What herbicide to apply after rape transplanting?

Herbicides commonly used in rape fields.

Yes: Pre-broadcast: Fluorin. Post-seeding and pre-seedling: dichlor or dol. After the seedlings: Jingquinohelin.

Cover grass can or dilute oxadone, etc., which can control grass weeds. Each herbicide is used together with herbicide safety additives to solve the damage caused by herbicides to oilseed rape or soil. Of course, the herbicide that cannot be used on rape is the herbicide that kills broadleaf weeds, and cannot be used in the treatment of rape stems and leaves.

Acetochlor can be used.

Soil closure of weeds. Acetochlor is a selective bud soil treatment herbicide, sprayed on the soil, forming a layer of toxic soil on the soil surface, when the weed bud sheath grows to contact the toxic soil layer, it absorbs acetochlor to inhibit the growth of weed shoots and young roots, resulting in weed death. When transplanting seedlings in spring, there will generally be some new shoots on the seedlings, so after transplanting the seedlings, the nozzle should be lowered to take the method of directional spraying, and it is best to spray the seedlings with acetochlor after spraying a safety additive to prevent the herbicide from drifting to the seedlings and causing pesticide damage.

Rapeseed diseases include downy mildew, rape rust, rape sclerotinia and rape powdery mildew. Prevention and control methods: rape downy mildew can choose to plant disease-resistant varieties, implement crop rotation planting, and use 75% chlorothalonil in the rape sprouting stage.

500 times of wettable powder for spraying; Rapeseed white rust is deeply ploughed after the crop harvest to remove the disease residues in the field, and can be sprayed with 1000 times of 80% carbendazim wettable powder for control.

1. Disease symptoms (1) Rapeseed downy mildew: The disease mainly harms leaves, stems and horns, which will cause the plant to turn yellow and grow white mold, and there will be light green spots in the early stage of the disease, and then expand into polygonal yellow patches, and white mold will grow on the back of the leaves. (2) Rape white rust:

The disease should pay attention to the leaves, stems, and horns of rapeseed, light green dots can be seen on the leaf surface, and then gradually turn yellow into round lesions, and white lacquer-like blisters will grow at the lesions on the back of the leaves, and white lacquer-like blisters will grow, and the shape is long or short strips. (3) Sclerotinia sclerotiorum in rapeseed: the disease can occur in the whole growth period of rapeseed, and the occurrence is more serious in the fruiting period, stems, leaves, flowers, and horns can be damaged, and the stem damage is more serious.

4) Rapeseed powdery mildew: This disease mainly harms rape leaves, stems, and horns, and a small amount of dotted filaments expand outward in the early stage of the disease, and then connect into a piece, and the leaves are positive.

There are powdery mildew spots on the reverse side, and when the disease is relatively mild, the growth and flowering of rape plants are hindered.

Well, some herbicides can be used after rape transplanting, including basements, which are herbicides, and the effects are obvious, well, especially when rape grows up, it is also very tasty.

Post-seedling weeding can be done with quinoxalin, and weeding is good.

After transplanting oilseed rape, you can participate in local pest and disease intelligence.

It is best not to use herbicides after transplanting rape.

Use cletholate and herb to remove the spirit, and the grass is clear.

Personally, I think it is better to remove it manually.

Chemical removal was carried out at the 6-leaf stage of rapeseed, and herbicide and dichloropyridic acid were sprayed.

Abstract Hello, generally speaking, about 15 days of herbicides in the field can be planted rapeseed, 15 days is because of some herbicides, its medicinal ingredients are relatively strong, if you plant within seven days, it is easy to cause the plant to tolerate not good, resulting in no germination.

Herbicide in the field can be planted in a few days.

Hello, generally speaking, about 15 days of herbicides in the field can be planted rapeseed, 15 days is because of some herbicides, its medicinal ingredients are relatively strong, if you plant within seven days, it is easy to cause the plant to tolerate not good, resulting in no germination.

If there is rain during the period, it can be shortened to 12 or 10 days. There are also herbicides, and you can start planting in about seven days after the grass is finished.

The planting time should be chosen according to the type of herbicide. On the back of the bottle there is his instruction manual, which you can refer to.

I hope mine can be of reference value to you

Weeding in rape fields, before transplanting or before weeds are unearthed after transplanting, closed with 50% acetochlor emulsifiable concentrate; In the fields dominated by gramineous weeds after transplanting, at the 3-4 leaf stage of weeds, 5% quinoxalin (Essence grass gram) EC, or 30% double grass net EC, or high-efficiency flupyrimethoxalin. In the field dominated by broad-leaved weeds, 50% grass control (Gaotek) suspension agent was used at the 2-3 leaf stage of weeds.

1. Clean the ditch and drain it.

If it is not drained in time, it will seriously affect the respiration of rapeseed roots, resulting in hypoxic rot, lodging and other undesirable phenomena, and increasing the incidence of pests and diseases. Therefore, when the rain stops, we should clean the ditches in time to drain the excess water in the field and reduce the humidity. Do a good job of soil insulation to avoid waterlogging and frost damage.

The wet soil in the ditch can be used to raise soil to prevent falling, especially in some plots where the seedling phenomenon is more serious.

2. Pick moss and top dressing.

If the temperature is higher in winter and spring, the rape will be affected and the growth process will be accelerated. Especially for some early-maturing varieties and early-sown rapeseed, the flowering time will be much earlier. Therefore, it is more susceptible to frost damage, and we should do a good job of picking moss for these rapeseed that bloom and sprout early.

The flower sprouts can also be eaten as vegetables, and can effectively delay the flowering time and prevent frost damage. After picking moss, it is necessary to top dressing once in time, and the fertilizer is mainly water-soluble fertilizer for vines and leaves, so as to restore the growth of rapeseed as soon as possible.

4. Pest control.

Pests and diseases are very harmful to rapeseed, if the control is not done properly, the yield will be reduced, and the harvest will be lost. Common pests and diseases of rape include sclerotinia sclerotinia sclerotinia disease, virus diseases and aphids. Among them, aphids are also one of the main carriers of viral diseases and bacteria.

Therefore, we should pay attention to the prevention and control of aphids. Frequently check the growth of rapeseed, to find out whether it is abnormal in time, after finding out the abnormal phenomenon, to check out the specific cause in time, and then make corresponding measures, not blind medicine, to prevent drug damage.

OK. Rape is a cruciferous plant.

Pre-sowing soil treatment can choose fluoralin (after spraying, it must be about 7 days before sowing), alachlor, metolachlor and so on. Directly it can also be used for soil sealing treatment with dichlor and dol immediately after sowing. Post-emergence herbicides.

You can use quinoxalin.

However, if it is transplanted, herbicides should be applied after slowing down the seedlings, otherwise there will be a phenomenon of pesticide damage to the dead seedlings. In addition, when playing herbicides, we must strictly follow the use methods and precautions of herbicides, and we can also add Ne An herbicide safety additives when spraying herbicides to avoid pesticide damage.

No, I was born in the countryside. If you beat the rape, you will die. I think the rape is still quite delicate. When other grass grows, the only way to do it is to hoe it.

If you have your own rape field, looking at the majority of gramineous weeds such as Mai Niang, early maturing grass, and dogtail grass, the herbicides you can choose are: 150 grams of emulsifiable pyridoxalypin EC, with a dosage of 40-67 ml per mu; 108 grams of high-efficiency flupyrethoxalin EC, 23-30 ml per mu; 240 grams of olethomide EC, 15-20 ml per mu; 5% quinethoxalin EC, 40-60 grams per mu, etc.; On the contrary, if you have a rape field, there are many broad-leaved weeds such as chickweed, cattle chickweed, pig disaster, sparrowweed, mother-in-law, etc., the herbicides you can choose are: 30% dichloropyridine acid water solution, with a dosage of 20-25 ml per mu; 500 grams of herbicidal suspension, 26-40 ml per mu; 30% amchloropyridine (6% amchloropyridine.

Oilseed rape flowering cannot be done with herbicides. It is more sensitive in the flowering stage, has high requirements for the environment, and is more sensitive to herbicides, which is easy to cause abnormal pollination and fertilization, and is easy to lead to malformed grains and grain holding.

Canola has flowered and cannot be treated with herbicides.

Rape flower, is a Brassica plant.

Rape flower plants are straight and clustered, the stems are green and yellow, the basal leaves are spiral and stacked, and the stems and leaves are generally alternate and there are no supporting leaves. The flowers are bisexual, radially symmetrical, with 4 petals, arranged in a cross shape, and the flower pieces are like rice paper, tender and yellow. The stamens are usually 6, 4 long and 2 short, often called the "four strong stamens", the pistil is composed of two carpels, and the ovary is on top.

The stems are cylindrical, mostly between centimeters in diameter, multi-branched, and the stems are soft; The leaves are alternate, the leaves are large, dark green, without petioles and supports. In March and April, the stems are covered with flowers, the flowers are racemes, the sepals are four-petaled, yellow-green, the corolla is four-petaled, yellow. The fruit is longhorned, and in summer, when ripe, it cracks and scatters seeds, purple-black, but also yellow.

The rape flower has four petals, neatly surrounding the stamens, with a simple personality. The petals are delicate.

Oilseed rape is the most important oil crop in China, with an oil content of 33% to 50% in seeds. Since 1995, the perennial planting area is 100 million mu, with an annual output of nearly 10 million tons of rapeseed, accounting for 40% to 45% of the total output of oil crops (excluding soybeans); It also produces about 6 million tonnes of rapeseed cake. The protein content of cake meal is as high as 40%, the amino acid composition of rapeseed protein is reasonable, its lysine content is equivalent to that of soybean, and the content of sulfur-containing amino acids such as lysine and methionine is higher than that of soybean protein, which is the largest source of high-quality feed protein to be developed and utilized in China.

In addition to being used for extracting edible oil and feed, rape can also be used to make margarine and artificial protein in the food industry. It also has a wide range of uses in metallurgy, machinery, rubber, chemical industry, paint, textile, soap making, papermaking, leather and medicine, etc., and has important economic value.

Rape flowers have important economic value and ornamental value, and are tourism resources. The rape has entered the flowering season, and the field is full of yellow. Yu Shao Shiyun:

Rape flowers are blooming all over the ground, butterflies and bees are busy among the bushes; The breeze blows the golden waves, and the intoxicating fragrance is overflowing." Rape flowers are in full bloom, and the pollen is rich in nectar, attracting butterflies and bees to fly among the flowers. The rich floral fragrance is intoxicating, and the beautiful scenery makes ** even.

It's best not to use herbicides, and it's not necessary.

As someone who has been engaged in rape research for many years tells you:

First of all, after rape flowering, if you use herbicides, it will cause no horn fruit, the reason may be that the agent enters the stigma of rape flowers and causes various sterilities.

Secondly, after rape flowering, it will block the sunlight when it grows tall, which will inhibit the growth of weeds, so there is no need to waste time, effort and money.

So, you can not use it at all

Generally, herbicides are not used during this period. One is less safe for rape. Second, at this time, the growth of rape is accelerated, the ground coverage increases rapidly, and weeds cannot grow, so there is no need to use herbicides.

Rapeseed can be plucked and transplanted after 5 days of herbicide.

Rapeseed cultivation method

Land selection and land preparation. The adaptation of rape is stronger, so the requirements for the soil are not so strict, but for the more clayey land, it is necessary to pay attention to turning over the ground and drying it for a few days before soil preparation, and water the land again before sowing, and then sprinkle compound fertilizer and turn the soil again after two days.

Planting method. There are two ways to plant rapeseed, the first is direct seeding, sowing rapeseed in rows at certain intervals, and then pulling out the denser places after the seedlings grow can be used for vegetables. The second way is to cultivate rape seedlings first, and then plant them one by one at certain intervals.

Field management. When the rape grows to 15 to 20 centimeters, it is necessary to fertilize and weed the vegetable field once, the fertilizer applied this time is urea, the purpose of the bridge is to grow seedlings, and so the rape grows to about 40 centimeters is the second fertilization, and the fertilization is the farmhouse fertilizer. The last fertilization is to spray boron fertilizer before flowering, which will help to make the fruit more abundant later.

Disease precautions.

The common diseases of rape are sclerotinia sclerotinia and cataplexy at the seedling stage, which means that you should be diligent, clean up and remove water stains in the field in time, and reduce the moisture. Cataplexy at the seedling stage requires the use of special agents to spray the potatoes. Most growers know that if the rape blooms in winter, it will lead to a significant reduction in the yield of the following year, so in order to prevent this problem, farmers will spray paclobutrazol in advance.

Harvest. Harvesting must be timely, too early there are still a lot of unripe, late then all will fall, so the general harvest time is when the whole rape horn is yellow-green, this is the most suitable period for harvesting, after harvesting to dry, threshing, and then a detailed screening can be.

Summary. During the stubble period before rapeseed sowing after rice harvest, herbicides such as glyphosate and paraquat are used to control weeds or regenerated plants in the field, and rapeseed can be directly sown or transplanted the next day after application.

During the empty stubble period before rapeseed planting after rice harvesting and bush cutting, use biocidal herbicides such as dermal primrose, glyphosate, paraquat and other biocidal herbicides to control the weeds that have emerged in the field or the regenerated plants of the previous stubble, and the rapeseed can be directly sown or transplanted the next day after application.

For the early closure treatment of the fields dominated by gramineous weeds such as Japanese Kanmai Niang, 100 150 ml of 48% fluoralin EC can be used per mu, and water spray can be added 3 to 5 days before sowing to prevent it; or 70 100 ml of 50% acetochlor emulsifiable concentrate per mu, and water spray spray before transplanting rapeseed; In the front block of field hole bushes where gramineous weeds and broad-leaved weeds are mixed, 100 120 grams of 50% dichlor wettable powder or 100 150 ml of 72% metolachlor emulsifiable concentrate can be used per mu, and water spray can be added to prevent Naqing before transplanting.

In rape fields dominated by gramineous weeds in the treatment of post-seedling stems and leaves, 30 40 ml of high-efficiency flupyrimethoxalin emulsifiable concentrate can be used per mu, and water spraying is added to disperse mist at the 3 5 leaf stage of weeds; In rapeseed fields dominated by broad-leaved weeds, 50 60 ml of 30% grass control suspension can be used per mu to spray and remove rapeseed at the 6 8 leaf stage of direct seeding rape and transplanting rape after returning to green; For rape fields where gramineous weeds and broad-leaved You's weeds are mixed, 80 100 ml of quinquine grass emulsifiable concentrate is used per mu, and water spray is added to control the weeds at the 2 3 leaf stage.

Four-sided "weeding technology: field, ditch, roadside, ditch side burning weeds are many species, large amount of occurrence, not only gray planthopper, rice locusts and other pests breeding ground, but also for the next year farmland weeds to provide a large number of provenance, production in the prevention of agricultural weeds at the same time to the prevention of weeds in the field as a key point.