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Compound herbicide for preventing and removing ligularia virgaurea as well as preparation method and application method thereof

A herbicide and control technology, applied in the direction of herbicides and algicides, botany equipment and methods, application, etc., can solve the problems of the expansion of the damage area of ​​the yellow broom, the difficulty of herbicidal active substances, and the long production cycle , to achieve significant control effect, low toxicity, and cost reduction

Active Publication Date: 2014-07-09
QINGHAI ACAD OF ANIMAL SCI & VETERINARY MEDICINE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although biological herbicides do not produce pollution and have stable and long-lasting effects, it is difficult to extract herbicidal active substances, the production cycle is long, and the cost is high. These factors limit their large-scale application
[0004] So far, although people have recognized the extent of damage to grassland and local animal husbandry, due to the lack of effective control measures, the damage area of ​​Ligula chinensis is expanding day by day.

Method used

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  • Compound herbicide for preventing and removing ligularia virgaurea as well as preparation method and application method thereof
  • Compound herbicide for preventing and removing ligularia virgaurea as well as preparation method and application method thereof
  • Compound herbicide for preventing and removing ligularia virgaurea as well as preparation method and application method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037]Example 1: put tribenuron-methyl, bentazone, and clopyralid weighed according to the weight ratio into the mixer, add 5L of tap water, stir evenly, the stirring speed is 70r / min, and then add according to the weight ratio Sodium dodecylbenzenesulfonate, alkylphenol polyoxyethylene ether, polytrisiloxane, fully stirred and mixed, bottled and sealed. Among them, the weight percentage of each component is 20% of tribenuron-methyl, 30% of clopyralid, 40% of bentazone, 5% of sodium dodecylbenzenesulfonate; 4.8% of alkylphenol polyoxyethylene ether, polysilicon Oxane 0.2%. In 2010, a small-area control experiment was carried out on the natural grassland with serious hazards of Ligmus chinensis, located in Gongga Village, Taxiu Township, Guinan County, Hainan Prefecture, Qinghai Province. For conventional knapsack sprayer spraying, the dosage per hectare is 3000g, the spraying height is 1 meter, the spray width is 2 meters, and the pace is 1 meter / second. After 30 days of spr...

Embodiment 2

[0038] Example 2: Put the tribenuron-methyl, bentazone, and clopyralid weighed according to the weight ratio into the mixer, add 10L tap water, stir evenly, the stirring speed is 70r / min, and then add according to the weight ratio Sodium dodecylbenzenesulfonate, alkylphenol polyoxyethylene ether, polytrisiloxane, fully stirred and mixed, bottled and sealed. Among them, the weight percentage of each component is tribenuron-methyl 2%, clopyralid 5%, bentazone 90%, sodium dodecylbenzenesulfonate 0.2%; alkylphenol polyoxyethylene ether 0.1%, polysilicon Oxane 2.7%. In 2010, a small-area control experiment was carried out on the natural grassland with serious damage to Ligmus chinensis, located in Gongga Village, Taxiu Township, Guinan County, Hainan Prefecture, Qinghai Province. The stems and leaves were sprayed in the first ten days of July during the flowering period of Ligmus spp. For conventional knapsack sprayer spraying, the dosage per hectare is 2000g, the spraying height ...

Embodiment 3

[0039] Example 3: Put the tribenuron-methyl, bentazone, and clopyralid weighed according to the weight ratio into the mixer, add 20L tap water, stir evenly, the stirring speed is 70r / min, and then add according to the weight ratio Sodium dodecylbenzenesulfonate, alkylphenol polyoxyethylene ether, polytrisiloxane, fully stirred and mixed, bottled and sealed. Among them, the weight percentage of each component is tribenuron-methyl 15%, clopyralid 27%, bentazone 39.8%, sodium dodecylbenzene sulfonate 0.2%; alkylphenol polyoxyethylene ether 10%, polysilicon Oxane 8%. In 2010, a small-scale control experiment was carried out on the natural grassland with serious hazards of Ligmus spp. in Gongga Village, Taxiu Township, Guinan County, Hainan Prefecture, Qinghai Province. The stems and leaves were sprayed in mid-July during the flowering period of Ligmus spp. For conventional knapsack sprayer spraying, the dosage per hectare is 750g, the spraying height is 1 meter, the spray width i...

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Abstract

The invention discloses a compound herbicide for preventing and removing ligularia virgaurea as well as a preparation method and an application method thereof. The compound herbicide is composed of the following raw materials in percentage by weight: 2%-40% of tribenuron-methyl, 5%-40% of clopyralid, 40%-90% of bentazone and the balance being auxiliary agents. The preparation method of the compound herbicide comprises the following steps: adding the tribenuron-methyl, the bentazone and the clopyralid, which are weighed according to the weight ratio, into an agitator; adding 5L-20L of tap water and agitating uniformly at a low speed; then adding sodium dodecyl benzene sulfonate, alkylphenol polyoxyethylene and polytrisiloxane according to the weight ratio; sufficiently agitating and uniformly mixing; and filling bottles and sealing. The application method of the compound herbicide comprises the step of spraying the compound herbicide on stems and leaves of ligularia virgaurea at a flowering period, wherein the herbicide spraying amount is 750-3000 g / hectare. The compound herbicide has high selectivity, special target and obvious prevention and removing effects on the specific plant, ligularia virgaurea, has a good ecological effect and can protect the biological diversity of grass lands very well.

Description

Technical field [0001] The invention belongs to the technical field of weed control, and specifically relates to a compound herbicide for controlling and controlling Phytophthora spp. and its preparation and use methods. Background technique [0002] Huang Biaowu( Ligularia virgaurea ) is a perennial poisonous plant belonging to the Asteraceae family and is widely distributed in the alpine grasslands of the Tibetan Plateau and Nepal. Because the branches and leaves of Lilacia genus contain white toxic emulsion, livestock will be poisoned and die after eating them. See "Research on Renewal Countermeasures of Three Ligusticum Plants in the Eastern Qinghai-Tibet Plateau" by Ma Ruijun, Du Guozhen, Liu Zuojun, and Chen Jiakuan, "Journal of Grassland Science", 2002..11:29-36. At the same time, C. elata has both seed and rhizome reproduction capabilities, and the low frequency of livestock feeding on it has caused its coverage in natural grasslands to rise sharply from 5% to 20% ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N47/36A01P13/00A01N43/88A01N43/40
Inventor 鲍根生王宏生曾辉
Owner QINGHAI ACAD OF ANIMAL SCI & VETERINARY MEDICINE
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