Method for improving effect of preventing and controlling wheat weeds of herbicide

A herbicide and weed technology, applied in herbicides and algicides, botanical equipment and methods, biocides, etc., can solve the problems of increased dosage of herbicides and reduced control effect

Active Publication Date: 2018-09-04
INST OF PLANT PROTECTION HEBEI ACAD OF AGRI & FORESTRY SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the applicant has found through research that although mefenpyr-ethyl can improve the drug resistance of wheat to herbicides, it also improves the drug resistance of weeds such as barley wheat to herbicides, making the herbicides resistant to such weeds. Decreased grass control efficiency, resulting in a substantial increase in the dosage of herbicides used in production

Method used

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  • Method for improving effect of preventing and controlling wheat weeds of herbicide
  • Method for improving effect of preventing and controlling wheat weeds of herbicide
  • Method for improving effect of preventing and controlling wheat weeds of herbicide

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] Embodiment 1 30% mefenpyr-ethyl suspension seed coating

[0050] In percent by weight, the formula is as follows:

[0051] Metrafenpyr 30%, Sodium Lauryl Sulfate 5%, Sodium Dibutyl Naphthalene Sulfonate 7%, Xanthan Gum 1%, Polyethylene Glycol 3%, Acid Scarlet 0.5%, Lauric Acid 1%, Ethylene Glycol Alcohol 2%, sodium benzoate 1%, deionized water make up the balance.

[0052] The preparation method is as follows: pass various solid components through a 320-mesh sieve, and mix pyraclofen-ethyl, sodium lauryl sulfate, sodium dibutylnaphthalene sulfonate, xanthan gum, polyethylene glycol, acid scarlet, lauric acid, Add ethylene glycol, sodium benzoate, and deionized water to the sand mill in proportion, stir at high speed for pre-dispersion for 30 minutes, add sanding medium zirconium beads (medium coefficient is 1), sand mill for 2.5 hours, remove sanding medium and impurities by filtration .

Embodiment 2

[0053] Example 2 Dispersible powder for 60% mefenpyr-ethyl seed treatment

[0054] In percent by weight, the formula is as follows:

[0055] Metrafenpyr 60%, sodium dodecylbenzene sulfonate 5%, lignosulfonate 5%, polyvinyl alcohol 1.5%, rhodamine 0.5%, white clay 3%, xanthan gum 1%, bentonite supplement margin.

[0056] The preparation method is as follows: adding pyraclofen-ethyl, sodium dodecylbenzenesulfonate, lignosulfonate, polyvinyl alcohol, rhodamine, white clay, xanthan gum, and bentonite in proportion to high-speed multifunctional pulverization machine, initially mixed and crushed for 10 minutes, and then transferred to an air-induced pulverizer for deep crushing for 1 hour.

Embodiment 370

[0057] Example 3 70% mefenpyr-ethyl seed treatment dry powder

[0058] In percent by weight, the formula is as follows:

[0059] 70% of pyraclofen-ethyl, 6% of nonylphenol polyoxyethylene ether, 5% of polyvinyl alcohol, 1.5% of polyvinyl acetate, 0.5% of rhodamine 2B, and white carbon black make up the balance.

[0060] The preparation method is as follows: add pyraclofen-ethyl technical substance, nonylphenol polyoxyethylene ether, polyvinyl alcohol, polyvinyl acetate, rhodamine 2B, and white carbon black into a high-speed multifunctional pulverizer in proportion, and initially mix Crushed for 10 minutes, then transferred to an air-induced pulverizer for deep pulverization for 1 hour.

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Abstract

The invention relates to a method for improving effect of preventing and controlling wheat weeds of a herbicide. The method comprises the following steps: treating wheat seeds by using mefenpyr-diethyl and applying the herbicide to perform prevention and control, wherein treatment comprises coating, seed stirring or seed soaking. Relative to the prior art, the method has the advantages of reducingthe use amount of the herbicide, improving the effect of preventing and controlling weeds by the herbicide and improving the safety on the wheat by the herbicide.

Description

technical field [0001] The invention relates to the technical field of weed control, in particular to a method for improving the effect of herbicides on weed control in wheat fields. Background technique [0002] According to reports, the occurrence area of ​​weeds in my country's wheat fields accounts for more than 55% of the planting area, the serious damage area accounts for 28%, and the average yield loss reaches 15%. Severe production reduction or even no harvest; at the same time, with the continuous increase of labor costs in our country, the use of herbicides to control the damage of weeds in wheat fields has become a necessary measure for wheat production. However, herbicides, as the most widely used chemical pesticides, have been used in large quantities for a long time, causing serious environmental pollution and ecological damage. Therefore, how to improve the control effect of herbicides on weeds and reduce the amount of herbicides is a problem that needs to be s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N25/32A01N47/36A01P13/00
CPCA01N25/32A01N47/36Y02A40/10
Inventor 袁立兵马广源耿亚玲费志平王华杜鹏程
Owner INST OF PLANT PROTECTION HEBEI ACAD OF AGRI & FORESTRY SCI
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