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Weeding composition and application thereof

A herbicidal composition and technology of oxadiazone, which are applied in the field of pesticides, can solve problems such as backward use of technology by users, incomplete killing of weeds, and poor environmental conditions, etc., achieving remarkable weeding effects, improving medicinal effects, and reducing effective weeds. The effect of component loss

Inactive Publication Date: 2020-12-08
NANTONG JIANGSHAN AGROCHEM & CHEM LIMITED LIABILITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, herbicides are a double-edged sword. During the use of herbicides, due to their own characteristics and processing quality problems, backward technology used by users, and poor environmental conditions, etc., they will also cause negative effects such as phytotoxicity on crops.
Crop injury caused by herbicides occurs frequently, large-scale injury occurs from time to time, and food loss is serious
At the same time, selective herbicides are mainly used in the control of weeds in crop fields. However, selective herbicides have a narrow herbicidal spectrum and incomplete killing of weeds when controlling weeds.

Method used

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  • Weeding composition and application thereof
  • Weeding composition and application thereof

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preparation example Construction

[0055] The third aspect of the present invention provides the preparation method of the dispersible oil suspension concentrate, comprising the following steps: mixing, shearing and grinding the herbicidal composition, adjuvants and dispersion medium to obtain the finished product.

[0056] In a preferred embodiment, the preparation method of the dispersible oil suspension comprises the following steps: mixing the herbicidal composition, emulsifier, wetting agent, thickener, antifreeze agent and dispersion medium, and dispersing at high speed 10-60min; then use a sand mill to grind until the D97 is 1-10μm, that is.

[0057] In a more preferred embodiment, the D97 is 3±1 μm.

[0058] D97 refers to the corresponding particle size value when the cumulative distribution percentage from small to large reaches 97% in the particle size distribution. That is to say, in a certain powder, the number of particles with a particle size smaller than D97 accounts for 97% of the total number ...

Embodiment 1

[0065] Embodiment 1 provides an aqueous solution of a herbicidal composition, the herbicidal composition is sodium dimethyltetrachloride and oxadiazone, the concentration of the sodium dimethyltetrachloride is 30g / L; the concentration of the oxadiazone It is 90g / L.

Embodiment 2

[0067] Embodiment 2 provides an aqueous solution of a herbicidal composition, the herbicidal composition is sodium dimethyltetrachloride and oxadiazone, the concentration of the sodium dimethyltetrachloride is 30g / L; the concentration of the oxadiazone It is 120g / L.

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Abstract

The invention relates to the technical field of pesticides, in particular to a weeding composition and application thereof. The weeding composition comprises chipton sodium and oxadiazon according toa weight ratio of 1: (0.1-10). According to the weeding composition, two herbicides with different weeding mechanisms act on weeds together to generate a synergistic effect so that the weed control spectrum is expanded, the control effect is improved, the defect of poor control effect on main weeds when a single agent is used is overcome, and the weeding effect is remarkable; the weeding composition has an excellent weeding effect on monochoria vaginalis, eclipta prostrata, barnyard grass and cyperus rotundus, is environmentally friendly, is safe to crops and has no influence on next-stubble crops. According to the dispersible oil suspending agent prepared from the weeding composition, all the raw materials form a synergistic effect, and the dispersible oil suspending agent has relativelygood emulsifying dispersity and storage stability, is good in spreading permeability on crop surfaces during use, reduces loss of effective components and has an obvious synergistic effect, so that the medicinal effect of herbicides is improved.

Description

technical field [0001] The invention relates to the technical field of pesticides, in particular to a herbicidal composition and its application. Background technique [0002] Pesticides play a very important role in the planting industry. The development of pesticides should have high efficiency, low toxicity, low residue and no pollution. Therefore, in the selection of pesticides, the pesticides of compound mixtures have naturally become the preferred and effective way at present. By adjusting the ratio of pesticides, the performance can be complemented, and the pesticides can get the best synergy. [0003] Herbicides play a huge role in protecting crops from weeds, promoting crop growth, and improving the quality and quality of agricultural products. They have rapidly developed into an important means of agricultural weeding and have been rapidly popularized and applied in production. However, herbicides are a double-edged sword. During the use of herbicides, due to thei...

Claims

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Application Information

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IPC IPC(8): A01N39/04A01N43/824A01P13/00
CPCA01N39/04A01N43/82
Inventor 李艳华李新新王佳伟张洪杰高峰李丹丹曹晓炜
Owner NANTONG JIANGSHAN AGROCHEM & CHEM LIMITED LIABILITY
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