CN1349736A - Mixed herbicide for wet direct-seeding rice field - Google Patents
Mixed herbicide for wet direct-seeding rice field Download PDFInfo
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- CN1349736A CN1349736A CN 01134069 CN01134069A CN1349736A CN 1349736 A CN1349736 A CN 1349736A CN 01134069 CN01134069 CN 01134069 CN 01134069 A CN01134069 A CN 01134069A CN 1349736 A CN1349736 A CN 1349736A
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- China
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- bensulfuron
- methyl
- fenclorim
- careless amine
- rice field
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Abstract
The mixed phytocide composition contains bensulfuron-methyl, pretilachlor and fenclorim as main component, in which the weight ratio of first two components is 1:19-25, and the weight ratio of last two components is 2.75-2.85:1. Besides, its composition also contains T/36, 8206C, xanthic acid, white carbon black and kaolin. Said phytocide is convenient in use, its weed-killing spectrum is broad, its total weed-control effect can be up to about 95%, its safety is high for rice seedling.
Description
One, technical field:
The invention belongs to chemical pesticide, be specifically related to the weedicide of wet direct-seeding rice field
Two, background technology:
Rice field weedicide now commonly used mainly contains 10% bensulfuron-methyl wetting powder and the 30% the third careless amine add fenclorim (safener) cream preparation.
The chemical name of bensulfuron-methyl (bensulfuron methyl) wherein:
2-{[(4.6-amino carbonyl amino dimethoxypyridin-2-yl)] the sulfonic group methyl }
Methyl benzoate
Its molecular formula: acid is C
15H
16N
4O
7The S ester is C
16H
18N
4O
7The S structural formula
It is a kind of selectivity inner sucting conduction type weedicide, and it mainly kill to remove weeds such as broad leaved weed in the rice field and sedge weed such as pondweed, wild arrowhead, difformed galingale herb, carp intestines, and poor to preventive effects such as grassy weed such as barnyard grass grass, firefly Lin, moleplant seeds.
The chemical name of the third careless amine (prtilachlor):
α-chloro-2.6 '-diethyl-N-(the 2-third oxygen ethyl) acetyl is for amine
Molecular formula is: C
17H
26CLHO
2Structural formula:
This is the special-purpose selective weedkiller of a kind of paddy field.Paddy rice has stronger capacity of decomposition to the third leather amine, but the resistance of rice seedling is poor, and the activity of weeding part of the third leather amine can produce poisoning to young rice seedling.For the safety of early stage dispenser, the fenclorim (CGA-123407) that must add q.s in the third careless amine is not subjected to poisoning as safener to protect young rice.This weedicide mainly kill to remove grass family and sedge weed in the rice field, as barnyard grass grass, moleplant seed, mexicana, firefly Lin, special-shaped nutgrass flatsedge, cyperus iria, carp intestines etc., but to anti-heterodynes such as broad leaved weed such as wild arrowhead, Sagittaria pygmaea, pondweeds.
Because the paddy field grass is complicated mutually, grass family often, sedge family, broad-leaf weeds weeds mix and give birth to, and adopt single weedicide can not disposablely prevent and kill off all kinds of weeds, if two kinds of medicaments are all used, cost an arm and a leg, use also inconvenience, therefore occurred mixed matching rice field weedicide in recent years, for example with bensulfuron-methyl, these two kinds of weed killer herbicides of propyl benzene amine add safener and other auxiliary agents and filler by a certain percentage mixes and makes a kind of composite formula weed killer herbicide, has solved the problem that a drug can be prevented and kill off the multiclass weeds simultaneously.Yet the component that is mixed is different with proportioning also different to herbicidal effect, and different rice fields is also inequality to herbicidal requirement, wet direct-seeding rice field for example, because the rice seedling is tender, the early stage careless slightly meeting of dispenser injures rice seedling.The Kingsoft, Jiading in Shanghai, Guia Hill, Qingpu, the wet straight rice field of giving ground such as trade in recent years, burning seedling phenomenon more or less appears when using some weedicide, its main cause is that the third careless amine and the improper fenclorim content of fenclorim ratio are lower in the weedicide, and peasant household is in actual applications because office's cloth dosage that may cause when spraying too much causes the injury of the third careless amine to seedling.Therefore seek a kind of, broad weed-killing spectrum safe to rice seedling, mixed herbicide that efficient is high is very important.
Three, summary of the invention:
The objective of the invention is to provide at wet direct-seeding rice field a kind of mixed herbicide of safe the best, make its broad weed-killing spectrum, preventive effect is good and direct sowing rice field children rice seedling do not had injury.Through test of many times, obtain this herbicidal prescription, it consists of: bensulfuron-methyl, the third careless amine, fenclorim (safener) T/36 (dispersant) 8206C (emulsifier), xanthic acid (thickener), white carbon (carrier), Songyang kaolin (filler)
Wherein the best proportioning of key component is:
The third careless amine and bensulfuron-methyl weight ratio are 19～25: 1
The third careless amine and fenclorim weight ratio are 2.75～2.85: 1
The percetage by weight of each component is: 1.2～1.8 bensulfuron-methyls
28.5～37.5 third careless amine
10～13.2 fenclorims
0.5?????T/C36
8???????8206C
0.1 xanthic acid
20～25 white carbons
Songyang kaolin supplies 100
Preparation processing method: earlier the former medicine of the third careless amine, fenclorim, bensulfuron-methyl, various auxiliary agent, filler are mixed after the weighing respectively, pulverize then, carry out the dedusting capture again and make wetting powder.
Advantage of the present invention and remarkable result:
1, easy to use, broad weed-killing spectrum, a dispenser can be prevented and kill off grass family, sedge family, all kinds of weeds of broadleaved herb section.
2, preventive effect is splendid, and (referring to the back table) is the most desirable kind in the wet direct-seeding rice field weedicide up to about 95% to the efficient of always preventing and kill off of weeds.
3, safe, young rice seedling to wet direct-seeding rice Tanaka does not have injury, because fenclorim content is higher in the prescription, both made peasant household also can not burn the seedling phenomenon owing to spray the too much situation of office's cloth weed killer herbicide dosage that may cause in actual use, this weedicide thinks that all this medicament is safe to direct seading rice after pesticide field efficacy medicine test is carried out respectively in Jiangxi Province's agriculture chemical examination administrative institute and weeds research center, academy of agricultural sciences, Jiangsu Province.
The scope of application of the present invention: weedicide provided by the invention is applicable to the rice field, is specially adapted to the wet direct-seeding rice field.
Four, embodiment:
It is as follows that weedicide provided by the invention is formed (weight %) embodiment:
It is 80～120 gram/mus at the dosage range of farmland use that " the 30% ortetamine wetting powder " that the foregoing description 1 preparation is produced put commodity " live peaceful " (the live pellet of former name) by name on market, its effective ingredient using dosage scope (gram/mu)
The third leather amine, 22.5～37.5 bensulfuron-methyls, 1.2～1.8 fenclorims, 8～12 back tables have provided live peaceful field control effectiveness test situation, can find out that by comparative trial this herbicidal herbicidal effect is splendid, and total preventive effect reaches about 95%.Subordinate list .30% is live would rather Wettable Powder to prevent and kill off 60 days effect research statisticses behind the rice direct-seeding field weed medicine
(xiushui; In September, 1999)
Annotate: 1. weeds fresh weight unit is g/m
22. alphabetical identical person is not remarkable for LSR method check difference on 0.05 (0.01) level after all preventive effects, otherwise reaches
| Handle (g/667m 2) | Repeat | Monochoria vaginalis | The barnyard grass grass | Mexicana | Firefly Lin | Total grass | ||||||
| Fresh weight (g) | Preventive effect (%) | Fresh weight (8) | Preventive effect (%) | Fresh weight (g) | Preventive effect (%) | Fresh weight (g) | Preventive effect (%) | Fresh weight (g) | Preventive effect (%) | |||
| 30% live would rather WP | ? ? ??80 | ??1 ??2 ??3 ??4 ? X | ???30 ???13 ????0 ????0 | ?????84.79 ?????93.41 ?????100 ?????100 ?????94.55aA | ???22 ???18 ???20 ???12 | ????91.24 ????92.83 ????92.03 ????95.22 ????92.83cC | ???26 ???40 ???16 ????0 | ?????87.42 ?????80.65 ?????92.26 ?????100 ?????90.08bB | ????10 ????14 ?????6 ?????8 | ?????66.44 ?????53.02 ?????79.87 ?????73.15 ?????68.12cC | ????93 ???100 ????42 ????20 | ?????86.42 ?????85.40 ?????93.87 ?????97.08 ?????90.69bB |
| ? ? ??100 | ??1 ??2 ??3 ??4 ? X | ????0 ????0 ????0 ????0 | ?????100 ?????100 ?????100 ?????100 ?????100aA | ????0 ????0 ????0 ????0 | ????100 ????100 ????100 ????100 ????100aA | ????0 ????0 ????0 ????0 | ?????100 ?????100 ?????100 ?????100 ?????100aA | ?????0 ?????0 ?????0 ?????0 | ?????100 ?????100 ?????100 ?????100 ?????100aA | ?????0 ?????0 ?????0 ?????0 | ?????100 ?????100 ?????100 ?????100 ?????100aA | |
| ? ? ??120 | ??1 ??2 ??3 ??4 ? X | ????0 ????0 ????0 ????0 | ?????100 ?????100 ?????100 ?????100 ?????100aA | ????0 ????0 ????0 ????0 | ????100 ????100 ????100 ????100 ????100aA | ????0 ????0 ????0 ????0 | ?????100 ?????100 ?????100 ?????100 ?????100aA | ?????0 ?????0 ?????0 ?????0 | ?????100 ?????100 ?????100 ?????100 ?????100aA | ?????0 ?????0 ?????0 ?????0 | ?????100 ?????100 ?????100 ?????100 ?????100aA | |
| ? ? ??200 | ??1 ??2 ??3 ??4 ? X | ????0 ????0 ????0 ????0 | ?????100 ?????100 ?????100 ?????100 ?????100aA | ????0 ????0 ????0 ????0 | ????100 ????100 ????100 ????100 ????100aA | ????0 ????0 ????0 ????0 | ?????100 ?????100 ?????100 ?????100 ?????100aA | ?????0 ?????0 ?????0 ?????0 | ?????100 ?????100 ?????100 ?????100 ?????100aA | ?????0 ?????0 ?????0 ?????0 | ?????100 ?????100 ?????100 ?????100 ?????100aA | |
| 30% sweeps the special missible oil 100 of fluorine | ??1 ??2 ??3 ??4 ? X | ???78 ???86 ???81 ???95 | ?????60.46 ?????56.40 ?????58.94 ?????51.84 ?????56.91cC | ????26 ????31 ????23 ????34 | ????89.64 ????87.65 ????90.84 ????86.45 ????88.65dD | ????0 ????0 ????0 ????0 | ?????100 ?????100 ?????100 ?????100 ?????100aA | ???9.5 ??10.3 ???5.1 ???7.0 | ?????68.12 ?????65.44 ?????82.89 ?????76.51 ?????73.24cBC | ?113.5 ?127.3 ?109.1 ?136.0 | ?????83.43 ?????81.41 ?????84.07 ?????80.14 ?????82.26cC | |
| 10% bensulfuron-methyl wetting powder 20 | ??1 ??2 ??3 ??4 ? X | ???72 ???39 ???54 ???58 | ?????63.50 ?????80.22 ?????72.62 ?????70.60 ?????71.74bB | ????8.3 ????7.1 ????6.4 ????8.2 | ????96.69 ????97.17 ????97.45 ????96.73 ????97.01bB | ????0 ????0 ????0 ????0 | ?????100 ?????100 ?????100 ?????100 ?????100aA | ?????8 ?????3 ?????6 ?????3 | ?????73.15 ?????89.93 ?????79.87 ?????89.93 ?????83.22bB | ??88.3 ??49.1 ??66.4 ??69.2 | ?????87.11 ?????92.83 ?????90.30 ?????89.89 ?????90.03bB | |
| Blank (CK) | ??1 ??2 ??3 ??4 ? X | ??205 ??213 ??190 ??181 ?197-75 | ????249 ????253 ????198 ????304 ????251 | ???213 ???209 ???195 ???210 ??206.75 | ??35.5 ??28.9 ??30.0 ??24.8 ??29.8 | ?702.5 ?703.9 ?613.0 ?719.8 ?684.8 | ||||||
The significant difference level.
Claims (2)
1, a kind of mixed herbicide that is used for wet direct-seeding rice field, it is characterized in that key component is bensulfuron-methyl, the third careless amine, safener fenclorim, and include dispersant T/36, emulsifier 8206C, thickener xanthic acid, carrier white carbon and filler Songyang kaolin, the percetage by weight of each component is:
1.2-1.8 bensulfuron-methyl
28.5-37.5 the third careless amine
10-13.2 fenclorim
0.5????????T/36
8??????????8206C
0.1 xanthic acid
The 20-25 white carbon
Songyang kaolin supplies 100, and wherein the weight ratio of the third careless amine and bensulfuron-methyl is 19-25: 1
The weight ratio of the third careless amine and fenclorim is 2.75-2.85:1
2,, it is characterized in that herbicidal composition is (heavy by the described weedicide of claim 1
Amount %) be:
1.5 bensulfuron-methyl
28.5 the third careless amine
10 fenclorims
0.5???T/36
8?????8206C
0.1 xanthic acid
20 white carbons
31.4 Songyang kaolin
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01134069 CN1349736A (en) | 2001-10-22 | 2001-10-22 | Mixed herbicide for wet direct-seeding rice field |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01134069 CN1349736A (en) | 2001-10-22 | 2001-10-22 | Mixed herbicide for wet direct-seeding rice field |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1349736A true CN1349736A (en) | 2002-05-22 |
Family
ID=4672205
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01134069 Pending CN1349736A (en) | 2001-10-22 | 2001-10-22 | Mixed herbicide for wet direct-seeding rice field |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1349736A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101785468A (en) * | 2010-03-25 | 2010-07-28 | 江苏丰山集团有限公司 | Weeding composition |
| CN105010373A (en) * | 2015-07-13 | 2015-11-04 | 上海祥霖农业技术有限公司 | Application method of paddy rice water direct-sowing field harrowing scatter-type pre-emergence sealing herbicide |
| CN106135251A (en) * | 2016-07-27 | 2016-11-23 | 上海祥霖农业技术有限公司 | Pretilachlor and bensulfuron-methyl spread drop and preparation method thereof |
| CN110683909A (en) * | 2019-09-24 | 2020-01-14 | 宁坚 | Novel plant snail-killing herbicide regulator production equipment and process method thereof |
| CN111972404A (en) * | 2020-09-03 | 2020-11-24 | 大连仁邦农业科技集团有限公司 | Solvent for bensulfuron methyl, pretilachlor and fenclorim original drugs and missible oil preparation thereof |
-
2001
- 2001-10-22 CN CN 01134069 patent/CN1349736A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101785468A (en) * | 2010-03-25 | 2010-07-28 | 江苏丰山集团有限公司 | Weeding composition |
| CN105010373A (en) * | 2015-07-13 | 2015-11-04 | 上海祥霖农业技术有限公司 | Application method of paddy rice water direct-sowing field harrowing scatter-type pre-emergence sealing herbicide |
| CN106135251A (en) * | 2016-07-27 | 2016-11-23 | 上海祥霖农业技术有限公司 | Pretilachlor and bensulfuron-methyl spread drop and preparation method thereof |
| CN110683909A (en) * | 2019-09-24 | 2020-01-14 | 宁坚 | Novel plant snail-killing herbicide regulator production equipment and process method thereof |
| CN111972404A (en) * | 2020-09-03 | 2020-11-24 | 大连仁邦农业科技集团有限公司 | Solvent for bensulfuron methyl, pretilachlor and fenclorim original drugs and missible oil preparation thereof |
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