What are the methods of using herbicides for growing vegetables?

Introduction: It is said that agriculture has been affected by weather and other conditions since ancient times, because there were no pesticides in ancient times, and no one could let crops grow under their control, but now it seems that the growth of many crops can be changed through modern technology to increase income and production. <>

1. What are the methods of using herbicides for growing vegetables? First of all, different lands and different crops have different ways of using herbicides. And in different seasons, the types of weeds you grow are different, and the types of herbicides you should use are also different.

For example, when using auxin inhibition drug method, it inhibits grass growth. In this case, we need to distinguish whether the grass we need to use is a single-occupation plant or a dicot plant. If the concentration is not high, it is likely to damage the grass that is planted, and if it cannot be removed, it should first read the instructions carefully before making a judgment.

2. What should be paid attention to in weeding? It is necessary to select qualified and compliant herbicides, otherwise it may not only cause irreparable losses to their crops, but also may cause land pollution, and may even cause water pollution, after all, land is also to be recycled, not a one-time use, so the use must be used in accordance with the instructions and regulations, and secondly, the use should ensure that the land is also in a wet state, so that the herbicide can fully play its role. <>

3. When is the best time to use herbicides? In general, it is the best effect to spray herbicides when weeds 2 3 leaves are staged, and the general spraying time should be best in the morning or afternoon and evening on a sunny day, if it is a cloudy day, it can be suitable for spraying herbicides throughout the day, but if the amount is too large, do not spray how many agents, which will cause the loss of active ingredients of herbicides, and then do not spray if there is dew when spraying in the morning.

There are these methods for growing herbicides: choosing the right type of herbicide; Use herbicides in vegetable fields, and carefully prepare the land when weeding; The pesticide should be applied within a suitable period.

First of all, we should choose some relatively high-quality herbicides, and at the same time, we should also pay attention to the problem of ingredients and proportions, we must prescribe the right medicine, and we also need to choose some herbicides that are less harmful to the environment, we must avoid rainy or windy weather, choose to use herbicides on sunny days, and we also need to pay attention to the dosage.

The first thing is to choose the right variety, and then pay attention to the appropriate concentration and dosage when using, and then don't use too much at one time, and also to do a good job of personal protection, when using herbicides, we must pay attention to the ingredients and safety.

Summary. 1. Herbicides can be used in vegetable plots, according to different vegetable varieties and the length of the growth period, it is generally better to choose herbicides with appropriate effective periods to reduce the time of residual pollution and ensure safety.

2. Alternate medication: note that a single herbicide should not be used for a long time to prevent weeds from becoming resistant and improve the weeding effect.

3. Uniform spraying: chemical herbicides with poor wettable properties are prone to precipitation. Therefore, it is necessary to shake frequently when spraying to ensure uniform spraying, otherwise the concentration of the lower liquid is too high, which is easy to cause pesticide damage.

Yes. 1. Herbicides can be used in vegetable plots, according to different vegetable varieties and the length of the growth period, it is generally better to choose herbicides with appropriate effective periods to reduce the time of residual pollution and ensure safety. 2. Alternate medications:

Note that a single herbicide should not be used for a long time to prevent weeds from becoming resistant and improve the weeding effect. 3. Uniform spraying: stool macro chemical herbicides with poor wettable properties are prone to precipitation.

Therefore, it is necessary to shake frequently when spraying to ensure uniform spraying, otherwise the concentration of the lower liquid is too high, which is easy to cause pesticide damage.

Hello, cauliflower belongs to leafy vegetables, this kind of vegetables do not advocate the use of herbicides, if necessary, you can use Dahuili, weeding Tong in the seedling after sowing * soil treatment, or with fruit (24% ethoxyfluoroxaether), oxafen, before planting * soil treatment. If herbicides must be used after planting, pendimethalin can be selected, the use method is 33% pendimethalin EC, 100 150 ml per mu, add 40 60 liters of water, and spray evenly before transplanting.

In general, it takes 3 to 5 days after spraying herbicides, but if it rains, it can be shortened to 2 days. But there is no single answer, as follows:

The first thing to see is what kind of vegetables are planted and whether they are resistant to herbicides; The second depends on the concentration of the herbicide used. The above two conditions are the main conditions that determine how long after the herbicide is used before you can grow vegetables.

Herbicide refers to a type of substance that can completely or selectively cause weeds to wither and die, also known as herbicides, to destroy or inhibit plants that humans do not want to grow. Among them, sodium chlorate, borax, arsenic, trichloroacetic acid and other agents have a dead effect on any kind of plants, and their effects are affected by three main factors: herbicide concentration, plant and environmental conditions (soil, air, climate).

According to the function, it is divided into incidal and selective herbicides, and selective herbicides, especially nitrophenol, chlorophenol, and carbamate derivatives, are effective for most plants. The contemporary era is developing rapidly, and the styles of herbicides are also emerging in an endless stream, and what kind of herbicides to use depends on the soil conditions and the type of crops to be planted.

Generally, herbicides will be applied once before emergence, and different chemical herbicides should be selected after emergence according to the different seedling conditions of crops and different crops.

1. Eat leafy vegetables.

For example, cabbage, cabbage, green leafy vegetables, such as Chinese cabbage, camellia, cauliflower, cabbage, celery, lettuce, artemisia, spinach, bracken, amaranth, coriander, etc. The use of herbicides is not recommended for this type of vegetables. If necessary, Dahuili and weeding can be used for soil treatment before seedlings after sowing (celery and lettuce should not be used for Dahuili) or Guoer, weeding, and vegetable Zhuang No. 2 can be used for soil treatment before planting.

Celery seedling field can be used for soil treatment before seedling sowing with dilodiamine, gol and dioxazim; Lettuce and vegetables can be treated with Guoer, weedin, and Vegetable Zhuang No. 2 in the soil before planting; Artemisia annua and amaranth can be treated with pre-seedling soil after weeding and sowing; Spinach plots that do not have wells around can be used for chlorpyra; Coriander dididilamine is treated with pre-seedling soil treatment, and sulfonylurea herbicides can not be used in this kind of vegetable field in the previous crop, and acetochlor cannot be used in spinach.

2. Liliaceae, root vegetables, potato vegetables.

For example, leeks, garlic, green onions, onions, lilies, garlic, carrots, kohlrabi, potatoes, ginger, yams, etc. Leeks have a short growth period, frequent harvesting, and eat leaves, try not to use herbicides, and if necessary, you can choose to kill the slightly toxic herbicide Guoer, and spray the old leeks after harvesting.

Garlic, lily, potato, ginger, yam has a long growth period, and is mainly edible bulbs and tubers, (garlic edible garlic moss) can be soil treatment in the early growth stage or stem and leaf treatment in the early post-emergence stage, you can use fruit, garlic grass ether, vegetable Zhuang No. 2, etc. Green garlic, green onions, and onions have a short growth period, and can only be used with contact soil treatment agents; Radish and carrot can be treated with herbicides with poor conductivity, such as weeding.

3. Nightshade vegetables.

For example, eggplant, tomato, pepper and other vegetables should not use stem and leaf treatment agents, and before transplanting, you can choose to use contact soil treatment agents such as Ruoer, oxazil or vegetable Zhuang No. 2 and dilometin with a slight systemic conduction effect.

For example, cucumber, pumpkin, winter melon, loofah, vegetable melon, bitter gourd, bergamot, horn gourd, etc. It is strictly forbidden to use acetochlor in this kind of vegetables, and it is advisable to use herbicide, Guoer, and dioxapyrin for soil treatment after sowing.

5. Legumes and vegetables.

For example, kidney beans, cowpeas, raw edamame, peas, broad beans, lentils, etc. There are many herbicides suitable for vegetable applications, but soil treatment herbicides are still the first choice, such as dilodiamine, vegetable Zhuang No. 1, dioxazim and other post-sowing pre-seedling soil treatments.

6. Aquatic vegetables.

For example, lotus root, cocoon white, mushrooms, etc. Try not to use herbicides for aquatic vegetables, and if necessary, you can choose low-toxicity Lianzhuang No. 1, grass buster, etc.

7. Special vegetables.

For example, asparagus, burdock, lettuce, artichokes, ginger, camellia, maran, chrysanthemum brain, etc. Fruit can be used for soil treatment after sowing and before budding or before transplanting.