BIOLOGICAL EFFECTIVENESS OF HERBICIDES USED AGAINST WEEDS IN SOYBEAN CROPS
Abstract
The competitiveness of cultivated plants and weeds was determined by the quantitative-weight method. Weeds are limiting factors for the survival of the crops and greatly reduce their productivity. With an increase in the level of contamination of soybean crops, the total loss of grain from weeds reaches 5.4-13.7 C / ha.
As the results of experiments have shown, the herbicide Fabian is very effective against such an annual dicotyledonous weed as white Mar, perennial field bindweed and perennial grass weeds-creeping Wheatgrass and humus. As a result, the overall effectiveness against annual dicotyledons was 80.9%, perennial dicotyledons – 84.9% and perennial cereals – only 45.4%.
The biological effectiveness of the zenkor ultra herbicide based on metribuzin against a similar weed component in soybean crops was 40.3 and 41.7%, respectively. All variants of the experiment showed a negative tendency to reduce the biological effectiveness of herbicides over time.
About the Authors
A. Akmullaeva
Research institute of biotechnology problems, Zhetysu University
Kazakhstan
Kazakhstan
Taldykorgan
U. Yesseikyzy
Research institute of biotechnology problems, Zhetysu University
Kazakhstan
Kazakhstan
Taldykorgan
M. Abilmazhin
Research institute of biotechnology problems, Zhetysu University
Kazakhstan
Kazakhstan
Taldykorgan
G. Talgarbayeva
Research institute of biotechnology problems, Zhetysu University
Kazakhstan
Kazakhstan
Taldykorgan
A. Rinar
Research institute of biotechnology problems, Zhetysu University
Kazakhstan
Kazakhstan
Taldykorgan
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Review
For citations:
Akmullaeva A., Yesseikyzy U., Abilmazhin M., Talgarbayeva G., Rinar A. BIOLOGICAL EFFECTIVENESS OF HERBICIDES USED AGAINST WEEDS IN SOYBEAN CROPS. Vestnik of M. Kozybayev North Kazakhstan University. 2020;(4 (49)):15-21. (In Kazakh)
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