CN100369547C

CN100369547C - Corn field herbicide composition

Info

Publication number: CN100369547C
Application number: CNB2006100728391A
Authority: CN
Inventors: 田晓宏
Original assignee: SHANGHAI TAIHE (GROUP) CO Ltd
Current assignee: SHANGHAI TAIHE (GROUP) CO Ltd
Priority date: 2006-04-11
Filing date: 2006-04-11
Publication date: 2008-02-20
Anticipated expiration: 2026-04-11
Also published as: CN1846503A

Abstract

The present invention relates to a herbicide composition which also comprises boron and boron compounds, besides sym-triazine herbicide, amide herbicide and sulfonylurea herbicide. The present invention can be prepared into oil suspension, wettable powder, dry suspension, water dispersible granules, granules, tablets, effervescent tablets, cream and pills. The present invention can be used for controlling weeds on a corn field in front or back of seedlings and has conspicuity production increasing action and weeding functions.

Description

A kind of corn field herbicide composition

Technical field

The present invention relates to a kind of herbicidal composition, can be used in controlling weeds in cornfield before seedling or behind the seedling.

Background technology

Sym-trinitrobenzene, amide-type are corn field weed killer herbicides commonly used, the weed killer herbicide that adds sulfonylurea just can be widely used in before the maize seedling and postemergence weed control, it not only can be prevented and kill off the unearthed of the preceding weeds of maize seedling but also can prevent and kill off the weeds of being unearthed, has often increased service time, has enlarged to kill careless composing.

Up to now, find the report of the formulations of pesticide that inorganic matter boron and compound thereof and organic herbicide such as sym-trinitrobenzene, amide-type, sulfonylurea herbicide is composite as yet.

Summary of the invention

The inventor finds that through a large amount of experiments borax has important effect in the growth of crops.Borax is a kind of inorganic herbicide, and it can effectively kill the weeds young shoot that just has been unearthed, and is again plant growth period and the indispensable trace element of growthdevelopmental stage simultaneously.

Sugar and sugar alcohol complexing that inorganic matter boron can and be rich in hydroxyl form the boron ester compounds, and these compounds participate in various metabolic activities as the agent or the product of enzyme reaction.Boron has following several respects influence to plant growing.

The first, promote cell elongation and tissue differentiation: between growth hormone (heteroauxin) and the boron tangible interaction is arranged.Boron suppresses the indoleacetic acid oxidase activity in root system, and under the spread effect of heteroauxin, the root elongation is normal.In the green plants, heteroauxin only forms in vascular plant, and it participates in the differentiation of xylem vessel.Therefore general demand to boron also only limits to vascular plant.The plant lignification of boron deficiency partly slackens.The cambial cell hyperplasia is strengthened in the division of stem cambium histocyte.

The second, boron can with the phenolic compound complexing, overcome the inhibitory action of phenolic compound to indoleacetic acid oxidase.In lignin formation and xylem vessel's atomization, boron starts to control to make to the activity of hydroxylase and phenolic compound enzyme to be used.

The 3rd, boron has the function aspect two in carbohydrate metabolism: the transportation of the synthetic and sugar of cell wall substance.Boron can promote the circulation of Cori ester and the conversion of sugar.Boron is not only combined closely with cell wall constituent, and is that cell wall structure integrality institute is essential.Boron and calcium play " iuntercellular cement " jointly.Boron influences RNA, and especially uracil is synthetic.Boron deficiency plant young leaves protein content reduces, and this only limits to cytoplasm, and chloroplast protein content is unaffected, so boron deficiency plant chlorosis is not general.

The 4th, the variation that the indirectly-acting of boron may increase with sugar amount in the nectar and form is relevant, makes spending the insect more attractive of entomophilous plants.The direct effect of boron and the pollen of flower pesticide produce ability and the pollen grain vitality has substantial connection.Boron can stimulate pollen germination, particularly pollen tube growth.

Spire launches difficulty during the corn boron deficiency, presents wide white stripes between vein; The basal part of stem chap, become fragile.Tassel poor growth or very difficult extraction the out when serious; The cob of fruit ear is short and small, can not normally pollinate.The fruit ear deformity, the seed sprawl, it is sparse grain, and the seed base portion often has banded brown scar.

The objective of the invention is, a kind of herbicidal composition is provided, it is made of inorganic matter borax and organic herbicide composition.It can effectively kill the weeds young shoot that just has been unearthed, and it is to promote growing of crop as indispensable trace element in the biochemical reactions simultaneously.

The present invention is used for the herbicidal composition of corn field, and it is as follows to fill a prescription:

The composition weight portion

Sym-trinitrobenzene 1-50

Amide-type 0-40

Sulfonylurea 1-10

Boron and compound 0.1-10

Auxiliary agent 10-40

Described sym-trinitrobenzene is meant: atrazine, Simanex, cyanazine, symetryne, ametryn, prometryn, SSH-108 weed killer herbicide.This type of weed killer herbicide can be prevented and kill off weeds in the corn field effectively, and its effect to broad leaved weed is better than grassy weed.Its weed killer herbicide mechanism mainly is to suppress photosynthesis of plants.All can use behind the bud before the weeds bud.

Described amide-type is meant: be Acetochlor, butachlor, propisochlor, isopropyl methoxalamine weed killer herbicide, its main weeding principle is to suppress lipogenesis, thereby suppresses the growth of seed sprouting and young shoot, thereby causes weeds death.It kills careless effect is that to prevent and kill off grassy weed effective, relatively poor to broad leaved weed.Be used for before the weeds germination.

Described sulfonylurea is meant: nicosulfuron, rimsulfuron, thifensulfuron methyl, foramsulfuron weed killer herbicide, this type of herbicide action target is an acetolactate synthestase, and the weed growth point is suppressed, and causes weeds death.Use in the weeds 2-5 leaf phase.

Described boron and compound comprise: borax, disodium tetraborate, eight boric acid disodiums, kodalk.

Described auxiliary agent comprises: emulsifier, bleeding agent, spreader-sticker, dispersant, wetting agent etc.

Described emulsifier is to play emulsification in preparation uses, and emulsifier commonly used is as one or more composite emulsifiers such as alkylphenol polyoxyethylene, fatty alcohol-polyoxyethylene ether, phenethyl phenol polyethenoxy polyethenoxy ether, sorbitan fatty acid ester, castor oil ethylene oxide adduct and nonionic emulsifiers such as derivative, alkylphenol polyoxyethylene formaldehyde condensation products thereof, sulfonate, sulphate, phosphate, phosphite type anion emulsifier and farming breasts 0202,1602.

Described dispersant has been to reduce particle to assemble, improve stability action, dispersant commonly used is as non-ionic dispersing agents such as anionic dispersing agents such as alkylnaphthalene sulfonate, naphthalene sulfonic acid-formaldehyde condensation product sodium salt, lignosulfonates and alkylphenol polyoxyethylene, polyoxyethylene carboxylate, fatty acid glyceride APEOs.

Described wetting agent has been to reduce liquid-solid interfacial tension, increases pastille liquid to handling the contact of the object surface of solids, strengthens osmosis, ravine humectant commonly used as: lauryl sodium sulfate, fatty acid amide N methyl taurine sodium salt, draw back powder, JFC etc.

Described bleeding agent: destroy the plant surface wax coat, help medicine company and enter in the plant corpus, increase wetting function.For example: aliphatic alcohol sulfate, benzene sulfonamide acid alkali metal salt and amine salt, dialkyl group succinic acid sulfonate sodium, fatty acid amide N methyl taurine sodium salt etc.

Described spreader-sticker: the leaf of plant, the epidermis side of stem etc. usually has the composition or the structure of moisture-resistant lubricant nature, and the blade face often has negative electrical charge, and agricultural chemicals liquid is had repulsive interaction.Performances such as spreader-sticker can increase sprayed insecticide moistening, soaks into, expansion, set increase drug effect.Spreader-sticker commonly used has the hydrosulphate (37%) of soap, rosin potash soap, coco-nut oil fatty acid ester class (as the spreader-sticker of grease system), unsaturated hydrocarbon and the mixture (as non-dissociating property agricultural chemicals) and the mannitol laurate of lignin hydrochlorate (20%).

Effect of the present invention: in s-triazine, amide-type, sulfonylurea herbicide, add borax and the mix preparation made, can seal the weeds that do not emerge, can kill oneself weeds that emerge simultaneously again; Really play weeding, the effect of microelement-supplementing a drug, double effects.A drug has played weeding and the requisite trace element of additional crop like this.

The present invention carries out four kinds of dissimilar weed killer herbicides to be not easy to form stable compositions when composite, and wherein sulfonylurea is particularly unstable, meets the water capacity and easily decomposes.In order to address this problem, the present invention has studied the various dosage forms of this herbicidal composition in great detail, prepared oil-suspending agent (OF), wetting powder (WP), water dispersible granules (WG), granula (GR), dry suspending agent (DF), tablet (TA), effervescent tablet, emulsifiable paste, pill, can the strict stable formulation type of controlling moisture content in process.

Embodiment

EXAMPLE l: oil-suspending agent

Material name

42.5% (active ingredient)

44% (active ingredient)

47% (active ingredient)

	Preparation	Preparation	Preparation
	Preparation	Preparation	Preparation	Atrazine	20 parts	20 parts	20 parts
Butachlor	20 parts	20 parts	20 parts	Atrazine	20 parts	20 parts	20 parts
Butachlor	20 parts	20 parts	20 parts	Nicosulfuron	2 parts	2 parts	2 parts
Borax anhydrous	0.5 part	2 parts	5 parts	Nicosulfuron	2 parts	2 parts	2 parts
Borax anhydrous	0.5 part	2 parts	5 parts	Emulsifier	10 parts	10 parts	8 parts
Wetting agent	2 parts	2 parts	2 parts	Emulsifier	10 parts	10 parts	8 parts
Wetting agent	2 parts	2 parts	2 parts	Dispersant	4 parts	4 parts	6 parts
Non-water system dispersion medium	Complement to 100 parts	Complement to 100 parts	Complement to 100 parts	Dispersant	4 parts	4 parts	6 parts

Note: emulsifier is the sorbitan fatty acid ester APEO: agricultural newborn 500#=4: 3;

Wetting agent is fatty alcohol-polyoxyethylene ether (JFC);

Dispersant is naphthalenesulfonate formaldehyde condensation compound (NNO);

Non-water system dispersion medium is a soya-bean oil: ethyl acetate=5: 1;

Take by weighing each amount of substance in the prescription, atrazine, nicosulfuron, emulsifier and soya-bean oil are pulverized through ball milling and sand milling,, obtain the qualified products packing through check with homogeneous after butachlor, emulsifier, wetting agent, the dispersant.

Embodiment 2: wetting powder

Material name	45.5% (active ingredient) preparation	40% (active ingredient) preparation	55% (active ingredient) preparation
Material name	45.5% (active ingredient) preparation	40% (active ingredient) preparation	55% (active ingredient) preparation	Atrazine	35 parts	15 parts	50 parts
Acetochlor	5 parts	20 parts	0 part	Atrazine	35 parts	15 parts	50 parts
Acetochlor	5 parts	20 parts	0 part	Rimsulfuron	1 part	0.5 part	1 part
Borax anhydrous	4.5 part	4.5 part	4 parts	Rimsulfuron	1 part	0.5 part	1 part
Borax anhydrous	4.5 part	4.5 part	4 parts	Dispersant	10 parts	10 parts	10 parts
Wetting agent	2 parts	2 parts	2 parts	Dispersant	10 parts	10 parts	10 parts
Wetting agent	2 parts	2 parts	2 parts	Carrier	4 parts	4 parts	4 parts
Thinner	Complement to 100 parts	Complement to 100 parts	Complement to 100 parts	Carrier	4 parts	4 parts	4 parts

Annotate: dispersant is lignosulfonates, wooden sodium: naphthalenesulfonate formaldehyde condensation compound (NNO)=3: 2;

Wetting agent is neopelex (DBS-Na);

Carrier is the white carbon black of inert substance that synthesizes;

Thinner is diatomite or bentonite;

Take by weighing each amount of substance in the prescription, with Acetochlor with the absorption evenly of white carbon black after, the preparation and the processing method of press wetting powder through processes such as batching, premixed, pulverizing, mixing again, comminution by gas stream, back mixing, are packed after checking the acquisition qualified products.

Embodiment 3: water dispersible granules

46% (active ingredient) preparation	50% (active ingredient) preparation	55.5% (active ingredient) preparation
46% (active ingredient) preparation	50% (active ingredient) preparation	55.5% (active ingredient) preparation	15 parts of prometryns	20 parts of Simanexs	30 parts of cyanazines

20 parts of alachlors	20 parts of isopropyl methoxalamines	20 parts of propisochlors
20 parts of alachlors	20 parts of isopropyl methoxalamines	20 parts of propisochlors	1 part of thifensulfuronmethyl	2 parts of foramsulfurons	1.5 parts of nicosulfurons
10 parts of borax anhydrous	8 parts of borax anhydrous	4 parts of borax anhydrous	1 part of thifensulfuronmethyl	2 parts of foramsulfurons	1.5 parts of nicosulfurons
10 parts of borax anhydrous	8 parts of borax anhydrous	4 parts of borax anhydrous	12 parts of dispersants	12 parts of dispersants	12 parts of dispersants
2 parts of wetting agents	2 parts of wetting agents	2 parts of wetting agents	12 parts of dispersants	12 parts of dispersants	12 parts of dispersants
2 parts of wetting agents	2 parts of wetting agents	2 parts of wetting agents	5 parts of binding agents	5 parts of binding agents	5 parts of binding agents
10 parts of disintegrants	10 parts of disintegrants	10 parts of disintegrants	5 parts of binding agents	5 parts of binding agents	5 parts of binding agents
10 parts of disintegrants	10 parts of disintegrants	10 parts of disintegrants	10 parts in carrier	10 parts in carrier	10 parts in carrier
Thinner is mended to 100 parts	Thinner is mended to 100 parts	Thinner is mended to 100 parts	10 parts in carrier	10 parts in carrier	10 parts in carrier

Wetting agent is neopelex (DBS-Na);

Binding agent can be modified starch or dextrin;

Disintegrant is urea or inorganic water-soluble salt Na ₂SO ₄, NaCl;

Carrier is the white carbon black of inert substance that synthesizes;

Thinner is diatomite or bentonite.

Take by weighing each amount of substance in the prescription, after the former medicinal white carbon black absorption evenly of amide-type liquid, press the preparation and the processing method of wetting powder, make wetting powder, add simultaneously in the kneader with quantitative absolute ethyl alcohol then and carry out extruder grain after the kneading, drying, screening, obtain to pack behind the qualified products through check, also can be by other prilling process granulation, but to note wanting in the process strict control moisture content.

Drug effect embodiment:

Embodiment 4:

44% (active ingredient) oil-suspending agent of embodiment 1 is adopted in test, wherein contains 20% atrazine, 20% butachlor, and 2% nicosulfuron and 2% borax anhydrous active ingredient, using dosage is 180 gram/mus.The contrast medicament is 50% atrazine aqueous suspension agent, consumption 72 gram/mus; 50% butachlor ec, consumption 72 gram/mus; 4% nicosulfuron wettable powder, consumption 90 gram/mus.Blank spray equivalent clear water.

For studying thing is corn.Choosing the plot that long-term weeds kind is many, density is big is the test region.Weeds mainly contain common weeds such as lady's-grass, green foxtail, eleusine indica, amaranth, multitude.

Test method is that corn is broadcast back, weeds 2-5 leaf phase, and even spraying is in soil surface.Even dispenser is carried out in the branch sub-district.In addition, every sub-district is fixed 5 strains and is sprayed weed killer herbicide of the present invention, as the situation of observing drug effect.Not dispenser of blank, not weeding.After the dispenser corn being carried out consistent conventional cultivation handles.

Experiment is totally 5 chemicals treatment and 1 blank.Each is handled equal 3 times and repeats.The upgrowth situation of 2-10 days range estimation weeds and the fertility condition of corn after the medication were observed once in per 2 days.Handle and observed weeds kind and the quantity that each is handled in back 15 days.Handle and investigated weeds strain number and fresh weight in back 30 days.Divide the sub-district harvesting corn at last, singles receive in fact, survey and produce.

The computational analysis method of drug effect is as follows:

Strain preventive effect=(check plot weeds strain number-treatment region weeds strain number)/check plot weeds strain number * 100%.

Fresh weight preventive effect=(check plot weeds fresh weight-treatment region weeds fresh weight)/check plot weeds fresh weight * 100%

Rate of growth=(treatment region per mu yield-check plot per mu yield)/check plot per mu yield * 100%

Table one herbicidal effect (result of the test is added up in July, 2005 Zhengzhou)

Handle medicament	Dosage (active ingredient: gram/mu)	Control time (my god)	Weeds preventive effect %							Total preventive effect %	Fresh weight preventive effect %
			Weeds preventive effect %							Total preventive effect %	Fresh weight preventive effect %	Lady's-grass	The barnyard grass grass	Eleusine indica	Amaranthus retroflexus	Kitchen garden	Green foxtail	Little lamb's-quarters
			Butachlor	36	15	82	90	85	80	83	85	Lady's-grass	The barnyard grass grass	Eleusine indica	Amaranthus retroflexus	Kitchen garden	Green foxtail	Little lamb's-quarters			80	83.6	76
30	90	95			15	82	90	85	80	83	85	91	85	88	92	89	90				80	83.6
30	90	95			Atrazine	36	15	80	78	80	90	91	85	88	92	89	90	89	82	90	82.7	80
30	84	88	87	95			15	80	78	80	90	93	89	93	92.9			89	82	90	82.7
30	84	88	87	95			Nicosulfuron	3.6	15	90	92	93	89	93	92.9	95	89	82	89	92	89.9		90
30	93	94	96	90	85	95			15	90	92	97	93			95	89	82	89	92	89.9
30	93	94	96	90	85	95			Contrivance 180 is restrained agent	36+36+3.6+3.6	15	97	93	95	96	98	97	99	93	95	96	99
30	99	100	100	100	100	99	100	99.7			15			95	96	98	97	99	93	95	96
30	99	100	100	100	100	99	100	99.7			Butachlor+atrazine+nicosulfuron+borax now mixes existing using	36+36+3.6+3.6	15	93	93	92	94	96	92	91	93		95
30	95	97	95	98	100	95	100	97.9					15	93	93	92	94	96	92	91	93

Table two is surveyed and is produced the result

Handle medicament	Dosage (active ingredient: gram/mu)	Amount of increase in production % after the medication
Handle medicament	Dosage (active ingredient: gram/mu)	Amount of increase in production % after the medication	Butachlor	36	5
Atrazine	36	7	Butachlor	36	5
Atrazine	36	7	Nicosulfuron	3.6	9
Contrivance 180 is restrained agent	36+36+3.6+3.6	25	Nicosulfuron	3.6	9
Contrivance 180 is restrained agent	36+36+3.6+3.6	25	Butachlor+atrazine+nicosulfuron+borax now mixes existing using	36+36+3.6+3.6	22

Atrazine, butachlor, nicosulfuron and borax are used energy synergy with among the present invention as can be seen from the table, and the weed killer herbicide of 44% oil-suspending agent has good preventive effect to most of weeds, and effect of increasing production is obvious.This weed killer herbicide removing activity height, broad weed-killing spectrum has grass to kill grass, does not have the grass sealing; Sulfonylurea herbicide is noresidue in soil, and is environmentally safe; Whole growth phase of corn to corn safety, the fertility proterties of corn is had no adverse effects, volume increase obviously; Use compound formulation, also have synergistic effect, thereby improved herbicidal effect, increased safety, reduced cost, reduced the medication link, reduced environmental pollution.

Claims

1. herbicidal composition that is used for corn field is characterized in that it contains:

The composition weight portion

Triazine herbicide 1-50

Acetamide-group herbicides 20-40

Sulfonylurea herbicide 1-10

Boron and boron-containing compound 0.1-10

Auxiliary agent 10-40

Described triazine herbicide comprises: atrazine, Simanex, cyanazine, symetryne, ametryn, prometryn, SSH-108;

Described acetamide-group herbicides comprise: Acetochlor, butachlor, propisochlor, isopropyl methoxalamine;

Described sulfonylurea herbicide comprises: nicosulfuron, rimsulfuron, thifensulfuron methyl, foramsulfuron;

Described boron and boron-containing compound comprise: borax, disodium tetraborate, eight boric acid disodiums, kodalk.

2. according to the herbicidal composition of claim 1, it is characterized in that this herbicidal composition is mixed with oil-suspending agent, wetting powder, dry suspending agent, water dispersible granules, granula, tablet, effervescent tablet, emulsifiable paste, pill.

3. the herbicidal composition of claim 1 is applied to the application of controlling weeds in the corn field.