Herbicides:a tool for weed control
The presence of weeds or weeds it is one of the main problems facing agricultural production. We can define them as any species that grows in an inappropriate place and time, hindering the farmer's production plans and putting crop yields and the quality of the product to be harvested at risk.
weed control
The chemical method is carried out by usingherbicides. They are complex chemical products, used in agricultural production for more than 50 years and whose use is aimed at controlling and/or eradicating weeds. Herbicides inhibit or stop their development, in order to provide exclusivity in the use of soil nutrients, sunlight and water to the crop of interest. All herbicides have different names, made up of:
- Technical name: is the active ingredient of the commercial product and is standardized.
- Chemical name: is the name of the molecule that makes up the active ingredient.
- Tradenames: is the name designated for marketing, and varies according to the country of sale.
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Application time |
Pre-sowing |
Incorporated |
Application on the ground and subsequent incorporation by tillage |
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not incorporated |
Application on the ground surface |
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Post-sowing |
pre-emergent |
They are applied after planting the crop, during the germination period and before the emergence of weeds. |
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post-emergence |
It should be applied after the emergence of the crop and weeds |
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Type of action |
Contact |
They only remove the parts of the plant with which the product comes into contact, and they have very little mobility within the vascular system of the plant. Recommended use for annual cycle weeds. |
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systemic |
Once absorbed, they are translocated within the plant, even to its roots or underground organs. Recommended use for the control of perennial cycle weeds. |
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Selectivity |
selective |
If the dose and time of application are controlled, they are capable of eliminating certain types of plants without significantly harming others. |
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Non-selective or total |
They cause damage to any type of vegetation present. |
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