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A compound herbicide for preventing and controlling Ligularia spp. and its preparation method and use method

A herbicide and control technology, applied in the direction of herbicides and algicides, botanical equipment and methods, applications, etc., can solve the problems of long soil residue time, long effective time, and difficult to obtain components, so as to increase the yield of pasture and quality, the shortening of residual time, and the effect of increasing grass yield

Active Publication Date: 2021-05-18
QINGHAI UNIVERSITY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Therefore, the technical problem to be solved in the present invention is to overcome the disadvantages of the prior art such as high cost, difficult components, long effective time and long soil residual time of the compound herbicide for controlling Ligularia spp. Ligularia chinensis compound herbicide and its preparation method and use method

Method used

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  • A compound herbicide for preventing and controlling Ligularia spp. and its preparation method and use method
  • A compound herbicide for preventing and controlling Ligularia spp. and its preparation method and use method
  • A compound herbicide for preventing and controlling Ligularia spp. and its preparation method and use method

Examples

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Embodiment 1

[0039] The present embodiment provides a compound herbicide for controlling Ligularia spp., comprising the following components: 40 parts of 2,4-D butyl ester; 50 parts of tribenuron-methyl; 40 parts of urea; 10 parts of sodium dodecylbenzenesulfonate 5 parts; 5 parts of alkylphenol polyoxyethylene ether; 8 parts of ethoxy-modified trisiloxane.

[0040] The preparation method of described herbicide is:

[0041] Slowly add 2,4-D butyl ester into the stirring tank, dilute with 5 liters of tap water, stir at 50 rpm for 5 minutes, and mix the diluted solution evenly; then, weigh the corresponding mass of benzenesulfonate Put the powder into the mixing tank and stir for 10 minutes at a speed of 80 rpm; then, add sodium dodecylsulfonate, alkylphenol polyoxyethylene ether and ethoxylated trisiloxane in sequence, and control the speed at Stir at 120 rpm for 30 minutes to achieve full mixing of the agents in the mixing tank to obtain a mixed solution A, and separate the urea and the m...

Embodiment 2

[0043] This example provides a compound herbicide for controlling Ligularia syringae, comprising the following components: 90 parts of 2,4-D butyl ester; 10 parts of tribenuron-methyl; 70 parts of urea; 1 part of sodium dodecylbenzenesulfonate 15 parts; 15 parts of alkylphenol polyoxyethylene ether; 4 parts of ethoxy-modified trisiloxane.

[0044] The preparation method of described herbicide is:

[0045] Slowly add 2,4-D butyl ester into the stirring tank, dilute with 9 liters of tap water, stir at 50 rpm for 5 minutes, and mix the diluted solution evenly; then, weigh the corresponding mass of benzenesulfonate Put the powder into the mixing tank and stir for 10 minutes at a speed of 80 rpm; then, add sodium dodecylsulfonate, alkylphenol polyoxyethylene ether and ethoxylated trisiloxane in sequence, and control the speed at Stir at 120 rpm for 30 minutes to achieve full mixing of the agents in the mixing tank to obtain a mixed solution A, and separate the urea and the mixed s...

Embodiment 3

[0047] The present example provides a compound herbicide for controlling Ligularia spp., comprising the following components: 60 parts of 2,4-D butyl ester; 30 parts of tribenuron-methyl; 55 parts of urea; 6 parts of sodium dodecylbenzenesulfonate 10 parts; 10 parts of alkylphenol polyoxyethylene ether; 6 parts of ethoxy-modified trisiloxane.

[0048] The preparation method of described herbicide is:

[0049] Slowly add 2,4-D butyl ester into the stirring tank, dilute with 6 liters of tap water, stir at 50 rpm for 5 minutes, and mix the diluted solution evenly; then, weigh the corresponding mass of benzenesulfonate Put the powder into the mixing tank and stir for 10 minutes at a speed of 80 rpm; then, add sodium dodecylsulfonate, alkylphenol polyoxyethylene ether and ethoxylated trisiloxane in sequence, and control the speed at Stir at 120 rpm for 30 minutes to achieve full mixing of the agents in the mixing tank to obtain a mixed solution A, and separate the urea and the mix...

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Abstract

The invention belongs to the technical field of herbicides, and in particular relates to a novel compound herbicide for preventing and controlling Ligularia spp. and its preparation method and application method. The herbicide comprises the following components by weight, 40-90 parts of 2,4-D butyl ester; 10-50 parts of tribenuron-methyl; 40-70 parts of urea; 1-10 parts of anionic surfactant; 15 parts; polytrisiloxane 4‑8 parts. The herbicide provided by the present invention is suitable for the natural grasslands where Ligmus chinensis occurs in a large area. After 15 days of spraying, Ligia spp. begins to die, and the effect is quick; generally, no drug residue can be detected in the plants in about 10 days, and after about 7 days, No drug residues can be detected in the soil, the degradation is fast, the toxicity is small, and the quality and yield of forage grass are obviously improved. At the same time, the cost can be reduced by 77.8%, which greatly saves the herdsmen's prevention and control expenses.

Description

technical field [0001] The invention belongs to the technical field of herbicides, and in particular relates to a novel compound herbicide for preventing and controlling Ligularia spp. and its preparation method and application method. Background technique [0002] Ligularia virgaurea (Ligularia virgaurea) is a poisonous perennial plant of the genus Ligularia in the Asteraceae family. It is widely distributed in the alpine grasslands of the Qinghai-Tibet Plateau and Nepal. Because the branches and leaves of Ligularia chinensis contain white toxic emulsion, livestock will be poisoned and die after eating. At the same time, Lignus chinensis has both seed reproduction and rhizome reproduction capabilities, and its coverage in natural grasslands has continued to increase, seriously reducing the yield of edible pastures and causing major losses to the development of local animal husbandry. [0003] At present, the control methods of grassland poisonous weeds mainly include manua...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01N47/36A01N39/04A01P13/00
CPCA01N39/04A01N47/36
Inventor 鲍根生王宏生
Owner QINGHAI UNIVERSITY
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