CN1253724A - Weedicide for controlling upland field weed - Google Patents

Abstract

The compounded weedicide chucaoling is made up by using chemical weedicide trifluralin and acetochlor through a reasonable compounding process. It is applicable to presowing or post-sowing preemergence (or before cultivation by setting seedling) soil treatment and control of monocotyledonous and dicotyledonous weeds in mulch film or plastic greenhouse, also can be used for weeding in orchard, tea garden, floriculture and lawn.

Description

The weed killer herbicide of preventing and removing dry farmland weeds

The invention belongs to composite chemical herbicide.

Trefanocide (trifluralin) is the key weed killer herbicide kind of dry land, and so its long-term use causes as special weeds such as dodder soybean etc. is worked the mischief.Facts have proved and use single weed killer herbicide year after year, easily make changing of ruderal species mass-sending, resistant weed is spread.

The present invention is that trefanocide is sought appropriate compatibility through basic research, surveys reasonably prescription of screening through giving birth to, and through the field medicine effect test checking, thereby select Acetochlor (acetochlor) to make with trefanocide is composite---herbicide missible oil (or wetting powder).Thereby make the strong point of single agent developed.Deficiency obtains complementation, has improved safety in utilization and optimum period, has reduced agricultural basis.

The present invention adopts the combination of dissimilar weed killer herbicides collaborative---and trefanocide belongs to dinitroaniline selectivity preemergence herbicide, and Acetochlor belongs to amide-type selectivity preemergence herbicide.When weed seed contacts the herbicide soil layer after germination, medicine absorbs through young shoot, young root, the hypocotyl of the coleoptile broadleaf weed of grassy weed is the main absorption site of medicine, herbicide can hinder weeds cell division generation apocyte and polyploidy causes deformity, synthesizing of RNA metabolism simultaneously and protein, thus the young shoot young root is stopped growing and death.

Herbicide weed killer herbicide of the present invention, be applicable to crops such as cotton, soybean, peanut, corn, sugarcane, rape, wheat, vegetables broadcast preceding or broadcast the back seedling before (or before transplantation of seedlings) soil treatment and mulch film or greenhouse gardening weeding, also be applicable to that orchard, tea place, flowers, lawn use.Herbicide can be prevented and kill off lady's-grass, barnyard grass grass, green foxtail, amur foxtail, annual bluegrass, moleplant seed, yard grass, wild oat, eleusine indica, bromegrass, india lovegrass, double-colored jowar, Stellaria alsine Grim., dodder, lamb's-quarters, amaranth, chickweed, dayflower, kitchen garden etc. effectively.And hold effect suitably, a dispenser just can be controlled weeds in the time of infertility.

The present invention, product processes and equipment are simple, only need be furnished with the enamel reaction still system with electronic agitator that vacuum plant, letter connect heater and promptly possess working condition.

For example: with the enamel reaction still of the electronic agitator of 1000 liter bands, suck the solvent of part earlier through vacuum, drive agitator, suck 208 kilograms of the former medicines of trefanocide (folding 100%) again based on dimethylbenzene, 192 kilograms of acetochlor tcs (folding 100%), add emulsifier, through solvent balance to 800 liter, letter connects and is heated to 65 ℃, stirred about 1 hour, after sample analysis is qualified, promptly accuses 50% herbicide emulsion and make, divide that labeling gets final product in the 120 milliliter bottles of packing into.Every mu of (667m ²) 80～120 milliliters of consumptions, add clear water and stir evenly spraying and mix shallow soil.

Claims (4)

1. Be used to broadcast preceding or broadcast the complex weedicide herbicide of (or before transplantation of seedlings) soil treatment before the seedling of back, its reactive compound component:

   1, trefanocide, structural formula:

   
2. 2, Acetochlor, structural formula:
3. 3, herbicide is applicable to that dry crops such as cotton, soybean, peanut, corn, sugarcane, rape, wheat, vegetables and mulch film or greenhouse gardening prevent and kill off grass family and broadleaf weed, also is applicable to uses such as orchard, tea place, flowers, lawn.The active ingredient ratio of its reactive compound is trefanocide: Acetochlor=1: 1 to 1: 50 or 50: 1.Comprise relevant kind such as butachlor, isopropyl methoxalamine etc. in the acetamide-group herbicides simultaneously, the same ratio.
4. 4, above herbicide built reactive compound component product and trade name: herbicide or the spirit of gram grass, weeding star.