Corn herbicide solves weed problem. As the crop grows, it needs to remove weeds. On a small plot it is easy to cope with them, which cannot be said about large-scale plantations. A large number of weeds between the beds makes mechanical weeding difficult, and the growth and development of the crop slows down. Herbicides are effective in this matter if they are selected correctly and the person knows how to use them.
What it is?
Herbicides are chemicals that are used to kill unwanted plants on land.Preparations containing herbicides help remove weeds in a short period of time. Based on the type of influence, they are divided into drugs of continuous and selective influence. The latter are more often used to protect crops from weeds. They are chosen when corn cultivation.
More about classification
Almost all types of weeds are annual grasses. Reproduction occurs through seeds and they live only for a season. Perennial weeds have a developed root system that goes deep into the soil. This advantage makes it possible for a plant to develop from a piece of root, which is often left behind after poor weeding.
With the help of herbicides, a person can get rid of a specific type of weed or all of them at once.
Chemical reagents, depending on the breadth of the spectrum of influence, can be divided into:
- selective action drugs;
- continuous action drugs.
Herbicides for corn of the latter type destroy all weeds, without exception, in the treated area. This allows them to be used to completely clean the beds, which will later be replaced by a lawn. Reagents with higher concentrations are more often suitable for use in construction or industrial areas, airports and roads.
If it is not possible to get rid of harmful weeds, this type of herbicide is also chosen.
Drugs with a selective type of action are chosen to destroy harmful vegetation in areas that are intended for the growth of certain crops. At the same time, they do not harm themselves. These could be fields with cereals, tomatoes, potatoes, corn or sunflowers. Treatment is carried out before or after crop germination.Regardless of the time of spraying, carefully study the instructions for the drug.
Features of the reagents used
As many years of practice have shown, not all herbicides are suitable for treating corn. This culture has increased sensitivity to certain chemical components. Different varieties react differently to the same substance. To this end, scientists have developed lines of drugs that do not harm corn and at the same time destroy weeds.
Corn tolerates acetochlor, clopyralid, amine salt and sulfonylurea well:
- Soil preparations such as acetochlor can destroy weeds in the top layer of soil even before seedlings appear on the surface. Continues to operate for 2 months. Protects against annual and biennial weeds.
- Clopyralid acts on weeds when the slightest sprouts appear.
- Amine salt is used exclusively for moist soil. In dry weather, there is a chance that corn leaves will burn.
- Sulfonylurea is a selective substance of systemic action. The result shows when fighting weeds.
These components are used to treat corn beds. They do not harm the culture itself. The soil remains clean for 6–8 weeks. Included in preparations for processing.
Choice of drug
Herbicides that act on corn are divided into post-emergence and soil-based. The main advantage that all types have in common is weed control. Moreover, they affect both annual and perennial plants. Each individual drug has limited capabilities. Before purchasing a product, it is necessary to consult with experienced agronomists so that the effect is maximum and the harm is minimal.
Popular drugs
The market offers customers a wide range of products for processing corn. Popular ones include:
- "Dublon Gold" is one of the most highly effective herbicides. Continues to work for months.
- "Titus" is a systemic drug with a selective type of action. It works quickly, the result is noticeable already 4-5 days after treatment.
- "Aztec" is a substance for soil, of a selective type of action. Destroys weeds even before sprouts appear. Protects the culture for 2 months. The only working condition is moist soil.
- “Miranda” is a herbicide intended for “insurance.” Used to prepare land before sowing crops. Affects weeds with the appearance of 3 leaves. Has a low level of danger to humans and animals.
- "Trimmer" is a systemic drug. Release form: granules. Before use, dilute in water.
- "Quasar" destroys weeds only after seedlings emerge above the soil. Suitable for destroying all types of unwanted plants. The effect is noticeable after the first use and lasts for a long time.
In more “complicated” cases, it is recommended to use other herbicides:
- Perennial weeds respond well to herbicides such as Turbin, Corrsan, Basis and Leonium.
- Perennial plantings have a developed root system and are difficult to get rid of. Stellar will help with this.
- Preparations for the destruction of dicotyledonous weeds - “Certo Plus”, “Dikopur”, “Callisto” and “Diamax”.
- Thistle and similar weeds are completely eradicated with the help of Lontrel 300, Argon and Defender.
Each type of herbicide used on corn has a different exposure time.Some destroy herbs within 24 hours, others will take from a week to a month. Such nuances depend on the composition of the drug. This must be taken into account when choosing a herbicide.
How to use reagents?
Each drug has its own method of influencing weeds and its period. Therefore, you need to know how to use them correctly. To achieve maximum effect, adhere to the following rules:
- The reagents are used before planting the crop, immediately after sowing and during the growth period. It is prohibited to treat corn with herbicides at the time of cob formation or ripening.
- Much attention is paid to soil cultivation. Large clumps of soil contain weed roots and seeds. If this is overlooked, even after spraying, they will survive and germinate in the near future. Do not forget about periodic and high-quality loosening.
- Treatment of corn with continuous action herbicides is carried out after harvesting the land from crop residues. There should be nothing preventing the substance from penetrating into the soil.
- Adhere to the instructions for use that the manufacturer indicates on the packaging.
- At the time of processing, pay attention to the weather. Wind or precipitation negates human efforts.
Corn is a grain that has great benefits for humans. It is used in industrial areas, consumed as food and animal feed. A farmer or owner of a large farm must protect corn from weeds. This will not only clear the lands capable of bearing fruit, but will also allow large harvests to be collected, positively affecting them.
