CN109938042A - A kind of sorghum field chemical weed control seed coat agent and herbicidal methods - Google Patents

A kind of sorghum field chemical weed control seed coat agent and herbicidal methods Download PDF

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CN109938042A
CN109938042A CN201910338585.0A CN201910338585A CN109938042A CN 109938042 A CN109938042 A CN 109938042A CN 201910338585 A CN201910338585 A CN 201910338585A CN 109938042 A CN109938042 A CN 109938042A
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agent
sorghum
seed
seed coat
weed control
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CN109938042B (en
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王金萍
吕芃
段胜军
籍贵苏
刘建云
杜瑞恒
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Shijiazhuang jinlugu Agricultural Products Trading Co.,Ltd.
Grain Research Institute of Hebei Academy of Agriculture and Forestry Sciences
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Grain Research Institute of Hebei Academy of Agriculture and Forestry Sciences
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Abstract

The present invention relates to a kind of sorghum field chemical weed control seed coat agent and herbicidal methods, sorghum seeds are coated according to the fluxofenim of doses and other collaboration ingredients, it is absorbed into Seed Germination in vivo, degree of can speed up is metabolized isopropyl methoxalamine in seed body, harm of the isopropyl methoxalamine to sorghum seedling is released, seedling normal growth is made;And annual gramineous weed and part broadleaf weeds in soil, such as herba eleusines indicae, herba digitariae, semen euphorbiae, herba setariae viridis, three-coloured amaranth, purslane, when sprouting, absorb isopropyl methoxalamine, inhibit the synthesis of weeds protein and dead.The herbicidal methods economy, efficiently, grows safety to sorghum, and plays the role of strong sprout.

Description

A kind of sorghum field chemical weed control seed coat agent and herbicidal methods
Technical field
The present invention relates to a kind of sorghum field chemical weed control seed coat agent and herbicidal methods, belong to sorghum seeds processing and field Weeding technique field.
Background technique
Sorghum【Sorghum bicolor (L.) Moench】It is the fifth-largest cereal crops in the world, in Africa, Asia, drawing It plants extensively on the ground such as fourth America.Sorghum is in existing more than 5000 years cultivation histories of China, and in the five, sixties, sorghum is in China Plantation extensively, is northern main food.Sorghum is wine brewing, makes vinegar primary raw material, and China sorghum cultivated area is 10,000,000 at present Mu or so, with brewing with based on sorghum.Modern scientific research show tannin in sorghum and resistant starch beneficial to human health, it is right Obesity, diabetes, hyperlipidemia chronic diseases have dietary function, therefore edible sorghum will be sorghum developing direction.
Sorghum gramineous crop, weeds in field is based on gramineae weed, and habit is identical as sorghum, jowar pair Herbicide is very sensitive, and sorghum field does not have safe and efficient chemical herbicide so far.Before 2010, sorghum is with family's small area Based on plantation, manually weeding;In recent years, agricultural planting structure changes, the large-scale planting based on cooperative society, it is few then Several hundred mus, more mus then up to ten thousand, chemical weed control have become the great difficult problem for restricting sorghum production.Sorghum that is current to produce, using Field herbicide after seedling has atrazine, dichloro quinolinic acid, dimethyl tetrachloride, and herbicide before seedling stage has prometryn, isopropyl methoxalamine, these are removed Careless agent is mostly applied on corn, rice.Since resistance of the sorghum to these herbicides is poor, can only low dosage use, but weeding imitate Fruit is bad;High dose uses, and serious phytotoxicity can occur for sorghum.Meanwhile also there are stringent limitation, otherwise, weeding on spraying time Effect is bad.Isopropyl methoxalamine is efficient, safe, economic herbicide, in dicotyledonous crops such as soybean, peanut, some vegetables It is upper to use extensively.Isopropyl methoxalamine and atrazine spray weeding before being blended in Sorghum Seedlings, have a small amount of peasant to use.In arid and semi-arid Area, jowar field spray isopropyl methoxalamine, and rainfall is encountered before 5 leaf of jowar seedling, and seedling can grow normally;But in moist south Side, after spraying isopropyl methoxalamine, encounters rainfall, seedling leaf can distort metamorphosis, and serious phytotoxicity, Bu Nengsheng occurs before 5 leaf of jowar seedling Length leads to death of seedling, causes Severe Reduction.
Current many jowar experts study for sorghum weeding problem, it is intended to novel sorghum herbicide is filtered out, though Right some new medicaments are tried out in sorghum production, but herbicidal effect is bad.Find the safe and efficient chemistry of sorghum field Herbicidal methods are the hopes that many sorghum growers dream of to solve the problems, such as control of weeds in sorghum large-scale planting.
Summary of the invention
It is an object of the invention to overcome defect existing in the prior art, provide a kind of suitable for isopropyl methoxalamine chemistry The sorghum seed coat agent of weeding, and efficient, safe, economic sorghum field chemical weed control method is provided simultaneously.
To achieve the above object, the technical solution adopted in the present invention is as follows:
On the one hand, the present invention provides a kind of sorghum field chemical weed control seed coat agents comprising fluxofenim, microelement, desinsection Agent, fungicide, dispersing agent, film forming agent, thickener, antifreezing agent, defoaming agent and water.
Further, 2, a kind of sorghum field chemical weed control seed coat agent according to claim 1, which is characterized in that It include fluxofenim 1.5 ~ 2.5%, microelement 0.16 ~ 0.24%, insecticide 2.5 ~ 3.5%, fungicide 4 ~ 6%, dispersing agent 0.8 ~ 1.2%, film forming agent 0.2 ~ 0.4%, thickener 0.6 ~ 1.0%, antifreezing agent 0.08 ~ 0.12%, defoaming agent 0.07 ~ 0.13% and excess water.
Further comprising fluxofenim 2%, microelement 0.2%, insecticide 3%, fungicide 5%, dispersing agent 1%, film forming Agent 0.3%, thickener 0.8%, antifreezing agent 0.1%, defoaming agent 0.1% and excess water.
Further, the microelement is zinc sulfate;
The insecticide is imidacloprid;
The fungicide is selected from carbendazim;
The dispersing agent is NN0;
The film forming agent is selected from polyvinyl alcohol or polyethylene glycol;
The thickener is xanthan gum;
The antifreezing agent is selected from ethylene glycol or glycerine;
The defoaming agent is TD-135.
Further, the sorghum field chemical weed control seed coat agent include fluxofenim 2%, zinc sulfate 0.2%, insecticide 3%, Imidacloprid 5%, NND 1%, polyvinyl alcohol 0.3%, xanthan gum 0.8%, ethylene glycol 0.1%, defoaming agent TD-135 0.1% and excess water.
On the other hand, the present invention provides a kind of sorghum field chemical weed control methods, by handling sorghum with above-mentioned seed coat agent After seed, sowing sprays isopropyl methoxalamine before emergence.
Further, specifically comprise the following steps:
(1) seed coat agent prepares: first being ground microelement, insecticide, fungicide with grinder, by dispersing agent, fluxofenim It is added in lapping liquid, sufficiently stirs evenly, add film forming agent, thickener, antifreezing agent, defoaming agent and water, be sufficiently stirred, make various Ingredient is uniformly mixed, and is prepared into the seed coat agent of 2% fluxofenim;
(2) seed treatment: the seed coat agent and sorghum seeds that step (1) is obtained are uniformly mixed according to the ratio of 1:50, and seed is mixed Bored upper 1 hour after good;
(3) seed dries: the seed that step (2) stirs evenly is dried, when seed moisture content drops to 13% or less, and packaging storage It deposits;
(4) sow: when soil moisture content is preferable, fine site preparation, sowing in time step (3) treated seed controls depth of planting, broadcasts After roll reality;
(5) herbicide spray: before after planting emerging, isopropyl methoxalamine is sprayed.
Further, sprinkling atrazine is combined in step (5).
Further, in step (5) isopropyl methoxalamine fountain height are as follows: per acre with 72% isopropyl methoxalamine 100ml, be watered 45kg is uniformly sprayed.
Further, the dosage of atrazine is 100ml/ mus of 38% atrazine in step (5).
The beneficial effects of adopting the technical scheme are that
Seed coat agent provided by the present invention can accelerate the metabolism of the isopropyl methoxalamine absorbed when sorghum seeds are sprouted, so that sorghum The synthesis of seedling protein is not inhibited.Sorghum field sprays a certain amount of isopropyl methoxalamine, and sorghum can be metabolized after absorbing, and sorghum is raw It is long normal.Certain microelement is added in seed coat agent and cooperates with the tolerance for improving jowar to isopropyl methoxalamine, coated height Fine strain of millet field sprays a certain amount of isopropyl methoxalamine, reduces sorghum seedling phytotoxicity incidence.
Herbicidal methods provided by the present invention have following advantage:
1. safety: the sorghum seeds handled through seed coat agent, the preceding isopropyl methoxalamine of after planting emerging is good to sorghum field Weed-control effect, Safety, will not occur key;Sorghum seeds are handled without seed coat agent, isopropyl methoxalamine is sprayed before after planting emerging, meet rain sorghum Seedling distortion, is unable to normal growth, serious to have no harvest.
2. preventive effect is good: sorghum herbicide is used at present, it is bad there is herbicidal effect or easily phytotoxicity occurs, it removes after seedling Careless agent is 70% to Weed-control effect, and herbicidal effect is undesirable.Isopropyl methoxalamine and atrazine are used cooperatively, and are handled through seed coat agent Sorghum field, weed control efficacy reach 90% or more, phytotoxicity will not occur.
3. economical: sorghum herbicide 18-25 member/mu of market sale, isopropyl methoxalamine and atrazine mixe herbicide 15 Member/mu, mu section prop up 5 yuan or more, only use in growth stages of sorghum 1 time.
4. volume increase: the Sorghum Seedlings handled through seed coat agent are sturdy, leaf color is green, grow vigorous, 5% or more mu volume increase.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, invention is carried out combined with specific embodiments below Clear, complete description.
1 seed coat agent preparation method of embodiment
Following raw material by weight percent: 2% fluxofenim, 0.2% zinc sulfate, 3% imidacloprid, 5% carbendazim, 1% NND, 0.3% polyvinyl alcohol, 0.8% xanthan gum, 0.1% ethylene glycol, 0.1% TD-135 defoaming agent and water are prepared into 2% Fluxofenim seed coat agent.The specific method is as follows: first being ground zinc sulfate, imidacloprid, carbendazim with grinder, fineness 2- The fluxofenim missible oil of dispersing agent NNO, 96% are added in lapping liquid, sufficiently stir evenly by 4um, add polyvinyl alcohol, xanthan gum, Ethylene glycol, defoaming agent TD-135 and water are sufficiently stirred 30 minutes, are uniformly mixed various composition, use to seed pelleting.
2 seed coat agent preparation method of embodiment
Following raw material by weight percent: 1.5% fluxofenim, 0.24% zinc sulfate, 2.5% imidacloprid, 4% carbendazim, 1.2% NND, 0.2% polyvinyl alcohol, 1.0% xanthan gum, 0.12% ethylene glycol, 0.07% TD-135 defoaming agent and water system For at 1.5% fluxofenim seed coat agent.The specific method is as follows: first zinc sulfate, imidacloprid, carbendazim are ground with grinder, Fineness is 2-4um, and the fluxofenim missible oil of dispersing agent NNO, 96% are added in lapping liquid, sufficiently stirs evenly, adds polyethylene Alcohol, xanthan gum, ethylene glycol, defoaming agent TD-135 and water are sufficiently stirred 30 minutes, are uniformly mixed various composition, to kind of an attached bag Clothing uses.
3 seed coat agent preparation method of embodiment
Following raw material by weight percent: 2.5% fluxofenim, 0.16% zinc sulfate, 3.5% imidacloprid, 6% carbendazim, 0.8% NND, 0.4% polyvinyl alcohol, 0.6% xanthan gum, 0.08% ethylene glycol, 0.13% TD-135 defoaming agent and water system For at 2.5% fluxofenim seed coat agent.The specific method is as follows: first zinc sulfate, imidacloprid, carbendazim are ground with grinder, Fineness is 2-4um, and the fluxofenim missible oil of dispersing agent NNO, 96% are added in lapping liquid, sufficiently stirs evenly, adds polyethylene Alcohol, xanthan gum, ethylene glycol, defoaming agent TD-135 and water are sufficiently stirred 30 minutes, are uniformly mixed various composition, to kind of an attached bag Clothing uses.
4 seed coat agent preparation method of embodiment
Following raw material by weight percent: 2% fluxofenim, 0.18% zinc sulfate, 2.6% imidacloprid, 4.5% carbendazim, 0.9% NND, 0.3% polyvinyl alcohol, 0.9% xanthan gum, 0.11% ethylene glycol, 0.1% TD-135 defoaming agent and water system For at 2% fluxofenim seed coat agent.The specific method is as follows: first being ground zinc sulfate, imidacloprid, carbendazim with grinder, carefully Degree be 2-4um, the fluxofenim missible oil of dispersing agent NNO, 96% are added in lapping liquid, sufficiently stirred evenly, add polyvinyl alcohol, Xanthan gum, ethylene glycol, defoaming agent TD-135 and water are sufficiently stirred 30 minutes, are uniformly mixed various composition, make to seed pelleting With.
The sufficient moisture in the soil spring sowing sorghum single herbicide weeding scheme of embodiment 5
1000 kilograms of Jis are taken to make No. 2 seeds, with 20 kilograms of the configured seed coat agent containing 2% fluxofenim of embodiment 1, by medicine: planting It for 1:50, is coated, concrete operations are as follows: by 20 kilograms of seed coat agents, slowly pouring into 1000 kilograms of sorghum seeds, side bevelling stirs It mixes, until seed and seed coat agent are mixed evenly, seed is mixed bored 1 hour latter.
The Ji stirred evenly No. 2 sorghum seeds of wine are dried on Liang Chang, seed is often stirred during sunning, is avoided It is exposed to the sun for a long time, prevents protective agent from failing.Product sale is taken in storehouse or is packaged into when seed moisture content drops to 13% or less.
Spring sowing area, front and back sowing on May 1.When soil moisture content is suitable for, sorghum field weed is with annual gramineous weed It is main, before after planting emerging, sorghum field weed is prevented and treated using isopropyl methoxalamine.By with 72% isopropyl methoxalamine 100ml, being watered per acre 45kg, mixing spray, and can prevent and treat sorghum field annual gramineous weed.
Effect: sorghum seedling occurs without phytotoxicity phenomenon, and the preventive effect of sorghum field annual gramineous weed is obvious.
Embodiment 6, which is sowed in spring, does adopted son Ji No. 2 sorghum single herbicide weeding schemes of wine
No. 2 seeds are made into 1000 kilograms of Jis, with the configured seed coat agent 20kg for containing 2% fluxofenim of embodiment 1, by medicine: planting is 1: 50, it is coated, stirs evenly, wrap up seed coat agent sufficiently onto sorghum seeds, seed is mixed bored 1 hour latter.
The Ji stirred evenly No. 2 sorghum seeds of wine are dried on Liang Chang, seed is often stirred during sunning, is avoided It is exposed to the sun for a long time, prevents protective agent from failing.When seed moisture content drops to 13% or less, it is packaged into sale product.
Northern spring sowing area realizes the rain emergence such as dry adopted son's sowing area, and sorghum field weed is with annual gramineous weed It is main, after planting, front and back of raining, before weeds are not unearthed, isopropyl methoxalamine is used, prevents and treats sorghum field weed, by different with 72% per acre Methoxalamine 100ml is watered 45kg, and mixing sprays, and can prevent and treat sorghum field annual gramineous weed.
Effect: sorghum seedling occurs without phytotoxicity phenomenon, and the preventive effect of sorghum field annual gramineous weed is obvious.
Make No. 2 sorghum single herbicide weeding schemes in 7 summer sowing Ji of embodiment
No. 2 seeds are made into 1000 kilograms of Jis, with configured 20 kilograms of the seed coat agent for containing 2% fluxofenim of embodiment 1, by medicine: kind is 1:50 is coated, and is stirred evenly, and wraps up seed coat agent sufficiently onto sorghum seeds, and seed is mixed bored 1 hour latter.
The Ji stirred evenly No. 2 sorghum seeds of wine are dried on Liang Chang, seed is often stirred during sunning, is avoided It is exposed to the sun for a long time, prevents protective agent from failing.When seed moisture content drops to 13% or less, it is packaged into sale product.
Stubble-cleaning after the wheat harvest of summer sowing area, sowing when robbing were sowed before June 20, poured cover-head water immediately, and field is with annual standing grain Based on undergraduate course weeds, isopropyl methoxalamine can be used after watering in 2 days, prevent and treat sorghum field weed, by per acre with 72% isopropyl first Careless amine 100ml is watered 45kg, and mixing sprays, and can prevent and treat sorghum field annual gramineous weed.
Effect: sorghum seedling occurs without phytotoxicity phenomenon, and the preventive effect of sorghum field annual gramineous weed is obvious.
8 gramineae weed of embodiment and broadleaf weeds have plot sorghum field herbicidal weeding scheme concurrently
No. 2 seeds are made into 1000 kilograms of Jis, with configured 20 kilograms of the seed coat agent for containing 2% fluxofenim of embodiment 1, by medicine: kind is 1:50 is coated, and is stirred evenly, and wraps up seed coat agent sufficiently onto sorghum seeds, and seed is mixed bored 1 hour latter.
The Ji stirred evenly No. 2 sorghum seeds of wine are dried on Liang Chang, seed is often stirred during sunning, is avoided It is exposed to the sun for a long time, prevents protective agent from failing.When seed moisture content drops to 13% or less, it is packaged into sale product.
This area field gramineae weed and broadleaf weeds are more, and sorghum after planting, before emergence, sprays isopropyl methoxalamine It is watered 45kg by per acre with 72% isopropyl methoxalamine 100ml, 38% atrazine 100ml with two kinds of herbicides of atrazine, is mixed Spray sorghum field.Equal rain sow sorghum field, are administered in 3 days before rain or after rain;The sorghum field of cover-head water is poured in summer sowing, 2 days after watering Interior application.
Effect: sorghum seedling occurs without phytotoxicity phenomenon, and sorghum field annual gramineous weed and broadleaf weeds prevent and kill off effect Fruit is obvious.
Comparative example 1
Following raw material by weight percent: 0.2% zinc sulfate, 3% imidacloprid, 5% carbendazim, 1% NND, 0.3% Polyvinyl alcohol, 0.8% xanthan gum, 0.1% ethylene glycol, 0.1% TD-135 defoaming agent and water be prepared into 2% fluxofenim kind clothing Agent.The specific method is as follows: first being ground zinc sulfate, imidacloprid, carbendazim with grinder, fineness 2-4um, by dispersing agent NNO is added in lapping liquid, is sufficiently stirred evenly, and adds polyvinyl alcohol, xanthan gum, ethylene glycol, defoaming agent TD-135 and water, sufficiently Stirring 30 minutes is uniformly mixed various composition, uses to seed pelleting.
Comparative example 2
Following raw material by weight percent: 2% fluxofenim, 3% imidacloprid, 5% carbendazim, 1% NND, 0.3% it is poly- Vinyl alcohol, 0.8% xanthan gum, 0.1% ethylene glycol, 0.1% TD-135 defoaming agent and water be prepared into 2% fluxofenim kind clothing Agent.The specific method is as follows: first being ground imidacloprid, carbendazim with grinder, fineness 2-4um, by dispersing agent NNO, 96% Fluxofenim missible oil be added in lapping liquid, sufficiently stir evenly, add polyvinyl alcohol, xanthan gum, ethylene glycol, defoaming agent TD-135 And water, it is sufficiently stirred 30 minutes, is uniformly mixed various composition, used to seed pelleting.
Comparative example 3
Following raw material by weight percent: 3% fluxofenim, 0.2% zinc sulfate, 3% imidacloprid, 5% carbendazim, 1% NND, 0.3% polyvinyl alcohol, 0.8% xanthan gum, 0.1% ethylene glycol, 0.1% TD-135 defoaming agent and water are prepared into 3% Fluxofenim seed coat agent.The specific method is as follows: first being ground zinc sulfate, imidacloprid, carbendazim with grinder, fineness 2- The fluxofenim missible oil of dispersing agent NNO, 96% are added in lapping liquid, sufficiently stir evenly by 4um, add polyvinyl alcohol, xanthan gum, Ethylene glycol, defoaming agent TD-135 and water are sufficiently stirred 30 minutes, are uniformly mixed various composition, use to seed pelleting.
Comparative example 4
Following raw material by weight percent: 1% fluxofenim, 0.2% zinc sulfate, 3% imidacloprid, 5% carbendazim, 1% NND, 0.3% polyvinyl alcohol, 0.8% xanthan gum, 0.1% ethylene glycol, 0.1% TD-135 defoaming agent and water are prepared into 1% Fluxofenim seed coat agent.The specific method is as follows: first being ground zinc sulfate, imidacloprid, carbendazim with grinder, fineness 2- The fluxofenim missible oil of dispersing agent NNO, 96% are added in lapping liquid, sufficiently stir evenly by 4um, add polyvinyl alcohol, xanthan gum, Ethylene glycol, defoaming agent TD-135 and water are sufficiently stirred 30 minutes, are uniformly mixed various composition, use to seed pelleting.
Effect example
The seed coat agent that No. 2 sorghum seeds embodiments 1 are made in Ji, comparative example 1 ~ 4 configures is taken, respectively by medicine: planting as 1:50, wrapped Clothing stirs evenly, and wraps up seed coat agent sufficiently onto sorghum seeds, and seed is mixed bored 1 hour latter.
The Ji stirred evenly No. 2 sorghum seeds of wine are dried on Liang Chang, seed is often stirred during sunning, is avoided It is exposed to the sun for a long time, prevents protective agent from failing.When seed moisture content drops to 13% or less, package spare.
Field is divided into the experimental field of 9 size equalizations, is divided into 9 groups, every piece of experimental field is one group, wherein one group of sowing water For the seed of processing as clear water check plot, remaining 8 groups are used as processing group, sow the processing of embodiment 1 ~ 4, comparative example 1-4 respectively Sorghum kind 10g (about 400-500, about emerge 300-400 plants) afterwards, 2 days after watering, sprays isopropyl methoxalamine and green bristlegrass is gone Two kinds of herbicides of saliva are watered 45kg/ mus, mixing sprays height with 100ml/ mus of+38% atrazine of 72% isopropyl methoxalamine 100ml/ mu Fine strain of millet field counts weeds strain number and sick seedling strain number after emergence 7 days, investigates Sorghum Seedlings security situation and Weed-control effect, be specifically shown in Table 1:
Preventive effect (%)=(clear water check plot grass strain number-processing group grass strain number)/clear water check plot grass strain number
1 effect of table
Finally, it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations;Although reference Invention is explained in detail for previous embodiment, those skilled in the art should understand that: it still can be right Technical solution documented by previous embodiment is modified or equivalent replacement of some of the technical features;And these It modifies or replaces, the spirit and scope for technical solution of the embodiment of the present invention that it does not separate the essence of the corresponding technical solution.

Claims (10)

1. a kind of sorghum field chemical weed control seed coat agent, which is characterized in that it includes fluxofenim, microelement, insecticide, sterilization Agent, dispersing agent, film forming agent, thickener, antifreezing agent, defoaming agent and water.
2. a kind of sorghum field chemical weed control seed coat agent according to claim 1, which is characterized in that it includes fluxofenim 1.5 ~ 2.5%, microelement 0.16 ~ 0.24%, insecticide 2.5 ~ 3.5%, fungicide 4 ~ 6%, dispersing agent 0.8 ~ 1.2%, film forming agent 0.2 ~ 0.4%, thickener 0.6 ~ 1.0%, antifreezing agent 0.08 ~ 0.12%, defoaming agent 0.07 ~ 0.13% and excess water.
3. a kind of sorghum field chemical weed control seed coat agent according to claim 1, which is characterized in that it includes fluxofenim 2%, microelement 0.2%, insecticide 3%, fungicide 5%, dispersing agent 1%, film forming agent 0.3%, thickener 0.8%, antifreezing agent 0.1%, Defoaming agent 0.1% and excess water.
4. a kind of sorghum field chemical weed control seed coat agent according to claim 1, it is characterised in that:
The microelement is zinc sulfate;
The insecticide is imidacloprid;
The fungicide is selected from carbendazim;
The dispersing agent is NN0;
The film forming agent is selected from polyvinyl alcohol or polyethylene glycol;
The thickener is xanthan gum;
The antifreezing agent is selected from ethylene glycol or glycerine;
The defoaming agent is TD-135.
5. a kind of sorghum field chemical weed control seed coat agent according to claim 1, which is characterized in that the sorghum field chemistry Weeding seed coat agent includes fluxofenim 2%, zinc sulfate 0.2%, imidacloprid 3%, carbendazim 5%, NND 1%, polyvinyl alcohol 0.3%, Huang Virgin rubber 0.8%, ethylene glycol 0.1%, defoaming agent TD-135 0.1% and excess water.
6. a kind of sorghum field chemical weed control method, which is characterized in that by at the described in any item seed coat agents of claim 1 ~ 4 After managing sorghum seeds, sowing sprays isopropyl methoxalamine before emergence.
7. a kind of sorghum field chemical weed control method according to claim 6, which is characterized in that specifically comprise the following steps:
(1) seed coat agent prepares: first being ground microelement, insecticide, fungicide with grinder, by dispersing agent, fluxofenim It is added in lapping liquid, sufficiently stirs evenly, add film forming agent, thickener, antifreezing agent, defoaming agent and water, be sufficiently stirred, make various Ingredient is uniformly mixed, and is prepared into the seed coat agent of 2% fluxofenim;
(2) seed treatment: the seed coat agent and sorghum seeds that step (1) is obtained are uniformly mixed according to the ratio of 1:50, and seed is mixed Bored upper 1 hour afterwards;
(3) seed dries: the seed that step (2) stirs evenly is dried, when seed moisture content drops to 13% or less, and packaging storage It deposits;
(4) sow: when soil moisture content is preferable, fine site preparation, sowing in time step (3) treated seed controls depth of planting, broadcasts After roll reality;
(5) herbicide spray: before after planting emerging, isopropyl methoxalamine is sprayed.
8. a kind of sorghum field chemical weed control method according to claim 7, which is characterized in that combine spray in step (5) Spill atrazine.
9. a kind of sorghum field chemical weed control method according to claim 7, which is characterized in that isopropyl first grass in step (5) The fountain height of amine are as follows: per acre with 72% isopropyl methoxalamine 100ml, be watered 45kg, uniformly spray.
10. a kind of sorghum field chemical weed control method according to claim 7, which is characterized in that atrazine in step (5) Dosage is 100ml/ mus of 38% atrazine.
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