Preparation method of nicosulfuron oil suspending agent

Abstract

The invention relates to the technical field of nicosulfuron, and discloses a nicosulfuron oil suspending agent. The nicosulfuron oil suspending agent is prepared from the following components in parts by mass: 20 to 30 parts of the nicosulfuron, 10 to 20 parts of vegetable oil, 3 to 8 parts of an emulsifying agent, 2 to 9 parts of a dispersing agent, 6 to 9 parts of caproic acid, 20 to 35 parts of epoxypropane, 5 to 10 parts of Iodobenzene diacetate and 4 to 12 parts of proteusbacillus vulgaris fermentation liquor. The preparation method comprises the following steps: preparing proteusbacillus vulgaris into the fermentation liquor; the insecticidal effect of the nicosulfuron oil suspending agent can be obviously improved; good durability and stability are realized; the probability that crops suffer from diseases and insect pests is effectively reduced; according to the present invention, the nicosulfuron dispersible oil suspending agent is prepared by adding the Iodobenzene diacetateas the dispersant and the emulsifier, such that the suspension rate of the product is up to more than 85%, the weeding performance of the nicosulfuron is substantially improved, the healthy growth environment is created for crops, and the method has characteristics of low preparation cost and wide application range.

Description

technical field [0001] The invention relates to the technical field of nicosulfuron, in particular to a preparation method of nicosulfuron oil suspension. Background technique [0002] Nicosulfuron is a systemic herbicide, which can be absorbed by the stems, leaves and roots of weeds, and then conducts in the plants, causing growth stagnation, chlorosis of stems and leaves, and gradual death of sensitive plants. Generally, they die within 20-25 days. However, it takes a long time to treat some perennial weeds in the case of low temperature. The effect of spraying before the 4-leaf stage after emergence is good, and the efficacy of spraying decreases when the seedlings are large. The drug has pre-emergence herbicidal activity. However, the activity is lower than that of post-emergence, and the suspension performance is an important index to ensure the weed control performance of nicosulfuron, so how to improve its suspension performance is extremely important. [0003] But t...

AI Technical Summary

Problems solved by technology

[0002] Nicosulfuron is a systemic herbicide, which can be absorbed by the stems, leaves and roots of weeds, and then conducts in the plants, causing growth stagnation, chlorosis of stems and leaves, and gradual death of sensitive plants. Generally, they die within 20-25 days. However, it takes a long time to treat some perennial weeds in the case of low temperature. The effect of spraying before the 4-leaf stage after emergence is good, and the efficacy of spraying decreases when the seedlings are large. The drug has pre-emergence herbicidal activity. However, the activity is lower than that of post-emergence, and the suspension performance is an important index to ensure the herbicidal performance of nicosulfuron, so how to improve its suspension performance is extremely important

[0003] But the nicosulfuron oil-suspension concentrate made by existing method on the one hand suspension rate is not high enough, and this just makes weeding effect unsatisfactory, and also do not add iodobenzenediacetic acid in the existing nicosulfuron oil-suspension concentrate, This also leads to its poor insecticidal effect