CN107581200A - A kind of composition pesticide of Han hymexazos - Google Patents
A kind of composition pesticide of Han hymexazos Download PDFInfo
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- CN107581200A CN107581200A CN201711035808.3A CN201711035808A CN107581200A CN 107581200 A CN107581200 A CN 107581200A CN 201711035808 A CN201711035808 A CN 201711035808A CN 107581200 A CN107581200 A CN 107581200A
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Abstract
The invention discloses a kind of composition pesticide of Han hymexazos, containing active component crotalaria mucronata extract He hymexazo, wherein crotalaria mucronata extract extracts from crotalaria mucronata blade, and crotalaria mucronata extract is mixed He hymexazo to have synergistic effect in the range of certain proportion to Fusarium oxysporum；Crotalaria mucronata extract is Yu the mass fraction ratio of hymexazo is 30:1~1:10, it is preferably in a proportion of 20:1~1:5, further preferred ratio is 9:1~6:1, still more preferably ratio is 9:1 and 6:1；The composition pesticide can also be processed into pesticidal preparations, including auxiliary agent and active component, and for crotalaria mucronata extract He the mass fraction percentage composition of hymexazo in the composition is 5%~90%, remaining is insecticides adjuvant；The composition pesticide is applied to the preventing and treating plant disease as caused by Fusarium oxysporum such as watermelon blight, cucumber fusarium axysporum, Muskmelon Fusarium wilt.
Description
Technical field
The invention belongs to botanical pesticide and chemical pesticide synergistic composition field.It is related to a kind of agricultural chemicals group of Han hymexazos
Compound, containing active component crotalaria mucronata extract He hymexazo.
Background technology
Hymexazo (hymexazol), alias：Hymexazol, vertical withered spirit, methylpartricin sodium laurylsulfate, kill peaceful line, hydroxyisoxazole, native bacterium clearly, first hydroxyl
Isoxazole；Chemical name：3- hydroxy-5-methyl-isoxazoles.Hymexazo is novel agrochemical bactericide of new generation, systemic fungicide,
Soil sterilants；Hymexazo green, environmental protection | it is less toxic, nuisanceless, be adapted to crop fruit tree, vegetables, wheat, cotton, rice, beans,
It is melon etc..Hymexazo can effectively suppress the mycelial normal growth of disease fungus or directly kill germ, and and can promotes plant life
It is long；And with crop root growth development, strong plantlets and rootage is promoted, improve the survival rate of crops.The permeability of hymexazo is high,
Two hours are moved to plant whole body with regard to that can be moved to stem, 20 hours.
Crotalaria mucronata (Crotalaria pallida Ait.) is pulse family (Leguminosae), Papillionoideae
(Papilionoideae), Crotalaria (Crotalaria Linn.) plant, alias：White crotalaria mucronata, wild bitter beans, big eye be blue,
Wild soya bean grass, ZHUSHIQING, sickle senna herb or leaf, big Ma Ling, water pepper bamboo, rust-coloured crotalaria herb with root.Upright stunted brushwood.The pubescence that stem branch is close to.
Crotalaria mucronata leaf alternate, trifoliolate leaf；The long 2-4cm of petiole, by close hair；Stipule is tiny, setiform and it is caducous；The vanelets length of falling ovate
Circular or narrow ellipse, long 3-5cm, wide 1.5-2cm, tip blunt circle are sometimes micro- to lack.Base portion wedge shape, above it is hairless, below omit quilt
Mercerising matter hair；Vein is obvious.Raceme basidixed and axillary, there is colored 20-50；Bract is caducous；The long 4-6mm of calyx, calyx tube cup
Shape, tip 5 split, sliver triangle.It is rolled over, it is about isometric with calyx tube；The crown of papilionaceous flower, yellow, vexil is embedding with purple fringe, is about
13mm, corolla are far stretched out outside calyx, stamen 10, top separation, ovary Long Circle, and curved in style, column cap is small.Pod is oval
Shape, hair when tender, be bordering on when ripe it is hairless, it is sagging, fruit lobe ftracture when reverse.20-30, seed.Flower, the fruiting period 6-10 months.
According to document announcement (Agricultural University Of Jiangxi's journal 2014,36 (4):861-867, crotalaria mucronata leaf extract general flavone
Content and its bacteriostatic activity research, Wang Fang etc.), crotalaria mucronata leaf extract is to Fusarium oxysporum (Fusarium oxysporum)
With inhibitory activity.
Fusarium oxysporum (Fusarium oxysporum) is the Fusarium phytopathy original, infects crop and causes crop withered
Wither disease, cause cucumber fusarium axysporum, Fusarium oxysporum f. sp. niveum to infect west as Fusarium oxysporum cucumber specialized form infects cucumber
Melon causes watermelon blight, Fusarium oxysporum muskmelon specialized form to infect muskmelon and cause Muskmelon Fusarium wilt.Fusarium oxysporum can be with
Infect other crops and cause crop droop.
Cucumber fusarium axysporum can occur in whole growth period, and killed strain is manifested initially by partial blade or a lateral lobe for plant
The wilting of piece noon is sagging, like water shortage shape, can recover sooner or later, and later wilting blade is on the increase, and gradually throughout complete stool, the morning and evening is not
It can restore, and it is withered quickly, it is most with the morbidity of flowering and fruit bearing phase.Seedling stage fall ill when basal part of stem browning hang contracting, wilt it is broken.Seedling
When aggrieved early, it can cause to rot before being unearthed, or dehydration shape just occurs in cotyledon soon for emergence, wilting is sagging, and (samping off is first
Wilted after dampinging off).When strain is fallen ill, initial stage, aggrieved plant showed as partial blade or the side blade of plant, under noon wilts
Hang down, like water shortage shape, but recover sooner or later, can not again recover and wilt withered after a couple of days.Main stem basal part of stem lobe, tear rhizome disease
Portion, vascular bundle become yellowish-brown and to dark brown and upwardly extended.When moist, basal part of stem one side of something stem skin lobe, often there is resin-like colloid to overflow
Go out, above there is pink mustiness thing, last sick portion becomes silk fiber crops shape.Cause of disease is pinch outs cucumber specialized form (Fusarium
Oxysporum (Schl.) F.sp cucumerinum Owen), belong to Fungi Imperfecti fungi.Germ produces size two types point
Raw spore, macroconidium spindle or sickleshaped, water white transparency, terminal cell cone, have it is micro- be in hook-shaped, base portion rounding
Section shape or sertoli cell are bored, has 1~3, barrier film.Microconidia is born in aerial hyphae more, ellipse or sausage shape, colourless
It is transparent, no barrier film.Chlamydospore surface is smooth, yellowish-brown.
Watermelon blight is commonly called as " dead seedling disease ", early stage, and the blade in diseased plant vines is gradually wilted forward from base portion, seemingly
Water shortage shape, noon become apparent from, initial 1,2, can still recover normal sooner or later, and after a few days, plant, which is wilted, no longer to recover, slowly withered
Extremely, most cases complete stool is fallen ill, and the diseased plant also having only part vines are fallen ill, and remaining vines is normal.Disease plant vines base portion is slightly
Hang contracting, sick portion's lobe, have pale red (amber) colloidal fluid spilling, butt rot discoloration, rip cutting root neck, its vascular bundle part becomes
Brown.Watermelon blight is by Deuteromycotina fungi, pinch outs watermelon specialized form (Fusarium oxysporum
F.sp.niveum (E.F.Smith) Snyder et Hansen) infect caused by.Germ band bacterial manure decomposed in soil and not
Survived the winter in material, in the case where leaving host, can survive 5-6, and part germ can be more than Survival for 10 Years.Withered germ of water-melon master
To be invaded by root wound or root hair apical cell gap, first in host's tube wall iuntercellular and Intracellular growth, subsequently into
Vascular bundle, developed in conduit, germ secretion pectase and cellulase, decompose and destroy cell, make accumulation pectin class in conduit
Material, obstruction conduit, Water Transportation is influenceed, cause plant to be wilted.The disease is propagated mainly by containing soil bacteria, continuous cropping plantation, soil
Middle germ is more, and for diseased plant rate up to 70% or so, invalid body and sick excrement, seed can also pass disease.
Muskmelon Fusarium wilt is also known as epidemic disease, the plant disease being led to by fungi or bacterium, and morbidity is unexpected, and symptom includes serious
The death of stigma, wilting or leaf, flower, fruit, stem or whole plant.The tender tissue for growing rapid muskmelon is often attacked.Mostly
Number is important melon by the infection of one or more epidemic diseases.Muskmelon Fusarium wilt can influence the flower of muskmelon, leaf, bud bag, seedling, sprig,
Stem (rattan) and top tip.Pathogen is sharp spore reaping hook muskmelon specialized form (Fusarium oxysporum (Schl.) f.Sp.melonis
(Leach et Currenee) Snyder e tHansen), belong to Deuteromycotina fungi.The climing upper macroconidium fusiformis of melon
Or sickle, water white transparency, both ends are tapering, and terminal cell cone, is slightly in hook-shaped, base portion inverted cone section shape sometimes, pediculated cells,
Tool tabula 0~3 or 1~3,12.5~32.5 × 3.75~6.25 microns of 1 barrier film of size, the 21.25 of two barrier films
~32.5 × 5.0~7.5 microns, 27.5~45.0 × 5.5~10.0 microns of three barrier films；Microconidia is born in gas more
In raw mycelia, ellipse to nearly fusiformis or avette, water white transparency, 7.5~20.0 × 2.5~5.0 microns of size.Cultivated in PDA
Aerial hyphae is in villiform on base, light pale purple；Substratess surface is led a cow purple deeply, and culture medium is non-discolouring.On rice medium
Mycelia villiform, silvery white.Mycelia is sparse on mung bean culture medium, silvery white to light cocoon yellow.It is reported that this bacterium has Physiological Differentiation,
But domestic various regions are mostly same fungus strain.The bacterium is pathogenic strong to muskmelon, muskmelon, pathogenic to cucumber weak, to watermelon, wax gourd, silk
The no pathogenicities such as melon, pumpkin.
Muskmelon Fusarium wilt early stage, plant leaf are gradually wilted from base portion to top, and noon is obvious, and starting sooner or later can be with
Recover, plant whole blade is wilted sagging after a few days, is no longer recovered；Vines base portion is slightly hung contracting, rough coat, often there is lobe；Tide
Rhizome portion is rotted in water stain shape when wet, and surface often produces white or pink mustiness thing.Diseased plant root becomes brown, easily pulls up, cortex
Easily peelable with xylem, vascular bundle becomes brown；Onset peak period is in plant blossom to the phase of bearing fruit.
Muskmelon Fusarium wilt disease stem absolutely carries disease germs, and seed also carries disease germs.The disease is with the mycelia on sick stem, seed or invalid body
Survived the winter in body and chlamydospore and the sclerotium organic fertilizer that carries disease germs decomposed in soil and not, turn into next year primary source of infection.In soil
Germ invades between root wound or root hair apical cell, afterwards into vascular bundle, is developed in conduit, and by conduit, from disease
Stem expands to carpopodium, reaches fruit, is expanded to again on seed with fruit rot, causes seed-borne fungi.The kind carried disease germs is sowed in production
It can be caught an illness after son emergence；The large and small conidium obstruction conduit bred in vascular bundle, excrete poison, cause host to be poisoned,
Melon leaf is set to wilt rapidly.The superinfection of overground part is mainly by pruning or tying up climing caused wound.Whether serious disease generation is,
Depend primarily on the amount of infecting then.High temperature is advantageous to the sick generation and extension, and relative air humidity more than 90% is easily susceptible.
The single use of agricultural chemicals can bring resistance risk, and agriculture chemical compounding is the effective way for solving resistance problem.
Develop new product bactericide is expensive, the cycle is grown, and by contrast, exploitation is efficient, less toxic, low-residual with research
Compounding have with mixture invest small, lead time it is short and by attention both domestic and external, it is numerous and confused to increase development dynamics.
The combination of hymexazo and crotalaria mucronata extract has no report.
The content of the invention
The present invention provides a kind of composition pesticide of Han hymexazos, containing active component crotalaria mucronata extract He hymexazo,
For preventing and treating watermelon blight, cucumber fusarium axysporum, Muskmelon Fusarium wilt, can be used for preventing and treating other crops as caused by sickle-like bacteria
Disease.
The present invention is achieved through the following technical solutions：
A kind of composition pesticide of Han hymexazos, contain active component crotalaria mucronata extract He hymexazo, crotalaria mucronata extraction
The mass fraction ratio of thing and hymexazo is 30:1~1:10, it is preferably in a proportion of 20:1~1:5, further preferred ratio is 9:1
~6:1, still more preferably ratio is 9:1 and 6:1.
The crotalaria mucronata extract extracts from crotalaria mucronata blade.
The crotalaria mucronata blade is dry crotalaria mucronata blade.
The crotalaria mucronata extract He the mass fraction of hymexazo account for the percentage of composition quality number for 5%~
90%, remaining is insecticides adjuvant.
Described composition pesticide, its preparation method are as follows：Take several pieces crotalaria mucronata extract, some Fen hymexazos, if
Dry part auxiliary agent；It is placed in after mentioned component is well mixed in container and is sheared 20 minutes with 6000 turns per minute of cutter, that is, is made
The composition pesticide.
Composition pesticide preparation method under special ratios is as follows：Take 90 parts of the Fen, hymexazos of crotalaria mucronata extract 810, wood
50 parts of quality sodium sulfonate, 50 parts of dodecyl sodium sulfate, 800 parts of deionized water；It is placed in after mentioned component is well mixed in container
Sheared 20 minutes with 6000 turns per minute of cutters, that is, the composition pesticide is made.
Composition pesticide preparation method under special ratios is as follows：Take 100 parts of the Fen, hymexazos of crotalaria mucronata extract 600, shell
40 parts of glycan, 60 parts of dodecyl sodium sulfonate calcium, 200 parts of deionized water；It is placed in after mentioned component is well mixed in container with every point
The cutter that 6000 turns of clock is sheared 20 minutes, that is, the composition pesticide is made.
Composition pesticide of the present invention, which is applied to the preventing and treating crop disease as caused by sickle-like bacteria, especially Fusarium oxysporum, to be caused
Cucumber fusarium axysporum, watermelon blight, Muskmelon Fusarium wilt.
The present invention has the advantages that：
1st, the crotalaria mucronata extract Yu hymexazos in the range of certain proportion to the bacterium of Fusarium oxysporum cucumber specialized form
Silk growth inhibition has synergistic function.
2nd, hymexazo and crotalaria mucronata extract compound, and reduce Pesticide use amount, reduce use cost, alleviate to ring
The pollution in border, the drug-fast service life for producing, adding agricultural chemicals of pest and disease damage is delayed.
Embodiment
The crotalaria mucronata extract of embodiment one extracts
Take dry crotalaria mucronata blade to crush sample 685g, extracted with 80% ethanol, the refluxing extraction 3 under 50 DEG C of water-baths
It is secondary, each 1h, merge extract solution, be concentrated under reduced pressure, add aqueous suspension, with petroleum ether extraction 3 times, merging is concentrated to give medicinal extract 30g, then
Extracted 3 times with chloroform, merging is concentrated to give medicinal extract 16g, is finally extracted with ethyl acetate 3 times, and merging is concentrated to give medicinal extract 10g, finally steams
Solid carbon dioxide obtains medicinal extract 82g.
Refer to (Agricultural University Of Jiangxi's journal 2014,36 (4):861-867, Wang Fang etc.) crotalaria mucronata leaf extract is always yellow
Method described in ketone content and its bacteriostatic activity research.
The preparation of the composition pesticide of embodiment two
Composition 1：Take 90 parts of the Fen, hymexazos of crotalaria mucronata leaf extract (aqueous phase) 810,50 parts of sodium lignin sulfonate,
50 parts of dodecyl sodium sulfate, 800 parts of deionized water；It is placed in after mentioned component is well mixed in container with 6000 turns per minute
Cutter is sheared 20 minutes, that is, the composition pesticide is made.
Composition 2：Take 100 parts of the Fen, hymexazos of pig dung blade beans extract (aqueous phase) 600,40 parts of chitosan, dodecane
60 parts of base sulfoacid calcium, 200 parts of deionized water；The cutter in container with 6000 turns per minute is placed in after mentioned component is well mixed
Shearing 20 minutes, that is, the composition pesticide is made.
Composition 3：Take 90 parts of the Fen, hymexazos of crotalaria mucronata leaf extract (ethyl acetate phase) 810, sodium lignin sulfonate
50 parts, 50 parts of dodecyl sodium sulfate, 800 parts of deionized water；It is placed in after mentioned component is well mixed in container with per minute
6000 turns of cutter is sheared 20 minutes, that is, the composition pesticide is made.
Composition 4：Take 100 parts of the Fen, hymexazos of crotalaria mucronata leaf extract (ethyl acetate phase) 600,40 parts of chitosan,
60 parts of dodecyl sodium sulfonate calcium, 200 parts of deionized water；It is placed in after mentioned component is well mixed in container with 6000 turns per minute
Cutter is sheared 20 minutes, that is, the composition pesticide is made.
(aqueous phase) is He hymexazo is yellow to Fusarium oxysporum after being mixed with certain proportion for the crotalaria mucronata leaf extract of embodiment three
The indoor virulence activities in combination effect measure of melon specialized form (suppresses disease fungus mycelial growth experiment-Plating, with reference to NY/T
1156.2-2006；The synergy measure of mixture, with reference to NY/T 1156.6-2006)
Survey toxicity index (ATI)=(EC of standard agent50The EC of/reagent agent50)×100；
The virulence of the percentage composition+B medicaments of A medicaments refers in toxicity index × mixture of theoretical toxicity index TTI=A medicaments
The percentage composition of B medicaments in number × mixture；
Co-toxicity coefficient (CTC)=[mixture actual measurement toxicity index (ATI)/mixture theoretical toxicity index (TTI)] × 100
According to the abundant methods of Sun Yun, the synergy of pharmacy mix is evaluated according to co-toxicity coefficient (CTC), i.e. CTC≤80 are association
Same antagonism, 80 ＜ CTC ＜ 120 are joint action of antagonism, and CTC >=120 are synergistic function.
The crotalaria mucronata leaf extract of table 1 (aqueous phase) is He after being mixed with certain proportion to Fusarium oxysporum cucumber specially change by hymexazo
The indoor virulence activities in combination effect measure of type (Fusarium oxysporum (Schl.) F.sp cucumerinum Owen)
As a result (investigate within 7 days after inoculation)；Crotalaria mucronata leaf extract (aqueous phase) is referred to as extract (aqueous phase) in table 1.
The data result that table 1 is recorded shows that (aqueous phase) Yu hymexazos are 30 for crotalaria mucronata leaf extract:1~1:In the range of 5
There is synergistic effect to the mycelial growth inhibitory action of Fusarium oxysporum cucumber specialized form, co-toxicity coefficient is more than 130；Pig dung
(aqueous phase) Yu hymexazos are 9 for beans leaf extract:1~6:The mycelial growth of Fusarium oxysporum cucumber specialized form is pressed down in the range of 1
Make of having preferable synergistic effect, co-toxicity coefficient is more than 2600；Crotalaria mucronata leaf extract (aqueous phase) Yu hymexazos
Mixed proportion is 1:10-20 does not have synergistic effect then to the mycelial growth inhibitory action of Fusarium oxysporum cucumber specialized form, altogether poison
Coefficient is less than 120.
Example IV crotalaria mucronata leaf extract (ethyl acetate phase) He hymexazo mixed with certain proportion after to sharp spore sickle
The indoor virulence activities in combination effect measure of knife bacterium cucumber specialized form (suppresses disease fungus mycelial growth experiment-Plating, reference
NY/T 1156.2-2006；The synergy measure of mixture, with reference to NY/T 1156.6-2006)
Survey toxicity index (ATI)=(EC of standard agent50The EC of/reagent agent50)×100；
The virulence of the percentage composition+B medicaments of A medicaments refers in toxicity index × mixture of theoretical toxicity index TTI=A medicaments
The percentage composition of B medicaments in number × mixture；
Co-toxicity coefficient (CTC)=[mixture actual measurement toxicity index (ATI)/mixture theoretical toxicity index (TTI)] × 100
According to the abundant methods of Sun Yun, the synergy of pharmacy mix is evaluated according to co-toxicity coefficient (CTC), i.e. CTC≤80 are association
Same antagonism, 80 ＜ CTC ＜ 120 are joint action of antagonism, and CTC >=120 are synergistic function.
(ethyl acetate phase) is He hymexazo is yellow to Fusarium oxysporum after being mixed with certain proportion for the crotalaria mucronata leaf extract of table 2
The indoor virulence activities in combination of melon specialized form (Fusarium oxysporum (Schl.) F.sp cucumerinum Owen) is made
(investigated within 7 days after inoculation) with measurement result；Crotalaria mucronata leaf extract (ethyl acetate phase) is referred to as extract (acetic acid in table 2
Ethyl ester phase).
The data result that table 2 is recorded shows that (ethyl acetate phase) Yu hymexazos are 20 for crotalaria mucronata leaf extract:1~1:
There is synergistic effect to the mycelial growth inhibitory action of Fusarium oxysporum cucumber specialized form in the range of 10, co-toxicity coefficient is 130
More than；(ethyl acetate phase) Yu hymexazos are 9 for crotalaria mucronata leaf extract:1~6:Fusarium oxysporum cucumber is specially changed in the range of 1
The mycelial growth inhibitory action of type has preferable synergistic effect, and co-toxicity coefficient is more than 300；And crotalaria mucronata leaf extract
(ethyl acetate phase) Yu hymexazos mixed proportion is 30:1 and 1:The mycelial growth of 20 pairs of Fusarium oxysporum cucumber specialized forms suppresses
Effect does not have synergistic effect then, and co-toxicity coefficient is less than 120.
No. 3 five embodiment of embodiment, two composition 1, composition preventing and treating crop droop field control effectiveness tests.Table 3 is implemented
Two composition of example 1, the preventing and treating cucurbits fusarium wilt of composition 3 field control effectiveness test results (pouring root during melon transplanting, 30 days after medicine
Investigation).
Table 3 record data result show, No. 3 composition 1, composition mg/kgs of active ingredient extension rate 200
Preventing and treating watermelon blight, Muskmelon Fusarium wilt, cucumber fusarium axysporum have preferable prevention effect.
Claims (10)
- A kind of 1. composition pesticide of Han hymexazos, it is characterised in that：Contain active component crotalaria mucronata extract He hymexazo, pig The mass fraction ratio of dung beans extract and hymexazo is 30:1~1:10.
- 2. composition pesticide according to claim 1, it is characterised in that：Crotalaria mucronata extract is He the mass fraction of hymexazo Ratio is 20:1~1:5.
- 3. composition pesticide according to claim 1, it is characterised in that：Crotalaria mucronata extract is He the mass fraction of hymexazo Ratio is 9:1~6:1.
- 4. composition pesticide according to claim 1, it is characterised in that：Crotalaria mucronata extract is He the mass fraction of hymexazo Ratio is 9:1.
- 5. composition pesticide according to claim 1, it is characterised in that：Crotalaria mucronata extract is He the mass fraction of hymexazo Ratio is 6:1.
- 6. according to the composition pesticide described in Claims 1 to 5 any one, it is characterised in that：Crotalaria mucronata extract extracts From crotalaria mucronata blade.
- 7. according to the composition pesticide described in Claims 1 to 5 any one, it is characterised in that：Crotalaria mucronata extract is He Evil The percentage that mould clever mass fraction accounts for composition quality number is 5%~90%, and remaining is insecticides adjuvant.
- 8. the composition pesticide preparation method described in claim 4, it is characterised in that：Take the Fen, hymexazos of crotalaria mucronata extract 810 90 parts, 50 parts of sodium lignin sulfonate, 50 parts of dodecyl sodium sulfate, 800 parts of deionized water；It is placed in after mentioned component is well mixed Sheared 20 minutes with 6000 turns per minute of cutter in container, that is, the composition pesticide is made.
- 9. the composition pesticide preparation method described in claim 5, it is characterised in that：Take the Fen, hymexazos of crotalaria mucronata extract 600 100 parts, 40 parts of chitosan, 60 parts of dodecyl sodium sulfonate calcium, 200 parts of deionized water；Container is placed in after mentioned component is well mixed The middle cutter with 6000 turns per minute is sheared 20 minutes, that is, the composition pesticide is made.
- 10. the composition pesticide described in Claims 1 to 5 any one is withered in preventing and treating cucumber fusarium axysporum, watermelon blight, muskmelon The application withered in disease.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108477244A (en) * | 2018-03-18 | 2018-09-04 | 刘西芳 | A method of it improving cactus and fixes GHG carbon dioxide total amount |
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| CN102432392A (en) * | 2011-09-28 | 2012-05-02 | 广东中迅农科股份有限公司 | Drug fertilizer granules for controlling watermelon wilt and preparation method thereof |
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| CN103053547A (en) * | 2013-01-06 | 2013-04-24 | 广东中迅农科股份有限公司 | Bactericidal composition of boscalid and hymexazol |
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Application publication date: 20180116 |