CN117814226A - Composition for improving safety of crops after application of fluazinam - Google Patents
Composition for improving safety of crops after application of fluazinam Download PDFInfo
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- CN117814226A CN117814226A CN202311854730.3A CN202311854730A CN117814226A CN 117814226 A CN117814226 A CN 117814226A CN 202311854730 A CN202311854730 A CN 202311854730A CN 117814226 A CN117814226 A CN 117814226A
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- fluazinam
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- crops
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- UZCGKGPEKUCDTF-UHFFFAOYSA-N fluazinam Chemical compound [O-][N+](=O)C1=CC(C(F)(F)F)=C(Cl)C([N+]([O-])=O)=C1NC1=NC=C(C(F)(F)F)C=C1Cl UZCGKGPEKUCDTF-UHFFFAOYSA-N 0.000 title claims abstract description 45
- 239000000203 mixture Substances 0.000 title claims abstract description 45
- 239000005780 Fluazinam Substances 0.000 title claims abstract description 44
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 26
- 238000000034 method Methods 0.000 claims abstract description 25
- 238000005507 spraying Methods 0.000 claims abstract description 16
- PRPINYUDVPFIRX-UHFFFAOYSA-N 1-naphthaleneacetic acid Chemical compound C1=CC=C2C(CC(=O)O)=CC=CC2=C1 PRPINYUDVPFIRX-UHFFFAOYSA-N 0.000 claims description 20
- 241000209140 Triticum Species 0.000 claims description 18
- 235000021307 Triticum Nutrition 0.000 claims description 18
- 150000001413 amino acids Chemical class 0.000 claims description 16
- QJZYHAIUNVAGQP-UHFFFAOYSA-N 3-nitrobicyclo[2.2.1]hept-5-ene-2,3-dicarboxylic acid Chemical compound C1C2C=CC1C(C(=O)O)C2(C(O)=O)[N+]([O-])=O QJZYHAIUNVAGQP-UHFFFAOYSA-N 0.000 claims description 14
- 239000004021 humic acid Substances 0.000 claims description 14
- 238000009331 sowing Methods 0.000 claims description 11
- 241000196324 Embryophyta Species 0.000 claims description 9
- 235000015097 nutrients Nutrition 0.000 claims description 9
- 238000003973 irrigation Methods 0.000 claims description 8
- 230000002262 irrigation Effects 0.000 claims description 8
- 240000008042 Zea mays Species 0.000 claims description 6
- 235000005824 Zea mays ssp. parviglumis Nutrition 0.000 claims description 6
- 235000002017 Zea mays subsp mays Nutrition 0.000 claims description 6
- 235000005822 corn Nutrition 0.000 claims description 6
- 235000002566 Capsicum Nutrition 0.000 claims description 5
- 240000008574 Capsicum frutescens Species 0.000 claims description 5
- 244000068988 Glycine max Species 0.000 claims description 5
- 235000010469 Glycine max Nutrition 0.000 claims description 5
- 239000001390 capsicum minimum Substances 0.000 claims description 5
- 235000007688 Lycopersicon esculentum Nutrition 0.000 claims description 3
- 240000003768 Solanum lycopersicum Species 0.000 claims description 3
- 235000017060 Arachis glabrata Nutrition 0.000 claims description 2
- 244000105624 Arachis hypogaea Species 0.000 claims description 2
- 235000010777 Arachis hypogaea Nutrition 0.000 claims description 2
- 235000018262 Arachis monticola Nutrition 0.000 claims description 2
- 235000000832 Ayote Nutrition 0.000 claims description 2
- 244000241257 Cucumis melo Species 0.000 claims description 2
- 235000015510 Cucumis melo subsp melo Nutrition 0.000 claims description 2
- 240000004244 Cucurbita moschata Species 0.000 claims description 2
- 235000009854 Cucurbita moschata Nutrition 0.000 claims description 2
- 235000009804 Cucurbita pepo subsp pepo Nutrition 0.000 claims description 2
- 240000007594 Oryza sativa Species 0.000 claims description 2
- 235000007164 Oryza sativa Nutrition 0.000 claims description 2
- 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
- 235000020232 peanut Nutrition 0.000 claims description 2
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- 231100000674 Phytotoxicity Toxicity 0.000 abstract description 27
- 230000000694 effects Effects 0.000 abstract description 14
- 239000003814 drug Substances 0.000 abstract description 11
- 239000000575 pesticide Substances 0.000 abstract description 11
- 239000002689 soil Substances 0.000 description 41
- 238000012360 testing method Methods 0.000 description 27
- 238000005286 illumination Methods 0.000 description 10
- 230000002363 herbicidal effect Effects 0.000 description 9
- 239000004009 herbicide Substances 0.000 description 9
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- 230000006378 damage Effects 0.000 description 7
- 238000010899 nucleation Methods 0.000 description 6
- 230000002265 prevention Effects 0.000 description 6
- 238000010998 test method Methods 0.000 description 6
- 238000011179 visual inspection Methods 0.000 description 5
- 239000005558 Fluroxypyr Substances 0.000 description 4
- 239000002253 acid Substances 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 4
- MEFQWPUMEMWTJP-UHFFFAOYSA-N fluroxypyr Chemical compound NC1=C(Cl)C(F)=NC(OCC(O)=O)=C1Cl MEFQWPUMEMWTJP-UHFFFAOYSA-N 0.000 description 4
- 230000035784 germination Effects 0.000 description 4
- 238000004382 potting Methods 0.000 description 4
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- 239000007788 liquid Substances 0.000 description 3
- 239000008155 medical solution Substances 0.000 description 3
- 150000007524 organic acids Chemical class 0.000 description 3
- 230000003449 preventive effect Effects 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 239000007921 spray Substances 0.000 description 3
- KJCVRFUGPWSIIH-UHFFFAOYSA-N 1-naphthol Chemical compound C1=CC=C2C(O)=CC=CC2=C1 KJCVRFUGPWSIIH-UHFFFAOYSA-N 0.000 description 2
- VXIXUWQIVKSKSA-UHFFFAOYSA-N 4-hydroxycoumarin Chemical compound C1=CC=CC2=C1OC(=O)C=C2O VXIXUWQIVKSKSA-UHFFFAOYSA-N 0.000 description 2
- 235000011331 Brassica Nutrition 0.000 description 2
- 241000219198 Brassica Species 0.000 description 2
- IXVMHGVQKLDRKH-VRESXRICSA-N Brassinolide Natural products O=C1OC[C@@H]2[C@@H]3[C@@](C)([C@H]([C@@H]([C@@H](O)[C@H](O)[C@H](C(C)C)C)C)CC3)CC[C@@H]2[C@]2(C)[C@@H]1C[C@H](O)[C@H](O)C2 IXVMHGVQKLDRKH-VRESXRICSA-N 0.000 description 2
- 239000005782 Fluopicolide Substances 0.000 description 2
- YWBVHLJPRPCRSD-UHFFFAOYSA-N Fluridone Chemical compound O=C1C(C=2C=C(C=CC=2)C(F)(F)F)=CN(C)C=C1C1=CC=CC=C1 YWBVHLJPRPCRSD-UHFFFAOYSA-N 0.000 description 2
- 239000005590 Oxyfluorfen Substances 0.000 description 2
- OQMBBFQZGJFLBU-UHFFFAOYSA-N Oxyfluorfen Chemical compound C1=C([N+]([O-])=O)C(OCC)=CC(OC=2C(=CC(=CC=2)C(F)(F)F)Cl)=C1 OQMBBFQZGJFLBU-UHFFFAOYSA-N 0.000 description 2
- 238000012271 agricultural production Methods 0.000 description 2
- 125000003277 amino group Chemical group 0.000 description 2
- IXVMHGVQKLDRKH-KNBKMWSGSA-N brassinolide Chemical compound C1OC(=O)[C@H]2C[C@H](O)[C@H](O)C[C@]2(C)[C@H]2CC[C@]3(C)[C@@H]([C@H](C)[C@@H](O)[C@H](O)[C@@H](C)C(C)C)CC[C@H]3[C@@H]21 IXVMHGVQKLDRKH-KNBKMWSGSA-N 0.000 description 2
- 235000021466 carotenoid Nutrition 0.000 description 2
- 150000001747 carotenoids Chemical class 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 239000003153 chemical reaction reagent Substances 0.000 description 2
- 229930002875 chlorophyll Natural products 0.000 description 2
- 235000019804 chlorophyll Nutrition 0.000 description 2
- ATNHDLDRLWWWCB-AENOIHSZSA-M chlorophyll a Chemical compound C1([C@@H](C(=O)OC)C(=O)C2=C3C)=C2N2C3=CC(C(CC)=C3C)=[N+]4C3=CC3=C(C=C)C(C)=C5N3[Mg-2]42[N+]2=C1[C@@H](CCC(=O)OC\C=C(/C)CCC[C@H](C)CCC[C@H](C)CCCC(C)C)[C@H](C)C2=C5 ATNHDLDRLWWWCB-AENOIHSZSA-M 0.000 description 2
- 238000012258 culturing Methods 0.000 description 2
- 238000006731 degradation reaction Methods 0.000 description 2
- GBOYJIHYACSLGN-UHFFFAOYSA-N fluopicolide Chemical compound ClC1=CC(C(F)(F)F)=CN=C1CNC(=O)C1=C(Cl)C=CC=C1Cl GBOYJIHYACSLGN-UHFFFAOYSA-N 0.000 description 2
- 239000003854 herbicide residue Substances 0.000 description 2
- SEOVTRFCIGRIMH-UHFFFAOYSA-N indole-3-acetic acid Chemical group C1=CC=C2C(CC(=O)O)=CNC2=C1 SEOVTRFCIGRIMH-UHFFFAOYSA-N 0.000 description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 description 2
- 239000011707 mineral Substances 0.000 description 2
- 239000011259 mixed solution Substances 0.000 description 2
- -1 nicosulfuron terbutazine compound Chemical class 0.000 description 2
- 235000016709 nutrition Nutrition 0.000 description 2
- 235000005985 organic acids Nutrition 0.000 description 2
- 230000029553 photosynthesis Effects 0.000 description 2
- 238000010672 photosynthesis Methods 0.000 description 2
- 229920006395 saturated elastomer Polymers 0.000 description 2
- 238000009738 saturating Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 240000006162 Chenopodium quinoa Species 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- 241000219104 Cucurbitaceae Species 0.000 description 1
- 101710088194 Dehydrogenase Proteins 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- 239000005980 Gibberellic acid Substances 0.000 description 1
- UPYKUZBSLRQECL-UKMVMLAPSA-N Lycopene Natural products CC(=C/C=C/C=C(C)/C=C/C=C(C)/C=C/C1C(=C)CCCC1(C)C)C=CC=C(/C)C=CC2C(=C)CCCC2(C)C UPYKUZBSLRQECL-UKMVMLAPSA-N 0.000 description 1
- JEVVKJMRZMXFBT-XWDZUXABSA-N Lycophyll Natural products OC/C(=C/CC/C(=C\C=C\C(=C/C=C/C(=C\C=C\C=C(/C=C/C=C(\C=C\C=C(/CC/C=C(/CO)\C)\C)/C)\C)/C)\C)/C)/C JEVVKJMRZMXFBT-XWDZUXABSA-N 0.000 description 1
- 239000005586 Nicosulfuron Substances 0.000 description 1
- ONIBWKKTOPOVIA-UHFFFAOYSA-N Proline Natural products OC(=O)C1CCCN1 ONIBWKKTOPOVIA-UHFFFAOYSA-N 0.000 description 1
- 240000009022 Smilax rotundifolia Species 0.000 description 1
- 235000003205 Smilax rotundifolia Nutrition 0.000 description 1
- 235000002594 Solanum nigrum Nutrition 0.000 description 1
- 240000002307 Solanum ptychanthum Species 0.000 description 1
- 229940100389 Sulfonylurea Drugs 0.000 description 1
- 241000779819 Syncarpia glomulifera Species 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 239000000729 antidote Substances 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 125000004432 carbon atom Chemical group C* 0.000 description 1
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 1
- 150000001735 carboxylic acids Chemical group 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- ZIIXGFGLSRAQBK-UHFFFAOYSA-N ethene;1h-indole Chemical group C=C.C1=CC=C2NC=CC2=C1 ZIIXGFGLSRAQBK-UHFFFAOYSA-N 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000000855 fermentation Methods 0.000 description 1
- 230000004151 fermentation Effects 0.000 description 1
- IXORZMNAPKEEDV-UHFFFAOYSA-N gibberellic acid GA3 Natural products OC(=O)C1C2(C3)CC(=C)C3(O)CCC2C2(C=CC3O)C1C3(C)C(=O)O2 IXORZMNAPKEEDV-UHFFFAOYSA-N 0.000 description 1
- IXORZMNAPKEEDV-OBDJNFEBSA-N gibberellin A3 Chemical compound C([C@@]1(O)C(=C)C[C@@]2(C1)[C@H]1C(O)=O)C[C@H]2[C@]2(C=C[C@@H]3O)[C@H]1[C@]3(C)C(=O)O2 IXORZMNAPKEEDV-OBDJNFEBSA-N 0.000 description 1
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 1
- 239000003617 indole-3-acetic acid Substances 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 239000003621 irrigation water Substances 0.000 description 1
- OAIJSZIZWZSQBC-GYZMGTAESA-N lycopene Chemical compound CC(C)=CCC\C(C)=C\C=C\C(\C)=C\C=C\C(\C)=C\C=C\C=C(/C)\C=C\C=C(/C)\C=C\C=C(/C)CCC=C(C)C OAIJSZIZWZSQBC-GYZMGTAESA-N 0.000 description 1
- 229960004999 lycopene Drugs 0.000 description 1
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- 238000005259 measurement Methods 0.000 description 1
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- DGVVJWXRCWCCOD-UHFFFAOYSA-N naphthalene;hydrate Chemical compound O.C1=CC=CC2=CC=CC=C21 DGVVJWXRCWCCOD-UHFFFAOYSA-N 0.000 description 1
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- 238000007539 photo-oxidation reaction Methods 0.000 description 1
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- YROXIXLRRCOBKF-UHFFFAOYSA-N sulfonylurea Chemical class OC(=N)N=S(=O)=O YROXIXLRRCOBKF-UHFFFAOYSA-N 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 208000024891 symptom Diseases 0.000 description 1
- 230000009885 systemic effect Effects 0.000 description 1
- ZCIHMQAPACOQHT-ZGMPDRQDSA-N trans-isorenieratene Natural products CC(=C/C=C/C=C(C)/C=C/C=C(C)/C=C/c1c(C)ccc(C)c1C)C=CC=C(/C)C=Cc2c(C)ccc(C)c2C ZCIHMQAPACOQHT-ZGMPDRQDSA-N 0.000 description 1
- 229940036248 turpentine Drugs 0.000 description 1
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- 230000002087 whitening effect Effects 0.000 description 1
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- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
The invention belongs to the field of pesticides, and in particular relates to a composition for improving the safety of crops after application of fluazinam and an application method of the composition. The composition provided by the invention can obviously improve the safety of crops after the application of the fluazinam, and can achieve a good improvement effect even on plots with high fluazinam residues. The composition can be used for various crops, and has wide application range. Besides, the composition is suitable for application scenes of the fluazinam after application, and the application scenes of the fluazinam are changed to planting or the crop is planted in the reverse stubble to be sensitive to the medicament, can prevent the phytotoxicity by dripping with water after the crop is planted, can also relieve the phytotoxicity by adopting stem and leaf spraying after the crop is planted, and has no strict requirement on water consumption.
Description
Technical Field
The invention belongs to the field of pesticides, and particularly relates to a composition for improving the safety of crops after application of fluazinam and an application method of the composition.
Background
The fluopicolide (Fluridone), the chemical name of which is 1-methyl-3-phenyl-5- (3-trifluoromethyl phenyl) -4 (1H) -pyridone, is a novel excellent selective and systemic conduction type herbicide for cotton fields, can effectively prevent and kill various broadleaf weeds such as black nightshade, quinoa, glabrous greenbrier and the like, can be absorbed by roots of plants and transmitted to leaves, and has the action mechanism that lycopene dehydrogenase is inhibited to reduce carotenoid biosynthesis in the plants, so that chlorophyll loss is caused, and finally photosynthesis is inhibited to cause death of the plants.
Research at home and abroad shows that the prolonged residual period of the fluazinam in soil can produce phytotoxicity to aftercrop sensitive crops such as corn, wheat, soybean, tomato, capsicum and the like, so that crop chlorophyll can produce photo-bleached seedlings due to photo-oxidation under the condition of lack of carotenoid, and can produce whitening symptoms, thereby affecting the crop yield to a certain extent.
With respect to solving the influence of herbicide residue on succeeding crops, CN100405907C discloses a herbicide safety additive which is prepared from 0.01-5% by weight of 4-hydroxycoumarin and 95-99.99% by weight of turpentine, and can accelerate the degradation of the herbicide when being mixed with the herbicide, thereby solving the influence of the herbicide residue on the succeeding crops. CN100479660C discloses a nicosulfuron terbutazine compound corn field herbicide, which is a method for reducing the phytotoxicity of succeeding crops by compounding a component ter Ding Jinlai with higher safety. Li Binghua et al report a measure for controlling the damage of long residual sulfonylurea herbicide residues to succeeding crops in terms of reducing the herbicide dosage, accelerating the herbicide degradation, detoxifying sensitive crops, etc. (university of Yunnan agriculture, 2005, (06): 87-91.).
No method or product capable of improving the safety of crops after the application of the fluazinam is disclosed at present. Therefore, finding a method or product for improving the safety of crops after the application of the fluazinam has important practical significance for solving the problem of successive cropping rotation in agricultural production.
Disclosure of Invention
The invention aims to provide a composition for improving the safety of crops after the application of the fluazinam, and another aim of the invention is to provide an application method of the composition.
According to the above object, the present invention provides the following embodiments:
a composition for improving the safety of crops after the application of the fluazinam, which comprises naphthalene acetic acid and water.
Preferably, the composition further comprises a plant nutrient, wherein the plant nutrient is at least one of humic acid and amino acid.
Preferably, the composition comprises naphthalene acetic acid, humic acid and water.
Preferably, the composition comprises naphthalene acetic acid, an amino acid and water.
Preferably, the effective amount of naphthalene acetic acid is 375-2250g ai/ha.
Preferably, the effective amount of humic acid is 1000-2000g ai/ha, more preferably 1500g ai/ha.
Preferably, the effective amount of the amino acid is 75-225g ai/ha.
Further, the present invention provides a method of applying the above composition, the method comprising:
(a) Applying the composition after sowing, before emergence or after transplanting; or alternatively
(b) After the crops are sown and the seedlings emerge, the composition is applied;
wherein the crop is planted in a farm field with a residue or application of fluazinam.
Preferably, the composition of the application method (a) is applied by drip irrigation; the composition in the application method (b) is applied by adopting a stem and leaf spraying mode.
Preferably, the number of stem and leaf sprays in the application method (b) is at least 1, more preferably at least 3.
Preferably, the crop in the application method is selected from gramineous crop, leguminous crop, cucurbitaceae crop or solanaceous crop; further preferred are corn, wheat, rice, soybean, peanut, melon, pumpkin, tomato or capsicum; more preferably corn, wheat, soybean or capsicum.
The water consumption is not strictly required in the composition, wherein the composition can be drip-irrigated together with seedling water or rooting water in the application method (a), and the drip-irrigation water is the maximum water-holding capacity of 5cm of the soil surface layer; the water consumption in the application method (b) is different according to the application apparatus, for example, the application apparatus commonly used in the field comprises a plant protection unmanned aerial vehicle and a tractor, and when the plant protection unmanned aerial vehicle is used, the water consumption is 18-23L/ha each time; when the tractor is used, the water consumption is 400-600L/ha each time.
Compared with the prior art, the invention has the following beneficial effects:
the invention provides a composition for improving the safety of crops after the application of the fluazinam for the first time and an application method of the composition, wherein the composition can obviously improve the safety of crops after the application of the fluazinam, and can achieve a good improvement effect even on plots with high residue of the fluazinam. The method can be used for various crops and has wide application range. Besides, the composition is suitable for application scenes of the fluazinam after application, and the application scenes of the fluazinam are changed to planting or the crop is planted in the reverse stubble to be sensitive to the medicament, can prevent the phytotoxicity by dripping with water after the crop is planted, can also relieve the phytotoxicity by adopting stem and leaf spraying after the crop is planted, and has no strict requirement on water consumption.
Detailed Description
The technical scheme of the present invention will be clearly and completely described in the following examples. It will be apparent that the described embodiments are some, but not all, embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The test agents used in the examples and their sources are shown in Table 1 below, and the agents not listed in Table 1 are all commercially available.
TABLE 1
Annotation:
the effective components of 0.136% of red-indole-ethylene-brassica WP and 0.136% of 28-high-surface brassica red-indole-ethylene WP are gibberellic acid, indole-ethylene is indoleacetic acid, brassica is brassinolide, and 28-high-surface brassinolide.
Tefumei is a high energy amino acid, which is a compound amino acid with proline as the main component. The amino acid is an organic compound containing a basic amino group and an acidic carboxyl group, and the hydrogen atom on the carbon atom of the carboxylic acid is substituted with an amino group.
Humic acid is a mixture of natural organic macromolecular compounds, is widely existing in nature, has the largest proportion in soil, is a heterogeneous complex mixture of physicochemical characteristics, has a polydisperse molecular weight, and consists of natural organic polyelectrolyte with high molecular weight, yellow to black color, amorphous, gelatinous, fatty and aromatic properties, and cannot be represented by a single chemical structural formula. From the source, humic acid mainly comes from two types of mineral sources and biological fermentation in production, and the invention uses the mineral source humic acid.
The examples are all indoor tests, and the residual quantity of the fluazinam in the soil when the next crop is planted after the fluazinam is applied in agricultural production is estimated according to the half-life period of the fluazinam in the soil (about 90 days), wherein the residual quantity of the fluazinam is far lower than 144g ai/ha, and 144g ai/ha is selected as the simulated residual quantity of the fluazinam in the examples). Wherein, in examples 1-3, the fluroxypyr soil was prepared manually, and the pesticide injury prevention and relief test was performed after the crop was sown.
Example 4 after crop seeding, fluazinam was applied simultaneously with the pesticide to conduct a pesticide damage prevention test.
Example 1 different organic acids test for preventing wheat phytotoxicity by fluazinam
By adopting a manual climate chamber potting test method, firstly preparing the medicine soil (the residual quantity of the fluazinam is 144g ai/ha) for planting the next crop after 288g ai/ha of recommended dosage of the fluazinam is applied, and then carrying out test treatment along with drip irrigation after planting the crop. The specific operation is as follows: firstly, preparing medicinal soil (the soil for test is the mixture of sandy soil and nutrient medium according to the volume ratio of 1:2, filling the soil with a tray, the soil thickness is about 3-5cm, pouring the fluazinam medical solution into the soil surface, fully and uniformly mixing), standing for 24 hours, taking a flowerpot with the caliber of 6.5cm and the depth of 5.5cm, and filling the soil to 3/4 height. The crop seeds are sowed into the flowerpot, 4-5 seeds are ensured for each crop, and the germination rate of the seeds is more than 90%. After sowing, preparing a solution of a reagent (different organic acids) for testing and solving phytotoxicity, adding a liquid medicine at the bottom to enable soil to be saturated by water absorption, then placing the solution into a climatic chamber for culture and growth, keeping the water content of the soil at 100%, keeping the temperature in the climatic chamber between 20 ℃ and 30 ℃, and keeping the air humidity above 60%, wherein the illumination intensity is 1.8 thousands Lux (the illumination duration L: D is 12:12).
After the crops are planted, periodically observing the phytotoxicity condition of each treated crop, and visually observing the crop inhibition rate in percentage, wherein the visual inspection method refers to the part 2 of the pesticide-crop safety evaluation criterion: the investigation method of the damage degree of the 5 th part crop in the crop safety measurement test method (NY/T1965.2-2010) of the photosynthesis inhibition type herbicide calculates the percent of the prevention/alleviation effect of the phytotoxicity according to a formula.
The visual inspection method of the crop inhibition rate is as follows:
safety, no phytotoxicity: crop inhibition was 0;
slight phytotoxicity: the crop inhibition rate is 1-10%;
moderate phytotoxicity: the crop inhibition rate is 11-30%;
heavier phytotoxicity: the crop inhibition rate is 31% -50%;
serious phytotoxicity: the crop inhibition rate is more than 50 percent.
Prevention/relief effect calculation formula:
the visual inspection results of the preventive tests are shown in Table 2 below.
TABLE 2
The test result shows that in the implementation treatment of 7 organic acid after sowing and before seedling following drip irrigation, the effect of the naphthalene acetic acid 2250gai/ha on preventing the pesticide damage of the fluopicolide to the wheat reaches 100 percent, which is obviously superior to the treatment of other medicaments.
Example 2 test of Naphthol with different nutritional compositions for prevention of wheat phytotoxicity by fluazinam
In the embodiment, the test treatment is implemented by water drip irrigation after seeding and before seeding.
By adopting a manual climate chamber potting test method, firstly preparing the medicine soil (the residual quantity of the fluazinam is 144g ai/ha) for planting the next crop after 288g ai/ha of recommended dosage of the fluazinam is applied, and then carrying out test treatment along with drip irrigation after planting the crop. The specific operation is as follows: firstly, preparing medicinal soil (the soil for test is the mixture of sandy soil and nutrient medium according to the volume ratio of 1:2, filling the soil with a tray, the soil thickness is about 3-5cm, pouring the fluazinam medical solution into the soil surface, fully and uniformly mixing), standing for 24 hours, taking a flowerpot with the caliber of 6.5cm and the depth of 5.5cm, and filling the soil to 3/4 height. The crop seeds are sowed into the flowerpot, 4-5 seeds are ensured for each crop, and the germination rate of the seeds is more than 90%. After sowing, preparing a mixed solution of a reagent for testing and solving phytotoxicity (wherein the treatment of naphthylacetic acid and humic acid or amino acid adopts barrel mixing), saturating the soil by adding a liquid medicine at the bottom, placing the saturated soil in a climatic chamber for culture and growth, keeping the water content of the soil at 100%, keeping the temperature in the climatic chamber between 20 ℃ and 30 ℃, keeping the air humidity above 60%, and keeping the illumination intensity at 1.8 kilo Lux (the illumination duration L: D is 12:12).
The phytotoxicity test method was the same as in example 1.
The visual inspection results of the preventive tests are shown in Table 3 below.
TABLE 3 Table 3
Test results show that the pesticide injury of the fluroxypyr to the wheat can be prevented by applying the naphalic acid 375g ai/ha with water drops after the sowing of the naphalic acid 375g ai/ha and the water drops before the sowing of the naphalic acid, and the independent use of the humic acid 1500g ai/ha and the amino acid 75g ai/ha has a certain effect of preventing the pesticide injury of the fluroxypyr to the wheat; the effect of preventing the oxyfluorfen from phytotoxicity to wheat by combining the naphthalene acetic acid and the humic acid or combining the naphthalene acetic acid and the amino acid is improved to a certain extent. The prevention effect of the combination of the naphthylacetic acid and the naphthylacetic acid plus the nutrient is better than that of the combination of the antidote medium-day-stream-green and (5) protecting the green.
Example 3 Naphthol and different nutritional compositions Mirabilitum Crystalline test for alleviating wheat phytotoxicity
By adopting a manual climate chamber potting test, preparing medicine soil (the residual quantity of the fluazinam is 144g ai/ha) for planting the next crop after 288g ai/ha recommended dosage of the fluazinam is applied, and then carrying out stem and leaf spraying treatment after sowing the crop. The specific operation is as follows: firstly, preparing medicinal soil (the soil for test is the mixture of sandy soil and nutrient medium according to the volume ratio of 1:2, filling the soil with a tray, the soil thickness is about 3-5cm, pouring the fluazinam medical solution into the soil surface, fully and uniformly mixing), standing for 24 hours, taking a flowerpot with the caliber of 6.5cm and the depth of 5.5cm, and filling the soil to 3/4 height. The crop seeds are sowed into the flowerpot, 4-5 seeds are ensured for each crop, and the germination rate of the seeds is more than 90%. Culturing and growing in artificial climate chamber after seeding, maintaining soil water content of 100%, maintaining temperature in greenhouse at 20-30deg.C, air humidity above 60%, and illumination intensity of 1.8 thousands Lux (illumination duration L: D is 12:12). When wheat grows to 2 leaves and 1 core and the fluazinam phytotoxicity begins to appear, spraying the stem and leaf of the pesticide to be tested and solved (wherein, the treatment of naphthylacetic acid and amino acid adopts barrel mixing treatment). After treatment, the water content of the soil is kept, the temperature in the artificial climate chamber is kept between 20 ℃ and 30 ℃, the air humidity is above 60 percent, and the illumination intensity is 1.8 thousand Lux (the illumination duration L: D is 12:12). The stem and leaf spraying treatment is carried out for 1 time every 3 days, and the treatment is carried out for 3 times in comparison with the multiple times of administration. The medicine application treatment is carried out by placing the medicine into a walking spray tower (HCL-2000) for spraying treatment after dispensing according to the designed dosage, each treatment is repeated for 4 times, the spraying height is 50cm, the spraying pressure is 0.2MPa, and the spraying water consumption is 600L/ha.
Visual results of the relief test are shown in table 4 below.
TABLE 4 Table 4
Note that: the effective dosages listed in the stem and leaf spray table are single dosages.
The test result shows that when the naphthalene acetic acid is in the 1 heart of the 2 leaves of the wheat, the effect of 1 time and 2 times of stem and leaf spraying on the residual phytotoxicity of the fluazinam is poor, the effect of 3 times of stem and leaf spraying is better, and the total effective amount of 3 times of naphthalene acetic acid needs to reach 1125-2250 g ai/ha. The effect of the stem and leaf spraying of 1 time, 2 times and 3 times of the combination of the naphthylacetic acid and the amino acid on relieving the residual phytotoxicity of the fluazinam is improved, the effect of the stem and leaf spraying of 3 times is obviously improved, the total effective dosage of the naphthylacetic acid for 3 times is 1125-2250 g ai/ha, and the total effective dosage of the amino acid for 3 times is 225g ai/ha.
Example 4 different pesticide compositions and Simultaneous application of Fludimoxaburner test on wheat
In the embodiment, the test treatment is implemented by water drip irrigation after seeding and before seeding.
And (3) performing test treatment by adopting a manual climate chamber potting test method along with drip irrigation before seedling sowing in a simulated field, mixing sandy soil and a nutrient matrix in a volume ratio of 1:2, taking a flowerpot with a caliber of 6.5cm and a depth of 5.5cm, and filling the soil to a height of 3/4. The crop seeds are sowed into the flowerpot, 4-5 seeds are ensured for each crop, and the germination rate of the seeds is more than 90%. After sowing, preparing mixed solutions of different pesticide composition and fluroxypyr (wherein the treatment of naphthalene acetic acid and humic acid or amino acid adopts barrel mixing), saturating the soil by adding liquid medicine at the bottom, culturing and growing in a artificial climate chamber, maintaining the water content of the soil at 100%, maintaining the temperature in the artificial climate chamber at 20-30 ℃, air humidity above 60%, and illumination intensity at 1.8 thousands Lux (illumination duration L: D is 12:12).
The phytotoxicity test method was the same as in example 1.
The visual inspection results of the preventive tests are shown in Table 5 below.
TABLE 5
The test result shows that when the crop is applied with the fluazinam with water drops simultaneously after the crop is planted and before the seedling, the dosage of the naphalic acid is more than 375g ai/ha, so that the phytotoxicity of the fluazinam to the wheat can be prevented, and 1500g ai/ha of humic acid and 75g ai/ha of amino acid have a certain effect on preventing the phytotoxicity of the fluazinam to the wheat; the effect of preventing the oxyfluorfen from phytotoxicity on wheat by combining the naphthalene acetic acid and the humic acid or combining the naphthalene acetic acid and the amino acid is improved to a certain extent compared with that of a single dose. The single agent or the combination can be used as the safety agent of the fluazinam.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the invention.
Claims (9)
1. A composition for improving the safety of crops after the application of the fluazinam, which is characterized by comprising naphthylacetic acid and water.
2. The composition of claim 1, further comprising a plant nutrient, wherein the nutrient is at least one of humic acid, amino acid.
3. The composition according to any one of claims 1-2, wherein the effective amount of naphthalene acetic acid is 375-2250g ai/ha.
4. Composition according to claim 2, characterized in that the effective amount of humic acid is 1000-2000g ai/ha, preferably 1500g ai/ha.
5. The composition of claim 2, wherein the effective amount of amino acid is 75-225g ai/ha.
6. A method of applying a composition according to any one of claims 1 to 5, comprising:
(a) Applying the composition of any one of claims 1-5 after sowing, before emergence or after transplanting of the crop; or alternatively
(b) After sowing and emergence of crops, applying the composition of any one of claims 1-5;
wherein the crop is planted in a farm field with a residue or application of fluazinam.
7. The method of claim 6, wherein the composition of method (a) is applied by drip irrigation; the composition in the method (b) is applied by means of stem and leaf spraying.
8. The method of claim 7, wherein the stem and leaf spraying is performed at least 1 time, more preferably at least 3 times.
9. The method of application according to claim 6, wherein the crop is selected from gramineous, leguminous, cucurbitaceous or solanaceous crops; further preferred are corn, wheat, rice, soybean, peanut, melon, pumpkin, tomato or capsicum; more preferably corn, wheat, soybean or capsicum.
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