, Methyl disulfide 60%, gelatin 30%, glycerine 5%, starch 2.5%, supply 100% with Lauxite.Gelatin, glycerine and starch are dissolved in urea-formaldehyde resin solution, add active component and carry out high speed shear, after strong agitation, be polymerized encystation, by 66% allyl isothiocyanate Methyl disulfide microcapsule formulations can be obtained after dry solidification.By above-mentioned technique obtained 20% allyl isothiocyanate microcapsule formulations, 20% Methyl disulfide microcapsule formulations.98% dazomet fine granule is purchased from market, is produced by Nantong Shi Zhuan Chemical Co., Ltd..
This embodiment is applied to control apple violet root rot, evenly punches at the soil of apple root, puts into the microcapsules of each process, until earthing, waters after pouring and covers wet straw.Processing time is 7 days, needs venting more than 4 days before transplanting, and 30, each community apple tree, each process repeats 4 communities.Depending on blank incidence, investigate the morbidity strain number of each community, calculate control efficiency.
Allyl isothiocyanate and the composite rear synergistic effect of Methyl disulfide obviously, had both reduced the usage amount of active ingredient, had shown again the field efficacy being better than single dose.
Embodiment 9:40% allyl isothiocyanate Methyl disulfide microcapsule formulations
Allyl isothiocyanate 20%, Methyl disulfide 20%, gelatin 30%, glycerine 5%, starch 2.5%, supply 100% with Lauxite.Gelatin, glycerine and starch are dissolved in urea-formaldehyde resin solution, add active component and carry out high speed shear, after strong agitation, be polymerized encystation, by 40% allyl isothiocyanate Methyl disulfide microcapsule formulations can be obtained after dry solidification.By above-mentioned technique obtained 20% allyl isothiocyanate microcapsule formulations, 20% Methyl disulfide microcapsule formulations.98% dazomet fine granule is purchased from market, is produced by Nantong Shi Zhuan Chemical Co., Ltd..
This embodiment is applied to control rose root rot, evenly punches, put into the microcapsules of each process in field soil, until earthing, waters covering with plastic film after pouring.Processing time is 7 days, needs venting more than 4 days before transplanting, and loaded in flowerpot by the soil after process, every flowerpot one strain rose, each process repeats 60 strain roses, arranges the blank of clear water process.Depending on blank incidence, investigate the morbidity strain number of each community, calculate control efficiency.
Allyl isothiocyanate and the composite rear synergistic effect of Methyl disulfide obviously, had both reduced the usage amount of active ingredient, had shown again the field efficacy being better than single dose.
Claims (5)
1., for a composition for soil-fumigating, active ingredient is allyl isothiocyanate (A) and Methyl disulfide (B), and wherein the mass ratio of effective constituents A and B is 1: 1 ~ 1: 100.
2. composition according to claim 1, is characterized in that the mass ratio of effective constituents A and B in composition is 1: 10 ~ 1: 100.
3. composition according to claim 1, is characterized in that the mass ratio of effective constituents A and B in composition is 1: 20 ~ 1: 100.
4. composition according to claim 1, is characterized in that the purposes of composition for soil-fumigating.
5. composition according to claim 1, is characterized in that the soil-fumigating of composition for melon dish, medicinal material, strawberry, tobacco, fruit tree, nursery.
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| CN104920433A (en) * | 2015-06-08 | 2015-09-23 | 柳州市天姿园艺有限公司 | Composition used for controlling cymbidium kanran makino anthracnose |
| CN104920427A (en) * | 2015-06-08 | 2015-09-23 | 柳州市天姿园艺有限公司 | Composition used for controlling cymbidium kanran makinosoft rot |
| CN104920432A (en) * | 2015-06-08 | 2015-09-23 | 柳州市天姿园艺有限公司 | Composition used for controlling bacillus cypriped |
| CN104920431A (en) * | 2015-06-08 | 2015-09-23 | 柳州市天姿园艺有限公司 | Composition for controlling soft rot of cymbidium faberi rolfe |
| CN104920437A (en) * | 2015-06-09 | 2015-09-23 | 柳州市天姿园艺有限公司 | Composition for controlling leaf spot disease of cymbidium kanran makino |
| CN104938513A (en) * | 2015-06-09 | 2015-09-30 | 柳州市天姿园艺有限公司 | Composition for preventing and controlling soft rot disease of cymbidium sinensis |
| CN104920436A (en) * | 2015-06-09 | 2015-09-23 | 柳州市天姿园艺有限公司 | Composition for controlling leaf spot disease of vanda sanderiana |
| CN110786193A (en) * | 2019-11-01 | 2020-02-14 | 山东省农业科学院植物保护研究所 | Method for preventing and treating soil-borne diseases by cooperation of biological fumigation and chemical fumigation |
| CN110973150A (en) * | 2019-12-30 | 2020-04-10 | 江苏腾龙生物药业有限公司 | Horseradish-containing soil fumigant and using method thereof |
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