Rice weeding composition

Abstract

The invention relates to a rice herbicidal composition, the active ingredients are pyrazosulfuron-methyl and metazafen-sulfen, the mass ratio of pyrazosulfuron-methyl and metazafen-sulfen is 0.1-40:0.1-40, the sum of the two The percentage content in the herbicidal composition is 0.1-70%, and it can be prepared into wettable powder, water dispersible granule, water suspension and granule. The rice herbicidal composition of the invention has the characteristics of safety and environmental protection, good control effect, wide herbicidal spectrum and the like.

Description

technical field [0001] The invention belongs to the technical field of pesticides, especially the field of herbicides, and in particular relates to a two-component herbicidal composition, which is used for weeding rice. Background technique [0002] Pyrazosulfuron-methyl is a sulfonylurea herbicide, and it is a selective systemic herbicide. It is absorbed mainly through the root system, and quickly transfers in the weed plant, inhibits growth, and gradually kills the weed. Rice can decompose the agent and has almost no effect on rice growth. The drug effect is stable, the safety is high, and the duration of effect is 25-35 days. It has high control activity against barnyardgrass, wild water chestnut, water sedge, reed and other annual and perennial weeds, and also has high control activity against sulfonylurea-resistant weeds such as firefly rush, bermudagrass, Yujiuhua, and sagittarius. Excellent preventive effect. [0003] Metraxazole is an isoxazole herbicide that inhi...

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Problems solved by technology

[0004] After the above two drugs are used alone for a long time, it is easy to cause the plants to develop dr

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