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Herbicide composition for paddy field

A herbicidal composition and the technology of the composition are applied in the direction of chemicals, herbicides and algicides used for biological control, application, etc., and can solve the problems of ineffective control of perennial grass weeds, inhibition of crop growth, and after-effects. The impact of stubble crops and other issues, to achieve good control effect, crop safety, low residue effect

Active Publication Date: 2014-03-19
HEFEI XINGYU CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Penoxsulam has a good control effect on a variety of weeds common in paddy fields, including barnyard grass, annual sedge and a variety of broad-leaved grasses, but the control effect on perennial grass weeds is not obvious
The activity of this agent is high, and when the dosage is large, it will inhibit the growth of crops and have a certain impact on subsequent crops.

Method used

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  • Herbicide composition for paddy field
  • Herbicide composition for paddy field
  • Herbicide composition for paddy field

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] The weight ratio of each component of 25% penoxsulam·bisfluben·fenoxaprop-ethyl EC:

[0016] Penoxsulam 2%,

[0017] Bispyribac 10%,

[0018] Fenoxaprop-P-P 13%,

[0019] DMSO 8%,

[0020] Methanol 5%,

[0021] Nongru No. 600 7%,

[0022] Nongru No. 500 6%

[0023] Xylene Make up 100%.

[0024] Preparation method: put all the materials into the reaction kettle at one time, and make them fully mixed under the condition of stirring.

[0025] 25% Penoxsulam · Bispyribac · Fenoxaprop-P-P Emulsion Efficacy Report: Rice 2-4 leaf stage, weed 2-5 leaf stage application, 30 days after application, plant control effect results as follows:

[0026]

[0027] The test results show that the herbicidal effect of mixed use of penoxsulam, bisfluben, and fenoxaprop-ethyl is higher than that of any single agent in the components, which is beneficial to increase the efficacy of each other, and has no antagonistic effect.

Embodiment 2

[0029] The weight ratio of each component of 75% penoxsulam·bisfluben·fluroxypyr wettable powder:

[0030] Penoxsulam 5%,

[0031] Bispyribac 30%,

[0032] Fluroxypyr 40%,

[0033] Methylcellulose 3%,

[0034] NNO 2%,

[0035] High clay 20%.

[0036] Preparation method: put all the materials into the reaction kettle at one time, make them fully mixed under stirring conditions, wet pulverize, pour to a certain fineness, and then spray dry to obtain the product.

[0037] Report on the efficacy of 75% penoxsulam · bispyribac · fluroxypyr wettable powder: rice 2-4 leaf stage, weeds 2-5 leaf stage application, 30 days after application, plant control effect investigation The result is as follows:

[0038]

[0039] The test results show that the herbicidal effect of mixed use of penoxsulam, bisfluben, and fluroxyfen is higher than that of any single agent in the components, which is beneficial to increase the efficacy of each other, and has no antagonistic effect.

Embodiment 3

[0041] The weight ratio of each component of 35% penoxsulam·bisfluben·pyrazone-ethyl oil suspension:

[0042] Penoxsulam 2%,

[0043] Bispyribac 23%,

[0044] Mefentrazone-ethyl 10%,

[0045] Silica 4%,

[0046] Nongru No. 600 7%,

[0047] Nongru No. 500 6%,

[0048] Nongru No. 700 2%,

[0049] Methyl Oleate Make up 100%.

[0050] Preparation method: put all the materials into the reaction kettle at one time, make them fully mixed under the condition of stirring, use wet grinding to make the average particle size below 5 μm, and then obtain the oil suspension.

[0051] 35% Penoxsulam·Bisafluben·Mefentrazone-ethyl oil suspension drug efficacy report: rice 2-4 leaf stage, weed 2-5 leaf stage application, 30 days after the application of plant control effect investigation as follows:

[0052]

[0053] The test results show that the herbicidal effect of the mixed use of penoxsulam, bisfluben, and penoxazone is higher than that of any single agent in the components, whic...

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Abstract

The invention discloses a herbicide composition for a paddy field. The composition comprises a component (a), a component (b) and a component (c), wherein (a) is penoxsulam, (b) is bispyribac-sodium, and (c) is at least one of fenoxaprop-p-ethyl, fluroxypyr and carfentrazone-ethyl; and the weight ratio of the component (a) to the component (b) to the component (c) is 1:1-70:1-70. The composition preparation of the invention has the characteristics of efficient weeding effect, wide weeding spectrum, low residue, safety for crops, low cost, and good prevention and control effects on broadleaf weed, cyperaceae weed and some perennial weeds, and can basically control the harm of the whole season seeds to the paddy field after one-time application.

Description

technical field [0001] The present invention relates to a herbicidal composition for paddy fields, especially penoxsulam and bispyribac-fem and one or more of fenoxaprop-ethyl, fluroxypyr and mefentrazone-ethyl A compounded herbicidal composition. It belongs to the technical field of pesticides. Background technique [0002] The sustainable development of agriculture and rural areas is the fundamental guarantee for China's sustainable development. Protecting the rural and agricultural environment is an important part of implementing sustainable development, and the production and use of pesticides must also meet the requirements of sustainable development strategies. Fundamentally ensuring the sustainable development of agriculture and rural areas is the main theme and direction of current researchers. [0003] Penoxsulam is a conductive herbicide, which is absorbed by stems, leaves, young shoots and roots, and then transmitted to meristems through xylem and phloem, inhib...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01N43/90A01N43/54A01N43/76A01N43/40A01N43/653A01P13/00
Inventor 鲍恩付周敏洪鹏达王传品余志欢
Owner HEFEI XINGYU CHEM
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