When planting rice in rural areas, how many days after sowing is a closed medicine? Is there a speci

Southern rice mostly uses water direct seeding, before sowing rice needs to soak seeds to promote teeth, 2-4 days after sowing to play sealing drugs, weeds are not excavated, seedlings before needles, the use of prochlor (including safety agent) and benzyl prochlor and other drugs closed type. Do not promote rice seeds, do not blind grain sowing and sealing, is not conducive to the transformation of medicine and harm the germination. After the medicine, keep the field damp, there should be no water storage, and if it rains, the drainage pipe should be used to prevent the seedlings from being swallowed up and endangering the buds.

For sowing rice and playing sealing medicine, the field sand pulp does not need to be too lively, but it must be very level, and there should be no unevenness"Moon-Taip"。Drain the water when spraying, and maintain the semi-ditch water in the compartment ditch on sunny days after the sealant is sprayed, and the compartment surface is damp. On rainy days, open the drainage pipes to avoid flooding.

Together on a rainy day, windy '12 degrees in temperature are not suitable for application. Occlusive drugs are cautious about the toxicological and environmental contamination of the body and similar to other chemical fertilizers. It is very likely to be successful, otherwise it is very inconsiderate.

Drought direct broadcast does not have to soak seeds and promote teeth, only the ground must be leveled, sowing rice seeds, the general basic rice seed amount of 10 catties, hybrid rice about 4 catties, depending on the land resources leveling status of the amount of addition and subtraction as appropriate. Sealing herbicides can be sprayed immediately after sowing. Because of the lack of water, the grass phase is very complicated, the weeds and broad-leaved plants of the sedge family are dilapidated, and the key to the sedge family is barnyard grass and barnyard grass is the most difficult to get, so it is immediately closed to solve, otherwise the cost of hoeing in the middle and late stages is very large, and sometimes it cannot be removed.

The difference between the visualization of water live broadcast and drought live broadcast room is that there is a lot of water in water live broadcast, and the water live broadcast must be used for tooth stimulation before broadcasting. First wet field, the field leveling, the field can be used to use butachlor benzylsulfuron into the East China Sea forest, pay attention to the use of butachlor with safety agents, to prevent fertilizer damage. At the same time as the whole field, it can be soaked to promote teeth, rice soaking is generally 12 hours to promote teeth, and it is necessary to pay attention to the ambient temperature can not be too high when urging teeth, generally 32 numbers are appropriateIf the rice leaks white, it needs to be cooled and pay attention to maintaining the ambient humidity.

Water can not be added in the field, and it can also be moderately fertilized to raise seedlings.

Generally, three days is enough, because the change is also very fast, but you need to choose the dosage and duration according to the land environment. Rational planting according to local conditions.

About three days after dispersing, you can apply the blocking medicine, and if you feel that the rice is a bit emerging, you can actually start spraying.

Planting rice is generally 2 to 4 days after sowing to take the sealing medicine, remember to keep the field moist after the medicine, there can be no water, and there is a waterproof pipeline to prevent no seedlings on rainy days.

Summary. Has the rice emerged? Rice field sealing drugs are generally used after sowing and before emergence, or early after emergence.

The use of blocking drugs can reduce the number of weeds, if the number of weeds is large, some of the weeds will be covered on the bottom and will not be able to get on the medicine at all. Blocking medicine can also slow down the age of weeds, generally done before the bud closed field, 14 days of weed leaf age is about 2 leaves, no pre-bud closed field, weed leaf age is about 3 leaves.

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Hello, dear, it is not recommended to take a closed shot after sowing.

Has the rice emerged? Rice field sealing drugs are generally used after sowing and before emergence, or let hail be used early after emergence. The use of blocking drugs can reduce the number of weeds, if the number of weeds is large, some of the weeds will be covered on the bottom and will not be able to get on the medicine at all.

Sealing medicine can also be used to slow down the age of weeds, generally do the field closed before the bud return to dust, the 14-day weed leaf age is about 2 leaves, and the field is not closed before the bud, the weed leaf age is about 3 leaves.

Rice direct seeding fields can be closed for seven days.

Rice field closure herbicide usage.

1. Dry direct seeding fields.

When the dry direct seeding field is carried out in the simple mu of closed weeding, it must be compounded to use it with good effect or increase the dosage of pendimethalin by 20% per mu: pendimethalin + butachlor, sec butylene + butachlor. For broad-leaved weeds, pyrisulfuron can be added to the closure, but it should be noted that the seeds must be covered before compound application, and there can be no heavy rain and water accumulation after application.

2. Water live broadcast field.

It is suggested that growers can choose a drug containing protochlor + safety agent, or prochlor + benzsulfuron-methyl with good safety for routine closure at the time of the first closure.

3. Transplant the field.

After 5-7 days after transplanting, after the rice is completely viable, it is generally necessary to choose some conventional agents containing phenthiamidide and prochlor or effervescent granules to sprinkle. If weed resistance is greater, a drug containing butachlor + profenone can be selected.

Closure of rice fields on the use of herbicides.

1. Land preparation work should be done well.

The higher the flatness, the finer the soil, and the better the weeding effect. The whole field is uneven, the field is easy to accumulate water, and the water is mixed with herbicides, which is not conducive to rice rooting and needles, and affects the sealing effect.

2. Choose herbicides correctly.

For example, the harm of rice barnyard can be selected as saxial phosphorus + phenylpyridine; For the harm of shallots, benzopyrime + rice can be used; Broad-leaved Ze Epsom Cigu rain long-term flower hazards, the use of prochlor + pypoxima, etc.

3. Pay attention to the depth of the water layer when using medicine.

Keep the water layer at 3-5 cm when using the medicine, and must not submerge the water tung to attack the rice heart leaves, otherwise it will cause pesticide damage when encountering high temperatures. As the temperature rises, the evaporation of water in paddy fields accelerates, so it is necessary to watch the water layer and replenish water in time to avoid the diffusion of medicinal properties and cause pesticide damage. In addition, it is also necessary to avoid low temperatures and rainy days.

4. Do a good job of stem and leaf treatment in the later stage.

Blocking herbicides cannot be used for one-time complete weeding, but only to minimize the number of weeds and leaf age, and stem and leaf treatment are still needed in the later stage.

Summary. Hello dear, after the application of pesticides in the paddy field, it is generally possible to sow seedlings after an interval of 15 days. Occlusive drugs generally destroy the top protein of the plant and kill the tip of the plant bud when it is unearthed.

There is no effect on planted seedlings. At least two days so that the previous pest can be killed. It is best to close for more than three days before transplanting, and the effect is obvious.

Paddy fields generally adopt pre-emergence closure and post-emergence weeding. After sprinkling the sealing medicine, the damage will be smaller after 24 hours, and you can plant seedlings.

Hello dear, after the application of pesticides in the beginning period of rice fields, the seedlings can only be sown after the interval of 15 days. Occlusive drugs generally destroy the top protein of the plant and kill the tip of the plant bud when it is unearthed. The impact on the planted seedlings is not clear.

At least two days so that the previous pest can be killed. It is best to close for more than three days before transplanting, and the effect is obvious. Paddy fields generally adopt pre-emergence closure and post-emergence weeding.

After sprinkling the sealing medicine, the damage will be smaller after 24 hours, and you can plant seedlings.

How long does it take for soybeans to go after taking blocking pills.

The specific closure time depends on the actual situation, and it is generally recommended to take about 3-5 days, so that the soil can be better protected and water retained.

Sealing herbicides are generally sealed for about 8 hours. It will be affected by the pesticide variety, weather, and drug method. Occlusive herbicides are best sprayed at around 10-24 degrees Celsius, not at noon when the temperature is very high, otherwise poisoning is likely to occur.

The duration of action of blocking herbicides is generally related to the type of drug, the amount of active ingredient before locusia, the quality of the original drug, water consumption, soil moisture and other factors. For example, isopropyl lead can generally be sealed for about one month after use, and if the soil moisture is good, it can generally be sealed for about two months.

Summary. Hello, dear, I am happy to serve you, I have inquired for you here, under normal circumstances, the closure of rice after 10 days of sowing has no effect on the seedlings. Because in the first few days after sowing, rice seeds mainly absorb water and nutrients from the soil and have not yet entered the germination stage.

At this time, the closure treatment will not damage the germination and growth of the rice. However, if the growing point of the rice seedlings is destroyed during the closure process, or if the shading material used blocks the light, it may adversely affect the normal growth of the rice.

Hello, dear, I am very happy to serve you, I have inquired for you here, under normal circumstances, the closure of rice after 10 days of sowing has no impact on the seedlings. Because in the first few days after sowing, rice seeds mainly absorb water and nutrients from the soil and have not yet entered the germination stage. At this time, the closed treatment will not damage the germination and growth of rice.

However, if the growing point of the rice seedlings is destroyed during the closure process, or if the shading material used blocks the light, it may adversely affect the normal growth of the rice.

I took a look.

The rice seeds in the soil have germinated and have not yet been unearthed.

Can you hit the closure.

If the rice has germinated but has not yet been unearthed, then sealing at this time may have some effect on it. Because at this time, the rice seedlings have begun to stretch to the ground, and the closed treatment may inhibit the normal growth of the rice, and at the same time inhibit the respiration of the seedlings for calming, resulting in death. Generally speaking, it is more appropriate to carry out the sealing treatment about 5-7 days after the germination of rice seeds, so as to avoid disturbing the growth of rice seeds.

However, the specific situation should also be considered according to the local climate, soil conditions and rice varieties and other factors, and it is best to consult the local agricultural silver roller technician or expert advice.

Summary. Dear, it generally takes about 4 days to get water on the rice after the sealing medicine is injected.

Dear, it generally takes about 4 days to get water on the rice after the sealing medicine is injected.

Precautions: It is not advisable to use drugs containing butachlor when the first machine transplanted rice is a good staring field, otherwise it will prolong the regreening time of rice seedlings, and the blocking drugs should be used according to the specific situation; For example, acetochlor should not be used in colder areas in the north, and butachlor and ethoxyflufen should not be used in uneven areas of sock beams.

Pro, hello, a few days after the rice is closed, irrigation in advance is not good for the rice to answer the seedlings, the combination of the drug and the soil needs Sun Lu two or three days, do not irrigate in the short term after the application, so as not to affect the weeding effect and the appearance of pesticide damage. Tips: After sowing rice, sufficient water should be used first, and then soil sealing treatment agents such as pendimethalin should be applied.

In the case of sufficient water after rice sowing, there is no need for re-irrigation before the formation of the medicinal soil layer. If my answer is helpful to you, if you feel that my answer is still satisfactory, you can click on my avatar for one-on-one consultation. Finally, I wish you good health and a happy heart!

Hello dear, I'm glad to answer your <>

<> direct seeding rice can be irrigated 7 to 10 days after the occlusive medicine. It is necessary to wait 7-10 days for irrigation when the rice is beaten or laughed. This is because after the occlusive drug is applied, it takes a certain amount of time for the drug to work and prevent the growth of weeds.

During this period, the paddy fields should be kept dry to ensure the effect of the sealing drug. After waiting for a period of time, irrigation can be carried out to meet the growth needs of the rice.