What herbicide is used for weeds in rice paddies?

Just ask the store that sells pesticides, they have herbicides that are specially used to deal with weeds in rice fields, and they do not harm the rice seedlings.

Wild rice can be removed with a herbicide.

Highly effective flupyromegran (untitled).

This product is a selective herbicide. It has excellent control effect on perennial stubborn grasses such as reed, white grass and dogtooth root. There was no adverse reaction to broad-leaved crops. The effect is stable at low temperatures.

Applicable crops. A variety of broadleaf crops. Such as: cotton, soybeans, peanuts, potatoes, rape, sunflowers, watermelons, hemp, vegetables, etc.

Prevent objects. Annual and perennial grasses weeds. Such as:

Ma Tang, barnyard grass, Qianjinzi, Kanmai Niang, dogtail grass, cow tendon grass, early maturing grass, wild oats, reeds, white grass, dogtooth root, etc. In particular, it has excellent control effect on perennial stubborn gramineous weeds such as reed, white grass and dogtooth root.

Mechanism of action. After application, this product can be quickly absorbed by the leaves of gramineous weeds and transmitted to the whole plant, inhibiting the growth of plant meristems, thereby killing weeds. It has a long effective period, and has a good control effect on annual and perennial grasses from seedling emergence to tillering and early heading.

It is highly safe for a wide range of broadleaf crops under normal use. It can still show excellent weeding effect under low temperature and drought conditions.

How to use: (1) To control annual grass weeds, apply pesticides at the 3 to 5 leaf stage of weeds, use 20 to 30 ml of this product per mu, mix 20 to 25 kg of water, and evenly spray weed stems and leaves. When the weather is dry or the weeds are large, the dosage should be increased to 30 to 40 ml, and the amount of water should be increased to 25 to 30 kg.

2) When used to control perennial grasses such as reeds, white grass, and dogtooth roots, the dosage per mu is 60 to 80 ml of high-efficiency flupyridoxalin emulsifiable concentrate, mixed with 25 to 30 kg of water. One more application one month after the first medication can achieve the desired prevention and control effect.

Precautions. (1) The addition of silicone additives to this product can significantly improve the efficacy.

2) Poaceous crops have adverse reactions to this product, and the liquid should be avoided from drifting to corn, wheat, water and other gramineous crops when applying pesticides to prevent pesticide damage.

Wild rice can be removed with herbicides.

Summary. Hello, wild rice can be removed with Grassedan herbicide.

Hello, wild rice can be removed with Grassedan herbicide.

Prochlor herbicides with added safety agents can also be used.

There is also bicyclosulfonone. As far as is known, there is no herbicide that works on wild rice without damaging domestic rice, and the best way is to pull it out manually.

Removal of wild rice in the paddy field: 1. Pre-bud closure is the most economical and effective means to control wild rice in the paddy field, transplanting rice after paddy field ploughing, this period due to the germination of rice seeds and wild rice seeds in the same time cracking period, herbicides can be used in this period, herbicides must have a high degree of selectivity and safety to rice, and should choose Hekuo double removal and sealing herbicides. 2. Stem and leaf treatment is a supplementary means to prevent wild rice, and it is strictly forbidden to use barnyard removal agents after rice enters the panicle differentiation, otherwise it will cause problems such as source combustion empty straw rate and deformed grains, resulting in serious yield reduction or loss of harvest.

It is the middle strategy to control wild rice, and it should be scientifically applied, early prevention and early treatment, so as to avoid grass shortage in rice fields when drugs are used. 3. Strengthening fertilizer and water management is a necessary means to prevent and eliminate wild rice, and when preparing the rice field, it is necessary to apply sufficient basal fertilizer, combined with weeding and early application of tillering fertilizer, so as to promote the early growth and rapid development of grass seedlings, and press grass with seedlings. In the rice tillering stage, the water layer should be maintained for a long time after the use of dichloroquinolic acid to remove wild rice, and the rice root system is in a state of hypoxia for a long time, the growth is poor, and the vitality of the root system is reduced, which will lead to the appearance of poisoning symptoms.

Summary. Wild rice can be removed with herbicides.

Wild rice can be removed with herbicides.

However, herbicides are difficult to effectively remove wild rice, and they have to be removed manually.

What herbicides.

In the rice growth period, there is no safe and effective selective stem and leaf treatment herbicide that can eliminate weed rice, barley indica rice, etc. Generally, it can only be removed manually. It is possible to use rice varieties resistant to certain herbicides, such as Jinjing 818 and Jindao 372, to get rid of weeds and rice by using specific herbicides that match them.

Last year, someone used DuPont Ote to control weeds and rice, and the effect was okay, but the cultivated rice would turn yellow, so I didn't dare to use medicine. Therefore, the effect of using this medicine to control weeds and rice is not good, and the risk of using this medicine is still relatively large, so the dosage of medicine should be controlled.

There is also the fact that it is unsafe to apply grass pill before the rice 2 leaves and 1 heart stage. After the machine transplanted rice live tree, or the first leaf, 1 heart to 2 leaves of the sprout grain water direct seeding rice, the application of grassedan has a certain control effect on the late germination of weed rice. The Japanese high-herbicidal Dan and Cao Dan products are safe for rice, and it is also safer to apply them in rice fields with water in the aquifer layer, so it seems that there should be no control effect on weed rice.

Prochlor products with safety agents can be used immediately after the direct seeding of rice white seeds or bud valley water, and its inhibition effect on blind grain can inhibit the growth of weed rice with slightly late germination to a certain extent, but it is difficult to meet the corresponding conditions in large-scale production, and the inhibition effect and control effect are limited.

Hope mine is useful to you, thanks!

Dajiangte is a 5-mesotrione prochlor GR developed by Syngenta, which is used as a blocking agent after transplanting and returning to green, and can control most of the barnyard grass, shallots, cigu, zexiao, etc. The effect is more obvious. Chlorpyrisulfuron, generally rice 2 leaves can be used, the effect of sedge is better, the effect is slower, a week before the symptoms of poisoning, generally half a month before the grass dies.

The effect is more thorough. Before transplanting: Honda's herbicides with good safety include grass nemesis, grass pills, sun stars, etc.

Keep in mind that different types of weeds require different weeds and different methods.

<> after rice transplanting, it can be taken after the rice application of the second closure, timely drainage and proper drying of the field, spraying Bendapine, herbicidal pine, herbicide, dimethyltetrachloride and other stem and leaf treatment agents. The seedlings (weeds) are closed in front of them, and the seedlings are planted for 5 7 days after each mu is used. 20 40 grams of benzyl powder, or benzyl.

20 40 grams of dichloride powder, combined with the application of rejuvenating fertilizer, mixed with 10 kg of urea, keeping the water layer 3 5 cm for about a week; There are three ways to use herbicides in rice fields: mixed fertilizer, mixed soil, or spray, depending on your own wishes, the growth of seedlings, and the number of weeds in the paddy field.

Daoyou is a new product of Dow Agro, the main ingredient is 40 pentafluorosulfonium butachlor suspension emulsion. Unlike other blocking agents, most weeds can be blocked by using Inyu. I used this product this year and it works well.

Buchlor is also known as Marchette and herbicide, which is a special herbicide for rice fields with high selectivity, mainly used for direct seeding or transplanting of annual grass weeds and some broad-leaved weeds, such as barnyard grass, goldenrod, special-shaped sedge, cow felt, etc. For barnyard grass and water bamboo leaves, double grass ether has a good control effect on barnyard grass and water bamboo leaves, especially in some fields where barnyard grass is resistant to rice jie, it is recommended to use double grass ether. In addition, on japonica rice and glutinous rice, dioxalin is not as safe as Daojie, and it is recommended to use Daojie.

Metronidazole with sodium chlorate works best and has no effect on rice yields, which is what my family has always used.

You can choose to use products with good reputations, such as Qianjin herbicides, which can quickly decompose in soil and rice fields without harming the soil or crops. At the same time, it can carry out effective environmental management of rice fields and prevent more harmful substances from entering.

Herbicides in rice fields can be used as grass busters, mercury, Han Lexing, dosage form: 10% wettable powder belongs to sulfonylurea herbicides, which are selective systemic conductive herbicides, which are mainly absorbed through the root system, rapidly transferred in the weed plants, inhibiting growth, and gradually dying of weeds.

Indica rice direct seeding can not be used to remove miscellaneous rice. Herbicides that can remove miscellaneous rice can also remove indica rice.

The crop is cultivated by technology.

The crop likes high temperature, humidity and short daylight, and has low requirements for soil.

The south of China is the main producing area, and the northern provinces are cultivated.

1. Seed treatment.

Seed treatment is a prerequisite in planting technology, generally before planting, the selected seeds are cleaned and disinfected in potassium permanganate solution, and then placed in a mesh bag for germination treatment, and the temperature can be maintained at about 30 to germinate quickly.

2. Land preparation treatment.

In order to ensure the fertility of the cultivation medium, it is generally necessary to combine the cultivation and weeding treatment when preparing the land, and then add an appropriate amount of organic fertilizer and superphosphate, potassium sulfate and other fertilizers to the soil, mix and stir evenly, and then add a small amount of dixone for sterilization.

3. Transplanting treatment.

The germinated seedlings are transplanted into the soil, do not cultivate too densely, keep the plant row spacing at about 10 cm, hold the seedling roots by hand, insert the root system into the soil, it is best not to be too shallow, the root system should be kept completely covered by the soil, and it can also be carried out with a seedling machine, which is faster.

4. Post-planting treatment.

If there is a lack of seedlings after planting, it is necessary to replenish the seedlings in time to ensure the original planting density, and frequent irrigation treatment is required during the growth period, and the water can be increased during the seedling period, generally only need to be submerged to one-third of the plant, and then the ammonium sulfate fertilizer can be added appropriately according to the growth situation.

5. Weeding treatment.

It is best to carry out weeding treatment frequently after planting, and herbicides can be applied to it one week after planting, mainly oxatrione, and when the growth is better, benzylthioyl herbicides can be added to the fertilizer to mix and spray to avoid weeds affecting the normal growth of plants.

At present, the main resistant weeds in China's rice crop fields are barnyard grass, Qianjinzi, weedy rice, wild cigu, duck tongue grass, hollow lotus seed grass (water peanut) and so on.

The main varieties of herbicides used in paddy fields are dichloroquinolic acid, cyanofluoxate, pentaflusulfam, oxazolachlor, butachlor, prochlor, benzsulfuron, pyrisulfuron, bendasone, 2-methyl-4 chloro and their compound preparations.

Pyrisulfuron belongs to the sulfonylurea herbicide, which is a selective systemic conductive herbicide, which is mainly absorbed through the root system, and rapidly transferred in the weed plant, inhibiting growth, and gradually dying of weeds. Rice can decompose the agent and has little effect on rice growth. The efficacy is stable, the safety is high, and the duration of the effect is 25 to 35 days.

Pyrisulfuron has good safety for rice, but late rice varieties (japonica, glutinous rice) are relatively sensitive, and should be avoided as much as possible at the germination stage of late rice, otherwise it is easy to produce pesticide damage.