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Composite herbicide

A compound herbicide and adjuvant technology, applied in the direction of herbicides, algicides, biocides, biocides, etc., can solve the problems of undiscovered literatures on the compounding and application of diflufenamide and pendimethalin , to achieve the effect of overcoming weed resistance, reducing pesticide residues, and increasing the site of action

Inactive Publication Date: 2012-07-25
QINGDAO HANSEN BIOLOGIC SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] After searching, there is currently no literature on the compounding and application of diflufenicin and pendimethalin

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Embodiment 1: (55% diflufenican pendimethalin wettable powder)

[0035] Formulation: diflufenican, 5%; pendimethalin 50%; wetting agent sodium lauryl sulfate, 2%; dispersant agent calcium lignosulfonate, 8%; filler silica, 18%, filler Kaolin, balance.

[0036] 2. Water dispersible granules

[0037] Preparation method: According to the proportion of the formula in the example, the active ingredients diflufenican and pendimethalin are added to the carrier, and surfactants and other functional additives are added therein, mixed, and 10-25% is added after jet milling water, and then kneaded, granulated, dried, and sieved to produce water-dispersible granules; or the pulverized powder was sprayed with water in a boiling granulator, granulated, dried, and then sieved to produce the product. The main equipments are mixer, jet mill, kneader, extrusion granulator, drying room or fluidized bed drying, or boiling granulator, screening machine.

Embodiment 2

[0038] Embodiment 2: (70% diflufenican pendimethalin water dispersible granules)

[0039] Formulation: diflufenican, 5%; pendimethalin, 65%; wetting agent sodium dodecylbenzene sulfonate, 3%; dispersing agent alkylnaphthalene sulfonate formaldehyde condensate, 8%; filler attapulgite Soil, surplus.

[0040] 3. Water suspending agent

[0041] Preparation method: according to the proportion of the formula, put the active ingredients diflufenicin, pendimethalin, surfactant and other functional additives in the reaction kettle in sequence, add water and mix evenly, undergo high-speed shearing, wet sanding, Finally, the product is obtained by homogeneous filtration. The main equipment is batching kettle, colloid mill or homogeneous mixer, sand mill.

Embodiment 3

[0042] Embodiment 3: (40% diflufenican pendimethalin water suspension concentrate)

[0043] Formula: Diflufenican, 30%; Pendimethalin, 10%; Emulsifier Nongru OP-10, 1%; Dispersant polycarboxylate, 5%; Thickeners are xanthan gum and magnesium silicate Aluminum, the dosage is 0.1% and 2% respectively; antifreeze agent propylene glycol, 5%; defoamer silicone compound, 0.5%; water, balance.

[0044] 4. Cream

[0045] Preparation method: Add the active ingredients diflufenican and pendimethalin into the carrier according to the formula ratio in the example, and add surfactant and other functional additives therein, and stir and mix evenly in a stirring mixing tank. The stirring and mixing kettle can be enamel reaction kettle, stainless steel stirring kettle, etc.

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Abstract

The invention belongs to the field of agricultural herbicide, and in particular relates to a composite herbicide. The composite herbicide contains diflufenican and pendimethalin which serve as active ingredients and have a weight ratio of (10:1)-(1:20). The composite herbicide has the advantages that: 1, the synergistic effect is obvious, and the pesticide effect is greatly improved; 2, the pesticide effect is improved, the field consumption of the active ingredients is reduced, the production and use costs are reduced, and pesticide residue and environmental pollution are reduced; and 3, the composite herbicide consists of the active ingredients with different action mechanisms, the action sites are increased, pesticide resistance of weeds are overcome and delayed, and the composite herbicide is an important means for comprehensively preventing and controlling field weeds.

Description

technical field [0001] The invention belongs to the field of agricultural herbicides, in particular to a composite herbicide. Background technique [0002] Diflufenican belongs to carotenoid biosynthesis inhibitors and is a broad-spectrum selective wheat field herbicide, which causes chlorophyll damage, cell rupture, and plant death. Apply 125-250g / ha (active ingredient) before or after emergence to wheat and barley fields in autumn to control gramineous and broad-leaved weeds, especially weeds such as weeds, porcini and viola. The agent has the following characteristics: wide herbicide spectrum; can control malignant weeds; long efficacy period in soil; stable efficacy; can be mixed with other herbicides. After the pesticide is applied, a leaching-resistant medicinal soil layer is formed on the soil surface, and remains active throughout the crop growth period. When the weeds germinate through the medicinal soil layer, they contact and absorb the medicinal agent. If the we...

Claims

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Application Information

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IPC IPC(8): A01N43/40A01N33/18A01P13/00
Inventor 李波蒋仁棠于天丛刘丽萍姜红林
Owner QINGDAO HANSEN BIOLOGIC SCI
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