What herbicide uses the history to already exceeded 60 years in our country is long, simplify as paddy help advance somebody's career to be used what total volume of straw of frequent promotion of the technology, paddy returns cropland and herbicide in great quantities wait for a reason, rice field fireweed produces rate serious with each passing day, drug-fast fireweed produces a circumstance to also increase ceaselessly.
Before 2000, fireweed of rice field resistance to the action of a drug is only a kind; Before 2010, only 4 kinds of drug-fast fireweed; End 2017, have rank grass of 14 kinds of rice fields drug-fast to generation of 7 kinds of 10 kinds of herbicide. Instrument of medicine of center of promotion of countrywide farming ability is in academy Liang Diyun to point out, the heavy disaster area that the direct seeding cropland of the downstream Hunan, Hubei, Anhui, Jiangxi, Jiangsu, Zhejiang province in the Yangtse River and northwest Ningxia is fireweed of rice field resistance to the action of a drug.
Drug-fast fireweed browbeats badly the crop of paddy, cause pecuniary loss. How does northeast paddy produce area fireweed to prevent make? Where does rice field of catchment of the Yangtse River apply medical difficulty and pain spot to be in again? In " the 3rd farm fights sexual fireweed prevention and cure to communicate forum of meeting and herbicide development height " on, each expert produces area and paddy of catchment of the Yangtse River to produce an area to undertake analyse and be combinged in the light of northeast paddy, for rice field fireweed prevention and cure gives counsel.
Rice field fireweed produces degree to weigh, distributing wide, fight a gender strong
54.3% what crop of northeast area rice holds countrywide rice total output, main fireweed has the rice field standing grain of barnyard grass of the paddy barnyard grass, barnyard grass that do not have awn, barnyard grass length beard, fireweed paddy, river, Li, wild arrowhead, rain is long flower, bur beggar-ticks, Lin of grass of Shu of foliaceous beggar-ticks, flat lever, firebug, beautiful Lin, different nutgrass flatsedge, .
In Shanghai rice field, barnyard grass grass and thousand gold is current two kinds of the biggest to crop influence fireweed, thousand gold produces the rice field of successive and old direct seeding have aggravating tendency; Knotweed of three-colored amaranth of ear leaf water, clove is hollow lotus seed grass and barnyard grass of double spic sparrow happen to also appear to kill ascendant trend.
Advantage of fireweed of Zhejiang province rice field is planted grass of tongue of grass of barnyard grass of sparrow of the grass that it is barnyard grass, thousand gold, double spic, different nutgrass flatsedge, hollow lotus seed, duck, short arrowhead, successively felt of dish, ox hair and lilac knotweed.
Plant of Shenyang agriculture college protects academic Ji Mingshan to teach the introduction, northeast paddy produces an area to fight sexual fireweed to 9 kinds of fireweed fight a gender to 7 kinds of herbicide happening, it is barnyard grass of barnyard grass grass, paddy, paddy respectively Li standing grain, rain is long Lin of felt of grass of flower, arrowhead, wild arrowhead, Shu , ox hair, firebug, the fireweed that fight a gender produces a circumstance to weigh. Zhejiang saves Yao Xiaoming of section chief of division of prevention and cure of bureau of plant protection quarantine to investigate discovery, the fireweed in the rice field endangers degree to be cropland of dry rice of ＞ of cropland of late rice of continuous cropping of ＞ of cropland of single cropping of rice, direct seeding cropland and cast fireweed of rice seedling bed to endanger cropland of transplant of degree overweight convention,
Serial number
Fireweed name
Fireweed fights sexual herbicide breed
1
Barnyard grass grass
2 chloroquine Lin is acerbity
2
Careless amine of 5 fluorine sulphur
3
Cyanogen fluorine careless ester
4
Paddy insignificants
Careless amine of 5 fluorine sulphur
5
Careless amine of evil Zun acyl
6
Standing grain of paddy plum family name
Careless amine of 5 fluorine sulphur
7
Grand of benzyl Mi sulphur
8
Rain is long flower
Grand of benzyl Mi sulphur
9
Grand of Bi Mi sulphur
10
Arrowhead
Grand of benzyl Mi sulphur
11
Grand of Bi Mi sulphur
12
Wild arrowhead
Grand of benzyl Mi sulphur
13
Shu grass
Grand of benzyl Mi sulphur
14
Ox hair felt
Grand of benzyl Mi sulphur
15
Firebug Lin
Grand of benzyl Mi sulphur
Living things of weeds of resistance to the action of a drug of northeast area paddy (end 2017)
The rice field weeds serious turn, right " careless " drug ability is effective
Professor Ji Mingshan points out on the conference, prevention and cure of fireweed of northeast rice field should accomplish two respects, it is seedbed fireweed prevents accuse: Shop dish before every mus of gush applies grand of Bi Mi sulphur 60 grams, use prophylaxis and treatment 3 arris grass, broad Xie Cao and barnyard grass grass; The gush after to earth up applies fourth · to attack mixture closes weed; 3 leaves period (before transplanting rice seedlings 7 - 10 days) careless ester of every mus of fluorine that use cyanogen 120 grams, cauline leaf sparge.
2 it is this cropland fireweed is prevented accuse, come up out of land in fireweed the first height (after bubble cropland 7 - 10 days) when, continous of grass of Shu of paddy of barnyard grass of paddy of prevention and cure, fireweed, flat lever, wild arrowhead, water; Fireweed comes up out of land the 2nd height (after transplanting rice seedlings 10 - 15 days) when, rain of prevention and cure is long Lin of flower, firebug, pondweed, small Ci Zao.
Active ingredient
Common content
Kill careless music score
Applicable period
Use method
Fourth careless amine
60%90%
Barnyard grass grass
Rain is long flower
Opposite sex nutgrass flatsedge
After before transplanting rice seedlings, transplanting rice seedlings
Poisonous earth is spilled irrigate
Third careless amine
50%
Paddy of barnyard grass grass, fireweed
Rain is long flower
Opposite sex nutgrass flatsedge
After before transplanting rice seedlings, transplanting rice seedlings
Poisonous earth is spilled irrigate
careless ketone
12%25%
Barnyard grass grass, rain is long nutgrass flatsedge of beautiful opposite sex
Before transplanting rice seedlings
Swing apply
Careless aether of second oxygen fluorine
24%
Paddy of barnyard grass grass, fireweed
Rain is long flower
Opposite sex nutgrass flatsedge
Before transplanting rice seedlings
Poisonous earth is spilled irrigate
Careless amine of benzene Sai acyl
50%
Barnyard grass careless rain is long flower
Before after transplanting rice seedlings, transplanting rice seedlings
Poisonous earth is spilled irrigate
Grand of Bi Mi sulphur
10%
Broad Xie Cao 3 arris are careless
Before after transplanting rice seedlings, transplanting rice seedlings
Poisonous earth is spilled irrigate
Grand of benzyl Mi sulphur
30%
Broad Xie Cao 3 arris are careless
Before after transplanting rice seedlings, transplanting rice seedlings
Poisonous earth is spilled irrigate
Careless amine of 5 fluorine sulphur
2.5%
Part of barnyard grass grass, broad leaf grass 3 arris are careless
After transplanting rice seedlings
Sparge
2 chloroquine Lin is acerbity
50%
Barnyard grass careless rain is long flower
After transplanting rice seedlings
Sparge poisonous earth
2 armour 4 chloric
56%
Broad Xie Cao 3 arris are careless
After transplanting rice seedlings
Sparge
Destroy grass loosens
48%
Broad Xie Cao 3 arris are careless
After transplanting rice seedlings
Sparge
Cyanogen fluorine careless ester
10% 25%
Barnyard grass grass, paddy insignificants
After transplanting rice seedlings
Sparge
Grass attacks on the west clean
25%
Broad part of a historical period is rough
After transplanting rice seedlings
Poisonous earth is spilled irrigate
Paddy Tian Chang uses herbicide (data comes from Ji Mingshan of Shenyang agriculture college to teach)
It what period uses drug is good that what period uses drug? Whether is early days necessary to seal cropland? After be be before sowing, sealed or being sowed, seal? Is rice field fireweed sealed first or kill first? How is ability of effect of prevent and kill off of fireweed of processing rice field achieved best? Wu Xiangwen's researcher passes an experiment to prove, in rice field of machine direct seeding " before sowing, seal + the Miao Qianfeng after sowing + paddy grows early days is banned " prevent effect to be achieved 9 days after medicine 96.34% , medical hind is achieved 15 days 94.80% ; "The Miao Qianfeng after sowing + cauline leaf is handled + paddy grows early days is banned " medical hind prevents effect 9 days to amount to 97.56% , medical hind is amounted to 15 days 95.40% ; "The Miao Qianfeng after sowing + paddy grows early days is banned " medical hind prevents effect 9 days to amount to 86.45% , medical hind prevents effect 15 days to amount to 73.46% ; "Cauline leaf is handled + paddy grows early days is banned " medical hind prevents effect 9 days 81.46% , medical hind prevents effect 15 days only 61.78% . No less, heilongjiang saves researcher of perilous peak of king of farming cultivate total bureau to point out, paddy transplant cropland also closes with soil give priority to, it is with sparge of leaf of the bine after the seedling complementary.
Zhejiang saves Yao Xiaoming of section chief of division of prevention and cure of bureau of plant protection quarantine to introduce, rice field of Zhejiang province direct seeding weeds mode is main " one inside front cover is killed 3 fill " , " 2 front cover fill " , " kill 2 fill or kill fill " 3 kinds of mode. "One inside front cover is killed 3 fill " it is to be after direct seeding employ of 2-4 day sparge careless amine of third of · of 36% benzyl Mi, maintain soil wet; Day of the 15-25 after direct seeding, fill according to fireweed circumstance herbicide of the leaf that apply a bine; After direct seeding 30 days, fill according to fireweed circumstance herbicide of the leaf that apply a bine.
"2 front cover fill " be scatter before sow apply 60% Ding Cao amine, field defend shallow water; Day of the 2-4 after direct seeding soil conservation is wet, gush applies careless amine of third of · of 36% benzyl Mi; Day of the 20-30 after direct seeding, fill according to fireweed circumstance herbicide of the leaf that apply a bine; "Kill 2 fill or kill fill " be in day of the 15-25 after direct seeding, gush applies cauline leaf herbicide, fill according to fireweed circumstance herbicide of the leaf that apply a bine.
Medical effect is bad, perhaps be to did not keep away from these pain spot that use drug
In producing a course, use drug relatively blind, too depend on pesticide agency to recommend wait for a problem to exist all the time, and relatively serious. Not system, unscientific bring about fireweed to fight a gender to increase with medicine, increase the vicious circle of formulation rate then.
Huang Jing of minister of ministry of sale of limited company of engineering of live thing of Anhui numerous country points out, in area of early rice of lake of hole front courtyard, close the pain spot that use drug basically is the fireweed such as felt of grass of the barnyard grass that fight a gender, ox hair is not sealed, vivacious fireweed closes the effect not beautiful, convention closes drug accuses gramineous period finite. Prophylaxis and treatment of grass of barnyard grass of cauline leaf processing is not proper, easy recrudesce, follow-up bud is serious, a variety of drug are mixed match, with medical lay particular stress on, bring about paddy to send crude drug easily to kill.
Area of early rice of annulus Po Yang Hu, close processing is given priority to with barnyard grass grass and duck tongue grass, barnyard grass grass produces an amount big, give gramineous period long, not the rule; Prophylaxis and treatment of grass of barnyard grass of cauline leaf processing is not proper, recrudescent circumstance is more, follow-up bud is serious, barnyard grass grass and paddy Xie Ling comparative, send crude drug easily to kill.
Semilate rice of area of another name for Hubei province of Hunan another name for Jiangxi Province is in close when processing, in order to insignificant careless, thousand gold, different nutgrass flatsedge and duck tongue grass are given priority to, fireweed comes up out of land time is long mix hair is serious, there still is fireweed to last after closing bud, standing grain of family name of barnyard grass grass, paddy plum do not seal; Prophylaxis and treatment of grass of barnyard grass of cauline leaf processing is not proper, recrudescent circumstance is much, fireweed follow-up bud is serious,
Cropland of direct seeding of water of Su Wan semilate rice seals the fireweed such as grass of the egg of a louse when shutting processing, blue barnyard grass to be not sealed, there still is fireweed shoot after closing, convention closes drug accuses gramineous period finite; Prophylaxis and treatment of grass of barnyard grass of cauline leaf processing is not proper, continuously bud, recrudescent circumstance is much, difficult prevent and kill off of standing grain of paddy plum family name, Shui Zhuxie,
Rice field of direct seeding of drought of catchment of river the Huaihe River closes the paddy when processing sprouts fast, close drug hurts a young plant easily, field fireweed cardinal number is large, give gramineous period long, medical film is not stable; The Ma Tang when the processing that respect property prevents and cure to have a relapse hard, easily, standing grain of family name of paddy of wild millet, random grass, fireweed, paddy plum lacks effective preparation, divide hard in case.
Late rice of area of Hunan another name for Jiangxi Province is in close when using drug, air temperature tall, fireweed comes up out of land fast, close not seasonable, partial perennial is not a seed to breed fireweed cannot close, barnyard grass grass closes hard prevent and kill off; Heterodyne of copy of careless, thousand gold insignificants when cauline leaf is handled, jie of existence of commonly used drug combats a problem, paddy sends crude drug easily to kill.
Drug
Note
Grand of Bi Mi sulphur
Dosage cannot too tall, hurt bud easily, high temperature sends medicine easily to kill
Fourth careless amine
Cannot mix directly paddy bud contact, attention leaching medicine is killed, microtherm seeper sends crude drug easily to kill
Third careless amine
Prevent to accumulate aquatic product crude drug to kill, keep field and wet not dehydration
Cyanogen fluorine careless ester
Mix Niao of acyl matching sulphur kind fight action in order to produce Jie, prevent air temperature to change suddenly generation influence
Careless amine of evil Zun acyl
Easy occurrence medicine is killed when microtherm Xiaomiao
Double careless aether
Notice microtherm medicine is killed, exceed a quantity to use a risk
Careless amine of 5 fluorine sulphur
Prevent effect to drop to grass of big barnyard grass
2 chloroquine Lin is acerbity
Drug is used after 3 leaves, notice mu of dosage
Pyrimidine oxime careless aether
The attention uses medical period and dosage
He Cao of evil Zun of essence of life is clever
The attention uses the precipitation after medical period, dosage, medicine and backwater
2 armour the fifth of the ten Heavenly Stem is clever
Sex of adsorption of relative safety, soil is good, relatively be able to bear or endure arid
The rice field uses drug note (according to numerous country live thing Huang Jing PPT is arranged)
In recent years drug-fast fireweed distributings much, degree weighs wide, sort, the loss is big. The rice field weeds should accomplish science to use herbicide, promotion herbicide is inchoate processing, mix with herbicide, add synergist, the research and development that makes good herbicide new breed and promotion. The basis carries out experience, xiao Ming of Yao of division of prevention and cure of bureau of quarantine of Zhejiang province plant protection's section chief is summed up, the rice field weeds should have done the following 33 words:
Safety first, prevent effect the 2nd;
Seal word pawn, weed active;
Cropland n is whole, pay attention to defend water;
Pay attention to a technology, fly preventing is a trend.
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