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Herbicidal compositions and its application

A herbicidal composition and compound technology, applied in the field of pesticides, can solve the problems of low herbicidal activity of grass weeds and low activity of grass weeds, so as to reduce the number of spraying, widen the interval of spraying, and improve the efficacy long-lasting effect

Active Publication Date: 2011-08-17
ADAMA HUIFENG (JIANGSU) LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These herbicides are only limited to the control of broadleaf weeds in the field, and their activity against grassy weeds is very low
This kind of herbicide is also commonly used in corn field at present, the price is moderate, and it is safe for crops and subsequent crops. Low

Method used

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  • Herbicidal compositions and its application
  • Herbicidal compositions and its application
  • Herbicidal compositions and its application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Embodiment 1. Water-dispersible granules

[0026] When in compound (b), R is Na, and X is when Br, the active ingredient mixture of 75 parts by weight (9 parts by weight of bromoxynil sodium salt+66 parts by weight of atrazine), 4 parts by weight of lauryl Sodium sulfate, 9 parts by weight of calcium lignosulfonate, 2 parts by weight of polyvinyl alcohol and 10 parts by weight of kaolin.

[0027] After the above ingredients are mixed, they are ground into fine powder in a plug-type disc mill, and the powder is granulated in a fluidized bed by spraying water as a granulating liquid to obtain the herbicidal composition of the present invention.

Embodiment 2

[0028] Example 2. Wettable powder

[0029] When in compound (b), R is K and X is I, 80 parts by weight of the active ingredient mixture (35 parts by weight of ioxynil potassium salt+atrazine of 45 parts by weight), 3 parts by weight of alkyl Naphthalene formaldehyde condensate sodium sulfonate, 2 parts by weight of sodium dodecylbenzenesulfonate, 1 part by weight of glycerin, and 14 parts by weight of white carbon black are mixed, and through superfine grinding, the powder particles reach the fineness requirement, And use a double-helix mixer and a coulter mixer to mix the product for many times, so that the product is evenly mixed, so as to prepare the high-content dosage form of the herbicidal composition of the present invention.

Embodiment 3

[0030] Example 3. Granules

[0031] When in compound (b), R is Na, and X is Br, the active ingredient mixture of 28 parts by weight (22 parts by weight of bromoxynil sodium salt + atrazine of 6 parts by weight), 4 parts by weight of poly Vinyl alcohol, 8 parts by weight of liquid paraffin, 3 parts by weight of calcium stearate, and clay of 57 parts by weight, the above materials are mixed to obtain 100 parts of powder mixture, and an appropriate amount of water is added, mixed with a small kneader, and then manufactured The granules are sized with a granulator, dried and sieved to obtain the herbicidal composition of the present invention.

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Abstract

The invention discloses a weeding combination, which is a duality weeding combination consisting of the effective components of compound (a) and compound (b). The compound (a) is atrazine (2-chlorine-4-ethylamino-6-isopropylamino-1, 3, 5-triazine); the compound(b) is a compound with the structure of formula (I), wherein, R is Na or K, and X is Br or I; the weight ratio of compound (a) and compound (b) is 1: 0.08-8. The invention further discloses an application of the weeding combination, i.e., the weeding combination is used for preventing and eliminating the ruderal weeds of gramineae and broadleaf in farmlands of corn, sugar cane, etc., after seedling. The prevention effect of the combination is better than the activity in the separate use of herbicides, and the combination can bring surprising enhancing effect. Additionally, the combination has positive effect on the following aspects such as expanding the scope of prevention and cure of ruderal weeds, reducing the times of application and lowering the cost of application, etc. The combination of the invention is safe to the growth of the existing corn and later crops.

Description

technical field [0001] The invention belongs to the field of pesticides, in particular to a herbicidal composition with improved performance. Background technique [0002] Atrazine is a triazine selective herbicide, which is mainly used to control annual grass weeds and broadleaf weeds in fields of corn, sorghum, sugar cane, tea gardens, orchards and rubber plantations. It is a selective systemic conduction type pre-emergence and post-emergence herbicide, which is mainly absorbed by plant roots and transmitted to meristematic tissues and leaves, and kills weeds by inhibiting electron transfer in plant photosynthesis. Symptoms of weed poisoning are manifested as chlorosis at the tips and edges of the leaves, which then spread to the leaves and eventually lead to the death of the whole plant. Since the ketone in corn can decompose atrazine, it is very safe for corn. However, if it is used improperly or if the application rate is too large, it will affect the safety of the gr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01N43/66A01P13/00A01N37/34
Inventor 仲汉根
Owner ADAMA HUIFENG (JIANGSU) LTD
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