What herbicide can kill rape?

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.

At present, the herbicides suitable for rape production are mainly used for soil sealing treatment, such as acetochlor, isoxachlor (guangdifen), dichlor, and metolachlor (jingdur), etc.; The main use for the control of gramineous weeds in the post-seedling stem and leaf treatment are clethodim, quinoxafen (calculagram), high-efficiency flupyrimethoxalin (high-efficiency gaicao energy), dioxazole (Weiba, Hustri), jingpyroxafen (stable killing), isopropyl oxaether (also effective for some broad-leaved weeds), etc.; It is mainly used for stem and leaf treatment to control broad-leaved weeds, including grass control (Gaotek, Haoshiduo), amibesulfuron, dichloropyridic acid (Birkcao No. 2, Longquan), etc. These herbicides can be used on Brassica napus, and they will not cause pesticide damage when used in strict accordance with the instructions of the relevant products.

1. Soil treatment before sowing: fluorin, oat.

2. Before seedlings after sowing in the field of direct seeding, before and after transplanting in the transplanting field, and before and after seedling planting in the seedling field: alachlor, acetochlor, butachlor, and dichlor.

3. Before seedlings after sowing in the field and after transplanting in the transplanting field: grass dan.

4. Stem and leaf treatment after seedling: pyriflufen, pyrifluethoxalin, dilated hexin, quihefen, and grass control.

The herbicides available for dicotyledon weeds are: Gotek, Haoshiduo, Grass Killing, Oil Grass Mai, etc.; The herbicides available for monocotyledonous weeds are mainly composed of a mixture of chlorfin and quinoxalin.

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

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 field can be weeded after seedlings with 75-120 ml of 60% butachlor EC per mu, or 200-250 ml of 50% grass herb emulsifiable concentrate, add 40-45 kg of water spray, soil closure treatment, the weed damage time in the seedbed stage is short, and the population advantage of vegetable seedlings is easy to form, as long as the early safe growth of vegetable seedlings can be ensured.

Isooxachlor is usually mixed with acetochlor to improve the control effect of weeds that are difficult to control with acetochlor such as Pona. In the case of better seed covering, the use of low dose of isoxagrass pine before seedlings after direct seeding rape sowing generally does not cause pesticide damage.

Maintenance method. 1. Temperature: It is heat-resistant and cold-resistant, so it is not suitable for planting in the north, most of the distribution areas are in the southwest region, and the maintenance temperature should be guaranteed to be above 20 degrees, so it can grow normally.

2. Watering: It likes moisture, especially during the development period, it needs a lot of water, when the temperature is relatively high, it needs to be watered once every two days, and when the temperature is relatively low, it needs to be watered two to three times a week, and the watering should be controlled after the result, in order to promote the growth of fruit pods.

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Hello, Shen Blind is very happy to serve you, you can play, the best date for herbicides in rape fields, Liangliang is rape 3 leaves and a Qian to 6 leaves and a heart of about one, too early, easy to hurt rape, too late, when applying pesticides, miscellaneous filial piety grass is not easy to contact the solution, affecting the effect of weeding.

Wen Qiliang Zhenxin tips: Rapeseed field sales crude herbicide is more recommended formula: Clethodim + grass removal, after the rape 3 leaves are one, the whole field is sprayed, not only to prevent and remove grasses in rape fields, but also to most broad-leaved weeds.