CN107711830A - A kind of method for preventing and treating direct sowing rice weed - Google Patents
A kind of method for preventing and treating direct sowing rice weed Download PDFInfo
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- CN107711830A CN107711830A CN201710118587.XA CN201710118587A CN107711830A CN 107711830 A CN107711830 A CN 107711830A CN 201710118587 A CN201710118587 A CN 201710118587A CN 107711830 A CN107711830 A CN 107711830A
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N25/00—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests
- A01N25/12—Powders or granules
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G13/00—Protecting plants
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N25/00—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests
- A01N25/30—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests characterised by the surfactants
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N37/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids
- A01N37/18—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids containing the group —CO—N<, e.g. carboxylic acid amides or imides; Thio analogues thereof
- A01N37/22—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids containing the group —CO—N<, e.g. carboxylic acid amides or imides; Thio analogues thereof the nitrogen atom being directly attached to an aromatic ring system, e.g. anilides
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N39/00—Biocides, pest repellants or attractants, or plant growth regulators containing aryloxy- or arylthio-aliphatic or cycloaliphatic compounds, containing the group or, e.g. phenoxyethylamine, phenylthio-acetonitrile, phenoxyacetone
- A01N39/02—Aryloxy-carboxylic acids; Derivatives thereof
- A01N39/04—Aryloxy-acetic acids; Derivatives thereof
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N47/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid
- A01N47/08—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid the carbon atom having one or more single bonds to nitrogen atoms
- A01N47/28—Ureas or thioureas containing the groups >N—CO—N< or >N—CS—N<
- A01N47/30—Derivatives containing the group >N—CO—N aryl or >N—CS—N—aryl
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N47/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid
- A01N47/08—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid the carbon atom having one or more single bonds to nitrogen atoms
- A01N47/28—Ureas or thioureas containing the groups >N—CO—N< or >N—CS—N<
- A01N47/36—Ureas or thioureas containing the groups >N—CO—N< or >N—CS—N< containing the group >N—CO—N< directly attached to at least one heterocyclic ring; Thio analogues thereof
Abstract
The present invention relates to a kind of method for preventing and treating direct sowing rice weed, when methods described is that water layer keeps 3 4.5cm in rice field, the big granula of following weeding is shed, each component is by weight：Herbicide：10‑25；Surfactant：1‑25；Oily matter：2‑30；White carbon：1‑10；Solid core core material：10‑80；KCl：1‑30；The surfactant is that weight ratio is 1:20‑30:1 sulfonate lignin and the complexed surfactant of APES；The oily matter is that weight ratio is 1:10‑20:1 mineral oil and the compound oily matter of vegetable oil.The present invention is by selecting specific surfactant, and when particularly it is combined in certain proportion, its dispersiveness greatly reinforces, and diffusion velocity is fast, and more than 1.4m/min, active ingredient loss is down to less than 5%；And by selecting compound oily matter, its persistence improves at least 20% compared with prior art, there is preferable production application value.
Description
Technical field
The present invention relates to agricultural technology field, and in particular to the technical field of controlling weeds, it is live more particularly to preventing and treating
The method of weeds in paddy field.
Background technology
The cultivation of existing rice field be generally divided into Direct sowing rice field, dry seeded rice field, rice seedling bed and transplanting rice field these four not
Same planting type, how the weeds effectively prevented and treated in these four rice fields are the field problem encountered at present.
Wherein direct sowing of rice technology refers to directly for seed to be seeded in the planting patterns cultivated in crop field.According to the soil water
The irrigation method divided before and after situation and sowing, Direct-seeding Rice can be divided into four kinds of water direct seeding, direct-sowing dry, wet direct-seeding and drought kind rice etc. again
Type, water direct seeding and direct-sowing dry are using relatively broad at present.Rice is that a kind of one of most wide crop, total growing surface are planted by China
Product reaches 4.5 hundred million mu.Compared compared to traditional transplanting rice seedling by hand, there is saving of labor, laborsaving, labor productivity is high；So
And due to the process of no secondary rice transplanting, the weeds in direct sowing rice field occur compared to other several rice fields cultivations it is more universal, by
In traditional spray of going to the field, mix soil and mix the weeding system that spreads fertilizer over the fields of fertilizer generally both for traditional transplanting rice seedling by hand mode, do not examine
Consider in this special planting type of direct sowing rice field for the demand of weeding.
Retrieval of the applicant Jing Guo system, do not find that prior art has any method for being related to preventing and treating direct sowing rice weed,
Only fragmentary concern direct sowing rice field high yield cultivating method, such as Chinese patent 201510237368.4（Rice direct seeding high yield is planted
Culture method）, in the prior art, it is solely focused on and how solves the problems, such as the production of direct sowing of rice cultivation technique, not to cultivation
During the preventing and treatings of weeds illustrate.
Existing preventing and treating direct sowing rice weed is typically manually sprayed insecticide, and it has the disadvantage that：1st, waste time and energy, lead to
For often, during the plantation of whole rice, it is necessary to using 2-4 herbicide, it is 5-10 members that every mu of single, which manually applies cost,；
2nd, the through target of medicament sprayed is poor, artificial sprinkling, it may appear that a part of floating in the air with the wind, is sprayed to the feelings such as crop leaf
Shape, only about 60-75% can reach target, add using cost.
On herbicide, existing herbicide for paddy field is prepared granulating agent and broadcasted sowing mostly, and applicant itself is to rice
Field Agrotechnical formulation has done more research, such as 201310710822.4（A kind of big granula of paddy field weed-killer and preparation method thereof）, it is public
Open and mixed herbicide pretilachlor, pyrazosulfuron etc. with auxiliary agents such as alkylamide APEO, phenyl phenol polyethenoxy ethers
Big granula is made；201410670721.3（A kind of big granula of paddy field weed-killer containing pyrazosulfuron and dichloro quinolinic acid）, disclose
Big granula will be mixed to prepare containing the auxiliary agent such as above-mentioned active component and surfactant, oily matter, solid core core material；
201610290446.1（It is a kind of to prevent and treat rice sheath blight disease and big granula of composition floating of rice blast and preparation method thereof）Equally
And disclose the big granula being mixed to prepare containing auxiliary agents such as active component, dispersant, spreading agents；But applicant passes through the later stage
Considerable research finds that its big granula previously developed is convenient simultaneously in the dispersiveness, stability and slow release effect of big granula
It is undesirable, therefore applicant newly develops effect more by adjusting the contents of multiple components and respective components in big granula
Excellent big granule formulations.The characteristics of it is time saving and energy saving when applying that the new big granula has, and the target that goes directly is excellent.
It is an object of the invention to provide a variety of weeds in a kind of effectively preventing and treating direct seading rice plantation.Particularly it is equipped with spy
Fixed herbicide formulations, i.e., herbicide formulation is floated into big granula to be prevented and treated into specific rice, realize that effectively preventing and treating is straight
Broadcast the purpose of the weeds in rice field.
The present invention is achieved through the following technical solutions：
A kind of method for preventing and treating direct sowing rice weed, it is characterised in that methods described is that water layer keeps 3-4.5cm in direct sowing rice field
When, the big granula of following weeding is shed, each component is by weight：
Herbicide：10-25；
Surfactant：1-25；
Oily matter：2-30；
White carbon：1-10；
Solid core core material：10-80
KCl：1-30；
The surfactant is that weight ratio is 1:20-30:1 sulfonate lignin and the composite table of APES
Face activating agent；
The oily matter is that weight ratio is 1:10-20:1 mineral oil and the compound oily matter of vegetable oil.
A diameter of 0.1mm to 1mm of the granule.
The big granula of weeding can also be block floating particle agent.
Preferably, in weeds 1-3 leaf phase controlling weeds；
Preferably, water layer keeps 4cm in rice field；
Preferably, the dosage of surfactant is 3-22 parts by weight, more preferably 8-20 parts by weight, most preferably 15-18 weight
Part；
Preferably, in complexed surfactant, the weight ratio of sulfonate lignin and APES is 1:10-15:
1, more preferably 1:3-5:1, most preferably 2:1；
Preferably, the dosage of compound oily matter is 5-25, more preferably 10-20, most preferably 14-16；
Preferably, in compound oily matter, the weight ratio of mineral oil and vegetable oil is 1:5-10:1, more preferably 1:2-4:1, most
Preferably 2:1.
The solid core core material is calcining float stone, calcines vermiculite, obsidian, perlite or glass pearl；Most preferably
Glass pearl.
Herbicide of the present invention is the general herbicide of rice terrace controlling weeds, is preferably：Pretilachlor, cyanogen fluorine grass
Ester, isoproturon, pyrazosulfuron, fenoxaprops, penoxsuam, halosulfuronmethyl or flufenacet or its composition.
When rice field is Direct sowing rice field or rice seedling bed, before the big granula of weeding is shed, Direct sowing rice field or rice seedling bed are done as
Lower pretreatment：
Step 1: pour water：Poured water to harvested crop field, water level is higher than native face 5-10cm；
Step 2: shallow rake, sowing and rotary tillage：After carrying out shallow rake to the crop field through pouring water, rice paddy seed is sowed, is then revolved
Plough；
Step 3: pouring water again and weeding：Poured water again, water layer keeps 3-5cm, sheds the big granula of above-mentioned weeding.
When rice field is dry seeded rice field, before the big granula of weeding is shed, following pretreatment is done to dry seeded rice field：
Step 1：Shallow rake, sowing and rotary tillage：After carrying out shallow rake to crop field, rice paddy seed is sowed, then carries out rotary tillage；
Step 2: pouring water and weeding：Pour water, water layer keeps 3-5cm, sheds the big granula of above-mentioned weeding.
When rice field is transplanting rice field, transplanting, progress is as above poured water and weeding step with dry seeded rice field identical.
On the principle and effect of prevention and controls of the present invention, it is described as follows：
On floating the selection of big granula auxiliary agent：In fact, research floats big granula to applicant always, such as applying in recent years
People is in authorized 201310710822.4 patent, is directed to answering using 16.5% pyrazosulfuron and pretilachlor
Big field weed is prevented and treated with the big granula of floating made from composition, surfactant therein is the alkylamide polyoxy of 3 parts by weight
Vinethene, the phenyl phenol polyethenoxy ether of 5 parts by weight is as surfactant, although having good preventive effect to a variety of weeds,
But in production practices, it has been found that the big granula bad dispersibility of the floating, it is inadequate that it is embodied in through target speed, i.e.,
Diffusion velocity is less than 0.8m/min, and then is being applied to the water surface to when reaching weeds target, its active ingredient loss 10-15%；Shen
Ask someone, by largely studying and groping, to find, by selecting specific surfactant, to be particularly its group in certain proportion
During conjunction, its dispersiveness greatly reinforces, and diffusion velocity is fast, and more than 1.4m/min, active ingredient loss is down to less than 5%；
In addition, applicant has been unexpectedly discovered that, when the specific compound oily matter of selection, particularly the two is answered with specific ratio
Timing, the persistence that big granula is adhered at target more preferably, compared to 201310710822.4 in 16.5% pyrazosulfuron and third grass
For the complex composition of amine, its persistence improves at least 20%.
On water layer height, prior art 5-7cm, present invention selection be 3-4.5cm, and during especially for 4cm, it is active
Component damages are minimum.
Embodiment
In order to deepen the understanding of the present invention, below in conjunction with embodiment, the invention will be further described, these implementations
Example is only used for explaining the present invention, is not intended to limit the scope of the present invention..
First, embodiment is prepared
Prepare embodiment 1：The pretilachlor of the 15 parts by weight white carbon of 8 parts by weight is adsorbed, then the sulfonate wood with 1 parts by weight
After quality, the phenyl phenol polyethenoxy ether of 20 parts by weight, the KCl of 15 parts by weight are well mixed, through airslide disintegrating mill ultramicro grinding
After obtain female powder.It is that glass pearl amounts to 100 by the mineral oil of female powder and 1 parts by weight, the vegetable oil of 10 parts by weight, and surplus
Parts by weight are well mixed, and are transferred in extruding granulation equipment and are granulated, and obtain irregular cylindrical particle, and obtained particle is entered
Row drying, screening, obtain the big granula finished product of pretilachlor weeding that active constituent content is 15% (mass content).
Prepare embodiment 2：Except surfactant is the sulfonate lignin of 20 parts by weight, the phenyl phenol polyoxy of 1 parts by weight
Outside vinethene, remaining is the same as preparation embodiment 1.
Prepare embodiment 3：Except surfactant is the sulfonate lignin of 10 parts by weight, the phenyl phenol polyoxy of 10 parts by weight
Outside vinethene, remaining is the same as preparation embodiment 1.
Prepare embodiment 4：Except surfactant is the sulfonate lignin of 12 parts by weight, the phenyl phenol polyoxy of 6 parts by weight
Outside vinethene, remaining is the same as preparation embodiment 1.
Prepare embodiment 5：Mineral oil except 20 parts by weight, in addition to the mineral oil of 1 parts by weight, remaining is the same as preparing embodiment 4；
Prepare embodiment 6：Mineral oil except 10 parts by weight, in addition to the mineral oil of 5 parts by weight, remaining is the same as preparing embodiment 4；
Prepare embodiment 7：In addition to active component is pyrazosulfuron, remaining is the same as preparation embodiment 6；
Prepare embodiment 8：In addition to active component is tribenuron-methyl, remaining is the same as preparation embodiment 6；
Prepare embodiment 9：In addition to active component is cyhalofop-butyl, remaining is the same as preparation embodiment 6；
Prepare embodiment 10：In addition to active component is isoproturon, remaining is the same as preparation embodiment 6；
Prepare embodiment 11：Except active component is the pretilachlor of 15 parts by weight, in addition to the pyrazosulfuron of 1.5 parts by weight, remaining is the same as real
Apply example 6.
Comparative example 1：In addition to surfactant is sulfonate lignin, remaining is the same as preparation embodiment 11；
Comparative example 2：In addition to surfactant is phenyl phenol polyethenoxy ether, remaining is the same as preparation embodiment 11；
Comparative example 3：In addition to surfactant is alkylamide APEO, remaining is the same as preparation embodiment 11；
Comparative example 4：In addition to surface-active is naphthalenesulfonic acid-formaldehyde condensate, remaining is the same as preparation embodiment 11；
Comparative example 5：Except surface-active is the alkylamide APEOs of 3 parts by weight, the phenyl phenol polyethenoxy ether of 5 parts by weight
Outside, remaining is the same as preparation embodiment 11；
Comparative example 6：In addition to oily matter is the mineral oil of 15 parts by weight, remaining is the same as preparation embodiment 11；
Comparative example 7：In addition to oily matter is the vegetable oil of 15 parts by weight, remaining is the same as preparation embodiment 11.
2nd, the big granula correlated performance embodiment of the present invention
1st, water surface diffusion velocity is tested
（1）Solution and instrument
Running water：Drink level；
Tank：Long 120cm, wide 20cm, high 10cm；Water bath with thermostatic control：(30±2)℃；
Stopwatch.
（2）Water surface diffusion velocity determines
In length × width × height=120cm × 20cm × 10cm tank, running water, water layer height >=2cm are put into；Claim 20mg samples
Product are placed on the water-surface areas on tank top, it is voluntarily spread, while are just spread in the water surface with manual time-keeping, determination sample
Required time during to 1m, parallel determination three times, are averaged.Sample is determined in water surface diffusion velocity v（m/min）；
（3）Determine active ingredient loss rate
Due to floating, it into metabolic system by playing a part of weeding after big granula only reaches target weeds, its length
Time, which can not reach weeds or weeds and nearby or after applying sink under water at once, is partly considered as the part that do not work, this experiment test
5 minutes after applying, reach within 10 minutes 8 centimetres of plant diameter scope, that more than water layer 2cm active material accounts for former active material is total
Measure percentage.
Measurement result such as table 1 below：
Interpretation of result：As can be seen from Table 1, embodiments of the invention 1-11 relative to comparative example 1-5 in water surface diffusion velocity
And quick-acting is more excellent, particularly the present invention uses compound surfactant for the single dose of comparative example 1 and 2,
Effect is more excellent, and for the comparative example 2-5 using other kinds of surfactant and combinations thereof, effect is also more excellent.
In addition, with regard to the application itself, when selecting specific Surfactant Ratio, such as the two in preparation example 4
For 2:When 1, its effect is better compared to 1-3, and when mineral oil and vegetable oil are special ratios, i.e. the effect of embodiment 6
Fruit is compared to embodiment 5 more preferably.
2nd, big granula endurance life test is floated
It is to play herbicide effect on the water surface and on certain water layer due to floating big granula, when through after a period of time, it is
Sink under water, then show that its flotation property is bad, corresponding persistence is poor.This experiment test apply after 1 hour and 5 hours,
8 centimetres of plant diameter scope, more than water layer 2cm active component account for former active material total amount percentage.
Measurement result such as table 2 below：
Interpretation of result：When it is single dose to float the oily matter in big granula, it is worse in terms of persistence compared to composite finisher,
In addition, when it is special ratios, its effect is also optimal with regard to composite finisher in itself.
3rd, crop field testing experiment
The inventive method：The big granula of the floating of the embodiment of the present invention 11 is shed in rice transplanting Tanaka, in the weeds 2-3 leaf phases,
Shed in the big granula of floating of the ridge present invention in rice transplanting Tanaka, every mu is shed at 20-30, dosage 100-
120g/ mus, during dispenser, water layer keeps 4cm, water conservation 7 days after dispenser.
Control 1：Shed in the weeds 4-5 leaf phases, remaining is same as above；
Control 2：Shed in the leaf phase of weeds 1, remaining is same as above；
Control 3：Water layer keeps 3cm, and remaining is same as above；
Control 4：Water layer keeps 4.5cm, and remaining is same as above；
Control 5:201310710822.1 the formula and throwing method of middle embodiment 9, remaining is same as above.
Test its preventive effect to paddy field weed, method of its method with 201310710822.1 embodiments 9.
Dosage is 12g/ mus；
Table 3：15 days Weed-control effects after medicine（%）
As can be seen from the above table, for compared to control 5, the pharmacy control efficacy of the embodiment of the present invention 11 is more excellent, in addition, even if medicament phase
Together, it is also more excellent when selecting specific weed growth phase and specific water layer, its effect.
It should be further stated that, the corresponding herbicidal effect of transplanted rice field is as above only listed herein, substantially, when
When rice field is Direct sowing rice field, rice seedling bed and dry seeded rice field, its effect is suitable, and it is several frequently seen that method of the invention is applicable this
Rice field, it will not enumerate as follows.
A kind of method of preventing and treating weeds in paddy field of the present invention is described by specific example, art technology
Personnel can use for reference the link such as present invention, appropriate feed change, process conditions to realize corresponding other purposes, and its correlation changes
Become all without departing from present disclosure, all similar replacements and change are apparent to those skilled in the art
, it is considered as being included within the scope of the present invention.
Claims (10)
- A kind of 1. method for preventing and treating direct sowing rice weed, it is characterised in that methods described is that water layer keeps 3-4.5cm in rice field When, the big granula of following weeding is shed, each component is by weight：Herbicide：10-25；Surfactant：1-25；Oily matter：2-30；White carbon：1-10；Solid core core material：10-80；KCl：1-30；The surfactant is that weight ratio is 1:20-30:1 sulfonate lignin and the composite table of APES Face activating agent；The oily matter is that weight ratio is 1:10-20:1 mineral oil and the compound oily matter of vegetable oil.
- 2. according to the method for claim 1, it is characterised in that in weeds 1-3 leaf phase controlling weeds.
- 3. according to the method for claim 1, it is characterised in that water layer keeps 4cm in rice field.
- 4. according to the method for claim 1, it is characterised in that the dosage of surfactant is 15-18 parts by weight.
- 5. according to the method for claim 1, it is characterised in that the weight of sulfonate lignin and APES Than for 2:1.
- 6. according to the method for claim 1, it is characterised in that the dosage of compound oily matter is 14-16 parts by weight.
- 7. according to the method for claim 1, it is characterised in that the weight of mineral oil and vegetable oil ratio is 2:1.
- 8. according to the method for claim 1, it is characterised in that the solid core core material for calcining float stone, calcining vermiculite, Obsidian, perlite or glass pearl.
- 9. according to the method for claim 1, it is characterised in that when rice field is Direct sowing rice field or rice seedling bed, removed shedding Before careless big granula, following pretreatment is done to Direct sowing rice field or rice seedling bed：Step 1: pour water：Poured water to harvested crop field, water level is higher than native face 5-10cm；Step 2: shallow rake, sowing and rotary tillage：After carrying out shallow rake to the crop field through pouring water, rice paddy seed is sowed, is then revolved Plough；Step 3: pouring water again and weeding：Poured water again, water layer keeps 3-5cm, sheds the big granula of weeding.
- 10. according to the method for claim 1, it is characterised in that when rice field is dry seeded rice field, shedding the big granula of weeding Before, following pretreatment is done to dry seeded rice field：Step 1：Shallow rake, sowing and rotary tillage：After carrying out shallow rake to crop field, rice paddy seed is sowed, then carries out rotary tillage；Step 2: pouring water and weeding：Pour water, water layer keeps 3-5cm, sheds the big granula of weeding；When rice field is transplanting rice field, transplanting, pour water and weeding step with dry seeded rice field identical.
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|---|---|---|---|---|
| IT1197501B (en) * | 1985-10-11 | 1988-11-30 | Rhone Poulenc Agrochimie | RICE SEEDS COATED WITH ALGICIDE AND RICE CULTIVATION PROCESS |
| CN103688971A (en) * | 2013-12-20 | 2014-04-02 | 南京高正农用化工有限公司 | Weeding macro granule for paddy field and preparation method thereof |
| CN104430446A (en) * | 2014-11-20 | 2015-03-25 | 南京高正农用化工有限公司 | Paddy field weed control macro-granule containing pyrazosulfuron ethyl and quinclorac |
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2017
- 2017-03-01 CN CN201710118587.XA patent/CN107711830A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT1197501B (en) * | 1985-10-11 | 1988-11-30 | Rhone Poulenc Agrochimie | RICE SEEDS COATED WITH ALGICIDE AND RICE CULTIVATION PROCESS |
| CN103688971A (en) * | 2013-12-20 | 2014-04-02 | 南京高正农用化工有限公司 | Weeding macro granule for paddy field and preparation method thereof |
| CN104430446A (en) * | 2014-11-20 | 2015-03-25 | 南京高正农用化工有限公司 | Paddy field weed control macro-granule containing pyrazosulfuron ethyl and quinclorac |
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