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Ternary compound herbicides on paddy field weed and use thereof

A herbicide and paddy field technology, applied in the direction of herbicide and algicide, application, biocide, etc., to achieve the effect of extending the use period, reducing production costs, and convenient use

Active Publication Date: 2009-03-25
陕西丰稷科技发展股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The herbicide can solve the problem of one-time chemical weeding in rice transplanting fields and rice direct seeding fields

Method used

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  • Ternary compound herbicides on paddy field weed and use thereof
  • Ternary compound herbicides on paddy field weed and use thereof
  • Ternary compound herbicides on paddy field weed and use thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Embodiment 1 (prescription one):

[0030] 41% WP

[0031] The present embodiment is made up of the composition of following percentage by weight:

[0032] (1) quinclorac: 35%

[0033] (2) Bensulfuron-methyl: 5%

[0034] (3) Pyrazosulfuron-methyl: 1%

[0035] (4) Sodium dodecylbenzenesulfonate 10%

[0036] (5) Methylcellulose 6%

[0037] (6) Kaolin 14%

[0038] (7) Silica 5%

[0039] (8) Calcium carbonate supplemented to 100%.

[0040] The dosage of commercial preparation per mu is 40 grams, and the dosage of active ingredients is 14 grams of quinclorac, 2 grams of bensulfuron-methyl, and 0.4 grams of pyrazosulfuron-methyl.

[0041] The specific implementation method of the experimental research: 28 grams of 50% quinclorac + 20 grams of 10% bensulfuron-methyl + 4 grams of 10% pyrazosulfuron-methyl for mu. The above three preparations are uniformly mixed according to the prescribed dosage for later use. See attached table 1 for the test results.

Embodiment 2

[0042] Embodiment 2 (prescription two):

[0043] 34% wettable powder

[0044] The present embodiment is made up of the composition of following percentage by weight:

[0045] (1) quinclorac: 30%

[0046] (2) Bensulfuron-methyl: 1%

[0047] (3) Pyrazosulfuron-methyl: 3%

[0048] The dosage of the preparation per mu is 40 grams, and the dosage of active ingredients is 12 grams of quinclorac, 0.4 grams of bensulfuron-methyl, and 1.2 grams of pyrazosulfuron-methyl.

[0049] The specific implementation method of the experimental research: 24 grams of 50% quinclorac + 4 grams of 10% bensulfuron-methyl + 12 grams of 10% pyrazosulfuron-methyl for mu. The above three preparations are uniformly mixed according to the prescribed dosage for later use. See attached table 1 for the test results.

Embodiment 3

[0050] Embodiment 3 (prescription three):

[0051] 46.25% wettable powder

[0052] The present embodiment is made up of the composition of following percentage by weight:

[0053] (1) quinclorac: 40%

[0054] (2) Bensulfuron-methyl: 6%

[0055] (3) Pyrazosulfuron-methyl: 0.25%

[0056] The dosage of the preparation per mu is 40 grams, and the dosage of active ingredients is 16 grams of quinclorac, 2.4 grams of bensulfuron-methyl, and 0.1 grams of pyrazosulfuron-methyl.

[0057] The specific implementation method of the experimental research: 32 grams of 50% quinclorac + 24 grams of 10% bensulfuron-methyl + 1 gram of 10% pyrazosulfuron-methyl for mu. The above three preparations are uniformly mixed according to the prescribed dosage for later use. See attached table 1 for the test results.

[0058] Attached Table 1 The herbicidal effect of the herbicide of the present invention 1

[0059]

[0060] Note: The above codes 1-3 are the herbicide formulations in Examples 1-...

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Abstract

The invention provides a paddy field ternary complex herbicide compound, which has the following main active ingredients by weight percentage: 1.4-58.33 of quinclorac, 0.04-9.6 of bensulfuron-methyl, and 0.02-5 of pyrazosulfuron-ethyl. The total active ingredients account for 1.56-66.4% of the preparation based on weight percentage. The active ingredients are taken as the main body and used with the ultra-fine powders commonly used in the wettable powder and composed of wetting agent, dispersing agent, additive, filler and the like through even mixing and processing so as to form the complex herbicide wettable powder. The herbicide compound is highly efficient, broad-spectrum, safe and widely used, which can control the vast majority of weed damage in paddy fields within one medication use and is an ideal chemical herbicide in paddy fields.

Description

technical field [0001] The invention relates to a herbicide, in particular to a paddy field herbicide and its application. Background technique [0002] At present, the planting methods of rice have various forms such as direct seeding (also divided into sowing and on-demand), transplanting (dry seedling raising and wet seedling raising), throwing seedlings (floppy disk seedling raising and dry seedling raising). The occurrence frequency of weeds in paddy fields is high and the damage is serious. Weeds have different weeding time and harm time, as well as different ways and degrees of harm. For example, Gramineae weeds begin to do harm in the early stage of rice growth, while Cyperaceae and other weeds begin to do harm in the middle stage of rice growth. Stephaniaceae proliferates in large numbers in the alternating wet and dry environment, while weeds such as scorpion and algae are easy to harm in the old rice fields with deep water, and weeds such as Compositae, Scrophul...

Claims

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Application Information

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IPC IPC(8): A01N43/42A01N47/36A01P13/00
Inventor 任政军
Owner 陕西丰稷科技发展股份有限公司
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