CN104304294A - Mulberry garden herbicide and preparation method thereof - Google Patents

Abstract

The invention relates to a mulberry garden herbicide, and the composition comprises the following components by weight: 20 parts of bentazone, 15 parts of bromo benzonitrile, 15 parts of tribenuron-methyl, 25 parts of dicamba, 25 parts of sodium dodecanesulphonate and 50 parts of salad oil. The mulberry garden herbicide has the beneficial effects that: the herbicide composition provided by the invention is mainly used for weed control in a mulberry garden, and good in weeding effect, reduces the dosage and application times, is long in herbicide application duration, and can effectively control the weed harm in the whole growth period by one-time herbicide application.

Description

A kind of weed killer herbicide for mulberry tree garden and preparation method thereof

Technical field

The present invention relates to herbicidal composition, particularly a kind of weed killer herbicide for mulberry tree garden.

Background technology

Weed killer herbicide is in the market of a great variety, but most weed killer herbicide creates very large pollution to soil after use, changes soil structure, affects the mouthfeel of crop itself; And a lot of weed killer herbicide all can make seedling body itself sustain damage in use, affects its growth rate.

Bentazone is a kind of tool optionally contact killing type herbicide after seedling, for the process of weeds cauline leaf in seedling stage.Be mainly used in the crops such as paddy rice, soybean, peanut, wheat, prevent and kill off broad leaved weed and sedge weed, invalid to grassy weed.

Chemical name: 3 one isopropyl one (1H) benzo one 2,1,3 one thiadiazine-4-ketone one 2,2 one dioxide [1]

English name: bentazone.

Chemical formula: C ₁₀h ₁₂n ₂o ₃s.

Proterties: sterling is clear crystal.

Fusing point: 137-139 DEG C.

Relative density: 1.47.

Vapour pressure: 0.46mPa (20 DEG C).

Brominal: Chinese another name: the bromo-4-4-hydroxy-benzonitrile of 3,5-bis-; The bromo-4-hydroxy-phenylformonitrile of 3,5-bis-; The bromo-4-hydroxyl of 3,5-bis--1-cyano group benzene

English name: Bromoxynil

English another name: 3,5-dibromo-4-hydroxybenzonitrile

CAS:1689-84-5

EINECS:216-882-7

Molecular formula: C7H3Br2NO

Molecular weight: 276.9128;

Toxicity: moderate toxicity, rat acute LD50 of passing through mouth is 190mg/kg, and chmice acute LD50 of passing through mouth is llOmg/kg, and rat acute is through skin LD50>2000mg/kg.

Brominal sterling is colourless crystallization, molten point 194 ~ 195 °, solvability (25 °): 130mg/ premium on currency, is 170g/ liter in acetone.The slightly taupe crystallization of Brominal industrial goods, content >=95%, fusing point 189 ~ 192 DEG C.

Tribenuron-methyl: chemical name, 2-[N-(4-methoxyl group-6-methyl isophthalic acid, 3; 5-triazine-2-base)-N-methylcarbamoyl amido sulfonyl] methyl benzoate; this product is white solid, m.p.141 DEG C, vapour pressure 0.036 × 10-3Pa (25 DEG C).When pH value 4, pH value 5, pH value 6, the solvability in water is respectively 28mg/L, 50mg/L, 280mg/L; Solvability is in organic solvent: acetone 43.8mg/L, acetonitrile 54.2mg/L, carbon tetrachloride 3.12mg/L, ethyl acetate 17.5mg/L, hexane 0.028mg/L.Distribution coefficient (n-octyl alcohol/water) 0.36 (pH=7).Storage at normal temperature is stablized, and stablizes light, is hydrolyzed 45 DEG C time, and pH value 8 ~ 10 is stablized, but is hydrolyzed rapidly when pH<7 or >12.Half life period 1 ~ 7d in soil.

Be mainly used in preventing and kill off various annual broadleaf weed, better to the effect such as Descurainia sophia, shepherd's purse, shepherd's purse of cracking rice, corn gromwell, lamb's-quarters, Amaranthus retroflexus, also certain preventive effect is had to summer cypress, chickweed, knotweed, clearvers etc., not remarkable to effects such as creeping thistle, volume stem knotweed, field bindweed, wartwort, invalid to grassy weeds such as wild oat, amur foxtail, bromegrass, Triticum tauschii.

This product is selectivity inner-adsorption conduction-type herbicide, can be absorbed, and conduct in plant body by the root of weeds, leaf.By suppressing the activity of acetolactate synthestase (ALS), thus affect the biosynthesis of branched-chain amino acid (as: leucine, isoleucine, valine etc.).Show as growing point necrosis, vein chlorosis after hazard of plant, plant growth is subject to serious suppression, dwarfing, and final complete stool is withered.Susceptible weeds stops growing after absorbing medicament immediately, dead after 1-3 week.

Dicamba: belong to benzoic acid system weed killer herbicide, there is Uptake and translocation effect, have remarkable preventive effect to annual and perennial broadleaf weed.Dicamba is used for spraying after seedling, and medicament very soon by the leaf of weeds, stem, root absorption, can be conducted by phloem up and down, focuses mostly at meristematic tissue and the vigorous position of metabolic activity, hinders the normal activity of plant hormone, thus make it dead.The metabolic breakdown that carries out that can be very fast after gramineous plants absorption medicament makes it to lose efficacy, therefore the pesticide resistance that performance is stronger.Safer to gramineous crops such as wheat, corn, millet, paddy rice, dicamba disappears in soil after microorganism is comparatively fast decomposed, and both there will be lopsided curling symptom with latter general 24 hours broad leaved weeds, and 15-20 days dead.

Dodecyl sodium sulfate (Sodium dodecyl sulfonate, SDS), molecular formula is NaC ₁₂h ₂₅sO ₃, molecular weight: 272.38.Be usually used in chemical industry and light and textile industries make emulsifier, flotation agent and penetrant.Dodecyl sodium sulfate and lauryl sodium sulfate are two kinds of different materials.

Summary of the invention

Technical problem solved by the invention is to provide a kind of weed killer herbicide for mulberry tree garden.

The technical solution used in the present invention is:

For the weed killer herbicide in mulberry tree garden, described composition is made up of according to parts by weight following component:

Bentazone 15-25 part, Brominal 10-20 part, tribenuron-methyl 10-20 part, dicamba 20-30 part, dodecyl sodium sulfate 20-30 part, salad oil 45-55 part.

On the basis of such scheme, a kind of weed killer herbicide for mulberry tree garden, described composition is made up of according to parts by weight following component:

Bentazone 20 parts, Brominal 15 parts, tribenuron-methyl 15 parts, dicamba 25 parts, dodecyl sodium sulfate 25 parts, salad oil 50 parts.

On the basis of such scheme, above-mentioned herbicidal composition, described herbicidal composition is oil suspending agent.

Beneficial effect of the present invention:

Herbicidal composition provided by the present invention, be mainly used in weeds in control mulberry tree garden, herbicidal effect is good, can reduce dosage and spraying times, and the dispenser lasting period is long, and a drug effectively can control the Weed infestation in the time of infertility.

Embodiment

Embodiment 1

For the weed killer herbicide in mulberry tree garden, described composition is made up of (every part of 1kg) according to parts by weight following component:

Bentazone 25 parts, Brominal 20 parts, tribenuron-methyl 20 parts, dicamba 30 parts, dodecyl sodium sulfate 30 parts, salad oil 55 parts.

Take active component, add above-mentioned auxiliary element, through ball milling sanded treatment, i.e. oil suspending agent described in gained.

All can dispenser within any vegetative period of weeds.

Embodiment 2

For the weed killer herbicide in mulberry tree garden, it is characterized in that described composition is made up of (every part of 1kg) according to parts by weight following component:

Bentazone 20 parts, Brominal 15 parts, tribenuron-methyl 15 parts, dicamba 25 parts, dodecyl sodium sulfate 25 parts, salad oil 50 parts.

Take active component, add above-mentioned auxiliary element, through ball milling sanded treatment, i.e. oil suspending agent described in gained.

All can dispenser within any vegetative period of weeds.

Embodiment 3:

For the weed killer herbicide in mulberry tree garden, it is characterized in that described composition is made up of (every part of 1kg) according to parts by weight following component:

Bentazone 15 parts, Brominal 10 parts, tribenuron-methyl 10 parts, dicamba 20 parts, dodecyl sodium sulfate 20 parts, salad oil 45 parts.

Take active component, add above-mentioned auxiliary element, through ball milling sanded treatment, i.e. oil suspending agent described in gained.

All can dispenser within any vegetative period of weeds.

Embodiment in above-mentioned embodiment is illustrative instead of determinate; several embodiments can be listed according to institute's limited range; therefore do not departing from any change and amendment made under general plotting of the present invention, all should belong within protection domain that the present invention limits.

Claims (3)

1., for the weed killer herbicide in mulberry tree garden, it is characterized in that described composition is made up of according to parts by weight following component:

Bentazone 15-25 part, Brominal 10-20 part, tribenuron-methyl 10-20 part, dicamba 20-30 part, dodecyl sodium sulfate 20-30 part, salad oil 45-55 part.

2. a kind of weed killer herbicide for mulberry tree garden according to claim 1, is characterized in that described composition is made up of according to parts by weight following component:

Bentazone 20 parts, Brominal 15 parts, tribenuron-methyl 15 parts, dicamba 25 parts, dodecyl sodium sulfate 25 parts, salad oil 50 parts.

3. herbicidal composition according to claim 1, is characterized in that described herbicidal composition is oil suspending agent.