What are the common methods used to get rid of weeds?

What to do if it is overgrown? Teach you how to get rid of weeds, 3 cents homemade herbicide is really easy to use.

(1) Manual copy weeding. This includes hand-pulling weeds and using simple single farm tools for weeding. (2) Mechanical weeding.

Zhi uses animal power or mechanical power to pull DAO's weeding implements. (3) Physical weeding. Use physical factors such as water, light, and heat to control weeds.

For example, the fire method is used to reclaim land and weed. (4) Chemical weeding. That is, the method of removing weeds with chemical herbicides without harming crops.

For annual weeds germinated by seeds, soil treatment agents with long effective period are generally used to control them, and selective herbicides with strong conduction are used for perennial weeds germinated by rhizomes. (5) Biological weeding. Use insects, livestock, pathogenic microorganisms and competitive replacement plants and their metabolites to control weeds.

For example, fish and ducks are raised in rice fields to control weeds. (6) Ecological weeding. Use agricultural or other measures to create an ecological environment over a large area that is conducive to the growth of crops and not conducive to the reproduction of weeds.

If the water-drought rotation system is implemented, it has a good control effect on many weeds that are not resistant to flooding or drought.

1. Carry out manual weeding

For malignant weeds, in the case of a small lawn area, it is generally turned over the ground for transformation, or manual weeding, mainly manual weeding, or simple weeding tools are used, but the effect is not good and very laborious.

2. Carry out physical weeding

Physical factors such as light, water, and heat can be used for weeding, such as lawn weeding by fire method, xerophytic weeds by flooding, and covering the soil surface with dark plastic film to shade the light, so as to increase the temperature and play the role of weeding.

3. Sow seeds in a timely and appropriate amount to inhibit weeds

Under the same temperature conditions, weeds are not as neat as turfgrass germination, so when the temperature is suitable for lawn germination, as long as the humidity is suitable, it is necessary to sow seeds in a timely manner, so that turfgrass grows neatly and germinates. During this period, the growth law of turfgrass can be grasped in time, and its growth conditions can be fully guaranteed in the peak growing season, so that it can grow luxuriantly and occupy the living space to achieve the purpose of curbing weeds.

4. Use herbicides

Now the turfgrass is mainly tall fescue, dogtooth root, barnyard grass, knotweed and other grasses, in the case of a large lawn area, taking manual weeding will be time-consuming, laborious, and incomplete removal, chemical herbicides can be used to weed during the period, and the main control species need to be paid attention to when using medicine, different weeds should use different herbicides.

Fluorin: It is an aniline herbicide, which can be used to control grasses for more than a year, as well as some broad-leaved grasses that are propagated by small seeds, and the agent is absorbed in the process of germinating through weed seeds and then growing through the soil layer, so it has no effect on the weeds that have emerged.

Control species: If the weeds are Ma Tang, Kanmai Niang, barnyard grass, dogtail grass, quinoa, amaranth and other species, the weeds can be applied before the seedlings, generally per 1000 square meters of dosage of about 1500-3000ml, sprayed with 600-900kg of water, because fluorine is easy to volatilize and photolysis, so in order to ensure its effect, after the application of the shallow loose soil, covered with soil and sand, and then the soil layer can maintain a certain degree of moisture.

1. Weed speciesThere are many kinds of weeds in the lawn, including 11 species of Asteraceae weeds, 8 kinds of grasses, the main weeds are cow tendon grass, dogtooth root, purple horsetail, dogtail grass, white grass, vetiver grass, paving millet, bamboo grass, Apiaceae, coriander, Bang big bowl, sedge, water centipede, fragrant aconite and so on.

2. Strengthen quarantineThe lawn should pay attention to the prevention and control of weed breeding before planting, clean and disinfect the soil in advance, and pay attention to removing the weeds inside when the lawn is laid. Strengthen the quarantine of quarantine weeds, do a good job of specific work, and make great efforts to prevent them, and the later maintenance process will be relatively easy.

3. Prevention and control methodsTo control lawn weeds, we can achieve the desired effect through artificial, mechanical, and drug. The size and function of the lawn are different, and the methods of weed control are also different, generally small lawns can be weeded manually, like the courtyard lawn, this area is relatively small, and we found that there are weeds that can be pulled out by hand. Large areas of lawn can be mowing weeds at the same time, in addition to the use of herbicides, a small amount of many times, or targeted use, the effect is better.

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Warm-season lawn weeding: such as knotweed, Taiwan grass, Lanyin No. 3, Manila, Paradise grass, Bermuda, dogtooth root, tripping root grass, green grass and Paradise grass and other warm-season lawn weeding, according to the occurrence of weeds, Ma Tangqing, Yuanxiao, Nuan Baiqing and Ma Tangqing enhanced weeding are usually used.

Clover lawn: We can use a clover special herbicide for weeding.

Wheat winter lawn: If there are only grass weeds in the lawn, you can use Helijing, if it also contains grass weeds, you should use an all-round herbicide to remove it along the street.

The complete removal of weeds is as follows:1. Use a shovel, using a shovel to remove weeds is the easiest way, we use a gardening shovel to shovel the weeds little by little, although this method can shovel the weeds relatively clean, but it is more energy-consuming and time-consuming.

2. Remove the flowers and seeds, if you want to make the weeds at home less and less, you can pull out all the flowers of the weeds during the flowering period and the seed-bearing period, because once the weeds bloom, they will begin to multiply and spread. In addition, some flower friends like to use weeds for composting, which will also lead to the spread of weeds.

3. Spread plastic film, when we raise flowers in the yard, if it is the season when the plant grows more vigorously, we can spread a little plastic film on the ground, which can prevent the growth of weeds, and also has the effect of heat preservation and moisturizing.

However, it is important to pay attention to the concentration when using this method, if the concentration is too high, it may harm other plants. Now there are special herbicides on the market, and they are also very cheap, so if you don't have a good grasp of the dosage, you can directly use the finished herbicide.

You can use manual weeding, or use pesticides, or mechanical weeding, or use chemical methods to control weeds, or you can combine photosynthesis weeding, these methods are all good.

First of all, we can use manual weeding, we can also use chemical methods to weed, we can buy some herbicides, and we can also use some vinegar to weed, all of which can achieve the corresponding purpose. However, manual weeding is only suitable for some small grasslands, and if the area is particularly large, chemical methods must be used to weed.

At this time, you can choose some herbicides, and you can also use weeding manually, and then you can also choose the right sowing distance, and then you also need to pay attention to the appropriate sowing time.

Mulch film for weeding, this mulch film allows it to cover the ground and grow only crops and no weeds. Weeds can be pulled out with tools such as hoes, herbicides and so on.

1. Manual weeding: In the case of a small lawn area, manual weeding can be used. In the early stage of turfgrass growth, that is, before dividing or branching, manual weeding can be carried out because of the small size of weed seedlings.

2. Chemical control: In the case of a large lawn area, manual weeding is labor-intensive, time-consuming, and incomplete removal, so chemical herbicides should be used for weeding.

3. Timely sowing: sowing lawn seeds in advance or postponement, avoiding the germination period of weeds that grow under natural conditions, so as to reduce the harm of weeds.

4. Timely and moderate pruning: general weeds grow under natural conditions and have strong competitiveness in the early stage. However, in the event of human intervention, especially high-intensity mowing of turfgrass, its growth will be significantly inhibited, and after a certain period of time, the weeds will gradually decrease and even disappear from the lawn.

5. Irrigation: Before sowing lawn seeds, irrigate the soil in advance. First, the weed seeds in the soil germinate in advance, which is conducive to manual or chemical control; The second is to make the land settle, which is conducive to the further leveling of the land.

In addition: biocidal herbicides (non-selective herbicides) kill all green plants and are used in the initial soil treatment (or when changing to other species of lawn).

1. Remove by hand.

The easiest way to remove weeds is to use a hoe or pull it out by hand, weeds grow in the yard in particular, first of all, you can use a hoe to shovel them up, in dry weather, you can directly put the weeds on the soil surface to dry, the defect of this method is that the removal is not complete, there are many weed roots are still in the soil, they will re-emerge, and it is easy to drop weed seeds.

2. Use bark or leaves to cover.

Spreading a layer of mulch on the soil surface can inhibit the growth of weeds and can retain moisture in the soil, which is conducive to the cooling of the roots, which is very beneficial for the growth of plants.

When planting plants in the garden, if you want to prevent weeds from growing and want to keep the soil hydrated, you can spread some bark and fallen leaves or straw stalks on the soil surface. I prefer to cover the soil with some pine needles, which are very easy to obtain and do not increase the alkalinity of the soil.

In winter, cover the soil with some mulch to prevent the rhizome from frostbite, and in the north, it prefers to cover the soil with film to increase temperature and humidity, and also to prevent weeds from growing.

3. Remove with cleaning substances.

Bleach, vinegar and baking soda, which are commonly used at home, can remove weeds, and they can be sprinkled directly on the places where weeds grow, which is particularly effective in killing weed seedlings, but they are generally used to remove weeds in rock crevices, and Wang quietly will use these methods.

You should also pay attention to the concentration used, for example, use 1:1 for vinegar and water, and 1:10 for bleaching powder and water.

If you use baking soda, you can also use baking soda to mix with 1:10 water seepage, so that you can remove weeds, generally in dry and sunny weather, and avoid choosing rainy weather.

4. Use herbicides

The easiest way to remove weeds is to use herbicides, the most common pesticide is glyphosate, it is a broad-spectrum herbicide, it is very effective for some annual and perennial weeds, the principle of weed removal is to let the leaves of the weeds absorb the solution, through the leaves of the plant to the roots within 1 2 weeks, so as to hang the weeds. The toxicity of this herbicide is relatively low, and the concentration of the general preparation is.

Be careful when using herbicides, and clean your hands after weeding in a ventilated environment.

<> to completely remove weeds, it is necessary to control the seeds, roots, stems, etc. of weeds in the field. You can dig deep into the land and remove the rhizomes of weeds, and you must cut the weeds and remove the roots, not just the leaves of the surface weeds. Weeding should be done frequently to prevent weeds and crops from stealing nutrients.

Herbicides can also be used to spray the soil with herbicides to prevent weeds from growing before planting crops.

The growth of weeds is not conducive to the growth of grain, and weeds in farmland compete with crops for fertilizer, light, water and space. Farmland weeds can also reduce the yield and quality of crops, such as the toxic effect of flour from poisonous weeds mixed with wheat.

Farmland weeds can also breed diseases and pests, so be cautious of infiltrating some weeds and infecting them with viruses through insects, and then insects will spread the viruses on the weeds to crops. Weeds are the most harmful at the seedling stage, if the crops grow taller after manual or chemical weeding at the seedling stage, and the weeds grow out again, they are shaded by the crops, and they will not grow.