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Weeding composition

A herbicide composition and herbicide technology, applied in the direction of herbicides, algicides, biocides, animal repellents, etc., can solve the problems that the control effect is difficult to guarantee, weeds develop resistance, and the old barnyardgrass is ineffective. , to achieve the effects of long duration, reduced dosage, and reduced pollution

Inactive Publication Date: 2012-09-12
LIANBAO CROP TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In recent years, due to the large-scale use of some herbicide varieties alone, many weeds have developed resistance, and the control effect is difficult to guarantee
In paddy fields, the problem of weed resistance is particularly prominent. Malignant weeds such as barnyardgrass, barnyard grass, daughter of a thousand gold, and water peanut have increased significantly, becoming new dominant grass species in many areas, and some of the main weeds are not suitable for commonly used weed control. Sensitivity to pesticides decreased. For example, the control effects of Ding·Benzyl, Butachlor, and Acetochlor on barnyardgrass had dropped below 30%, and they were almost ineffective against older barnyardgrass.
At the same time, the control effect of sulfonylurea herbicides on major weeds such as sedges also showed a downward trend.

Method used

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  • Weeding composition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Embodiment 1: the control effect test of herbicidal composition of the present invention to weeds

[0034] The test is a water-dispersible granule prepared by using flubisulfuron-methyl and fenpyramid as active ingredients and adding appropriate amount of adjuvants. See Table 1 for the test treatments and application rates.

[0035] Table 1 Test treatment and application rate

[0036] deal with

Test drug

Application rate (g(a.i.) / hm 2 )

1

Flubisulfuron

25

2

Methazone

120

3

Flubisulfuron-methyl + fenpyramid

15+80

4

Flubisulfuron-methyl + fenpyramid

15+90

[0037] 5

Flubisulfuron-methyl + fenpyramid

20+80

6

Flubisulfuron-methyl + fenpyramid

20+100

7

Flubisulfuron-methyl + fenpyramid

20+110

8

Flubisulfuron-methyl + fenpyramid

25+90

9

Flubisulfuron-methyl + fenpyramid

25+100

...

Embodiment 2

[0042] Example 2: 10% flubisulfuron-oxazone emulsifiable concentrate

[0043] Flupisulfuron-methyl 2%, fenpyramid 8%, Nongru 500# 2%, Nongru 600# 8%, solvent oil No. 200 make up 100%, after fully mixing and dissolving, 10% flubisulfuron-methyl is obtained · Methazone emulsifiable concentrate.

[0044] The herbicide prepared in this example is compared with the herbicide made from flubisulfuron-methyl or fenpyramid with a single active ingredient, and the amount of each active ingredient is used as a standard calculation. The amount of each active ingredient in the herbicide is less than Under the premise of the dosage of each single agent or compound active ingredient, its control effect is higher than that of a single agent, and can effectively control most of the weeds in the paddy field. The control effect of Cyperaceae weeds such as grass and special-shaped sedge is enhanced.

Embodiment 3

[0045] Example 3: 20% flubisulfuron-oxazone wettable powder

[0046] Flubisulfuron-methyl 5%, fenpyramid 15%, NNO4%, sodium dodecylbenzenesulfonate 3%, BX4%, kaolin make up 100%, after thorough mixing, jet milling, and mixing, 20% can be obtained Flubisulfuron-oxazone wettable powder.

[0047] The herbicide prepared in this example is compared with the herbicide made from flubisulfuron-methyl or fenpyramid with a single active ingredient, and the amount of each active ingredient is used as a standard calculation. The amount of each active ingredient in the herbicide is less than Under the premise of the dosage of each single agent or compound active ingredient, its control effect is higher than that of a single agent, and can effectively control most of the weeds in the paddy field. The control effect of Cyperaceae weeds such as grass and special-shaped sedge is enhanced.

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PUM

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Abstract

The invention relates to the field of pesticide preparations and discloses a weeding composition, which is made of flucetosulfuron and metamifop in a weight ratio of 1:3-6. The weeding composition can be made into emulsifiable solution, wettable powder, water dispersible granules and the like with conventional auxiliaries and carriers / solvents by the existing methods. The weeding composition can be used for removing most of paddy field weeds, effect of controlling gramineous weeds such as barnyard grass and Leptochloa chinensis, and cyperaceae weeds such as Monochoria vaginalis and Cyperus difformis can be improved, consumption of effective ingredients is lowered, service cost is low, and the weeding composition has the advantages of long application period, long lasting period, safety to succeeding crop and the like.

Description

technical field [0001] The invention relates to the field of pesticide preparations, in particular to a paddy field herbicidal composition whose active ingredients are composed of flubisulfuron-methyl and fenpyramid. Background technique [0002] Rice is one of the main food crops in the world. Nearly half of the world's population, including almost the entire population of East Asia and Southeast Asia, live on rice, and its production covers all continents except Antarctica. In the late last century, the average annual rice output in the world was about 400 billion kilograms, and the planting area was about 145 million hectares 2 . Rice is also the most important food crop in my country. my country's rice sowing area accounts for 1 / 4 of the country's grain crops, about 35 million ha per year 2 , while production accounts for more than half. Regardless of the planting area and output, it ranks first in my country's food crops. [0003] There have always been a large num...

Claims

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Application Information

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IPC IPC(8): A01N47/36A01N43/76A01P13/00
Inventor 王洲卢桂鲜
Owner LIANBAO CROP TECH
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