4/1/2024 0 Comments Gm tech 2 logo![]() ![]() Weeds that emerge during the growing season are controlled using narrow-spectrum or selective herbicides. This is to prevent their crops from being killed together with the weeds. Then they apply broad-spectrum or non-selective herbicides (one that can kill all plants) to further reduce weed growth just before their crop germinates. Generally, they till their soil before planting to reduce the number of weeds present in the field. The tandem technique of soil-tilling and herbicide application is an example of how farmers control weeds in their farms. Similarly, many have argued that the heavy use of herbicides has led to groundwater contaminations, the death of several wildlife species and has also been attributed to various human and animal illnesses. For this reason, more and more farmers prefer reduced or no-till methods of farming. Unfortunately, tillage leaves valuable topsoil exposed to wind and water erosion, a serious long-term consequence for the environment. If left uncontrolled, weeds can reduce crop yields significantly.įarmers can fight weeds with tillage, hand weeding, herbicides, or typically a combination of all techniques. Weeds not only compete with crops for water, nutrients, sunlight, and space but also harbor insects and diseases clog irrigation and drainage systems undermine crop quality and deposit weed seeds into crop harvests. ![]() Weeds are a constant problem in farmers fields. ![]()
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