How to use atrazine, the role of atrazine and how to use it

1.The use of corn field summer corn is used before emergence after sowing, and the soil organic matter quality is 1%-2% in North China, Shandong and other places, 150-200 grams of 50% wettable powder per mu, or 175-200 ml of 40% suspension agent; In Northeast China where the soil organic matter content is greater than 3%-6%, 200-250 grams of 50% wettable powder or 200-250 grams of 40% suspension agent per mu, the lower limit for sandy soil and the upper limit for clay soil. 1-3 days after sowing, evenly spray the soil surface with 30 kg of water.

After the emergence of corn, the appropriate period is the 4-leaf stage of corn and the 2-3-leaf stage of weeds; For sandy soils with low organic matter content, use 200-250 grams of 50% wettable powder or 40% suspension agent per mu. Spray on water 30-50 kg. Spring corn with 200-250 ml of 40% suspension agent per mu, add 30-50 kg of water, spray the soil surface before seedlings after sowing, mix soil after spring drought medicine, or irrigate appropriately.

Or in the 4-leaf stage of corn as stem and leaf treatment. In the continuous cropping area of maize and winter wheat, in order to reduce or eliminate the pesticide damage of atrazine to wheat, atrazine can be used to reduce the amount of atrazine and mix it with herbicides of grass jingjin, lasso, dol, 2,4-d butyl ester, bandi farmer and green melon.

2.Sugarcane field use 5-7 days after the sugarcane is planted, the weeds are partially unearthed, 200-250 grams of 50% wettable powder or 40% suspension agent per mu, 30 kg of water is added, and the surface is evenly sprayed.

3.Tea gardens, orchards, vineyards use the peak period of weed germination in the field from April to May, first eradicate the unearthed grass and overwintering miscellaneous strokes, and then use 250-300 grams of 40% suspension agent per mu to evenly spray 40 kg of water on the soil surface.

Atrazine is a herbicide for pre-bud soil treatment, and can also be treated with stems and leaves after budding. Drought has a great impact on the efficacy of the medicine, mainly on dicots, focusing on closure, and the effect on grass is not ideal.

1) Trade name: atrazine, gesaprim, aatrex.

2) Dosage form: % wettable powder, % water suspension, % granules, etc.

3) Properties and functions Atrazine pure product is white crystal, the original drug is white powder, stored at room temperature for 2 years, the content of active ingredients is basically unchanged, it is more stable in slightly acidic or slightly alkaline media, and can be hydrolyzed by stronger acid and stronger alkali at higher temperature. Non-flammable, non-corrosive, low-toxicity herbicide.

Atrazine is a selective systemic conductive nitrogen benzene pre-seedling and post-seedling herbicide, which is mainly absorbed by roots, and has little absorption by stems and leaves, and can be quickly transmitted to plant meristem and leaves after root absorption, interfering with photosynthesis and causing weeds to die. In resistant crops such as corn, it can be decomposed by corn ketase to form non-toxic substances, so it is safe for corn and other crops. It is easy to be washed by rain to a deeper layer, so it has an inhibitory effect on some deep-rooted weeds.

It is decomposed by microorganisms in the soil, and the residue period is affected by factors such as the amount of medicine per unit area, soil texture, rainfall and temperature, and can generally last for about half a year. It is mainly used to control 1-year-old grasses and broad-leaved weeds, and also has a certain inhibitory effect on perennial weeds.

4) How to use Weeds can be applied early before and after budding, which can be used for soil treatment or stem and leaf treatment. Soil treatment application rate: 150 250 ml of 40% atrazine water suspension per mu for light sandy soil, 300 400 ml per mu for medium loam soil, 400 500 ml per mu for heavy clay and soil with more than 3% organic matter content.

It can be mixed with a variety of herbicides such as Doer, alachlor, acetochlor, diuron, and Kewuzi.

5) Precautions atrazine has a long residual effect period and is sensitive to a variety of crops, and after the application of the drug in the orchard, it is not suitable to intercrop other crops such as wheat, soybean, cotton, etc. Grape and peach trees are sensitive to atrazine, showing leaf yellow, lack of green, fruit drop, and serious yield reduction, so this agent should not be used.

Summary. Atrazine is a selective systemic conduction type of nitrogen benzene pre-seedling and post-seedling herbicide, which can be quickly conducted to plant meristem and leaves after weed root absorption, interfere with photosynthesis, and make weeds die, mainly used to control annual gramineous weeds and broad-leaved weeds, and also has a certain inhibitory effect on perennial weeds. Atrazine can be used to remove horsetail, barnyard grass, dogtail grass, sedge, Kanmai Niang, cruciferous family, leguminous weeds, etc.

Atrazine is a selective systemic conduction type of nitrogen benzene pre-seedling monitoring, post-emergence herbicide, weed roots can be quickly transmitted to plant meristems and leaves after absorption, interfere with photosynthesis, make weeds die, mainly used to prevent and control annual grass weeds and broad-leaved weeds, and also have a certain inhibitory effect on perennial weeds. Atrazine can be used to remove horsetail, barnyard grass, dogtail grass, sedge, Kanmai Niang, cruciferous family, leguminous heterotype rock grass, etc.

Atrazine is a selective systemic conduction type of nitrogen benzene pre-seedling and post-seedling herbicide, which is mainly absorbed by roots, and very little absorbed by stems and leaves, and can be quickly transmitted to plant meristems and leaves after root absorption, interfering with the photosynthesis of weeds and causing weeds to die. In resistant crops such as corn, it can be decomposed by corn ketase to produce non-toxic substances, so it is safe for corn. The drug is easily washed by rainwater to the deeper layers of Hongchi, so it has an inhibitory effect on some deep-rooted weeds.

Atrazine is mainly used for the control of annual gramineous weeds and broad-leaved weeds, and also has a certain inhibitory effect on perennial weeds.

Usage: After sowing, before emergence, if it is a continuous cropping area of corn and winter wheat, atrazine can be used to reduce the amount and then mixed with alachlor, cyanazine, metolachlor, capryloylbromobenzonitrile, and Ameroon herbicide. Sugarcane fields:

5-7 days after planting, when the weeds are partially unearthed, the medicine is used, and the surface is sprayed reasonably and evenly according to the area. Orchards, tea gardens and vineyards: In April and May, the peak period of weed germination in the field should be used, and the unearthed weeds and weeds should be eradicated first, and then evenly sprayed on the surface.

Atrazine is a selective systemic conduction type of nitrogen benzene pre-seedling and post-seedling herbicide, which is mainly absorbed by roots, and very little absorbed by stems and leaves, and can be quickly transmitted to plant meristems and leaves after root absorption, interfering with the photosynthesis of weeds and causing weeds to die. In resistant crops such as corn, it can be decomposed by corn ketase to produce non-toxic substances, so it is safe for corn. The drug is easily washed by rainwater to the deeper layers of Hongchi, so it has an inhibitory effect on some deep-rooted weeds.

Atrazine is mainly used for the control of annual gramineous weeds and broad-leaved weeds, and also has a certain inhibitory effect on perennial weeds.

1. Introduction to atrazine smoke.

1.Target: Atrazine for tobacco is a special herbicide for corn. Weeds to be controlled include annual barnyard grass, Amaranth retroflexus, Acetina sage, Purslane, Horsetail, Fennel and Incense.

2.Toxicity: Low toxicity to humans and animals, but atrazine has been gradually phased out in Europe. Charcoal filters can remove atrazine from drinking water, but it is difficult to treat atrazine from lakes and ponds.

Two. Smoke atrazine use.

1.Spray directly with water and spray it in the crops. The dosage of atrazine for different active ingredients is also different, and the dosage on the instructions shall prevail.

The dosage of the active ingredient nicoatrazine is generally 150-200 ml mu;

The dosage of the active ingredient of tobacco atrazine is generally 100-140 ml mu;

4.The application can be carried out in the morning or evening, and the temperature is high around noon, and the spray is easy to evaporate, which affects the efficacy.

Three. Precautions for use, 1The best application time is 3-5 leaf stage of corn and 2-4 leaf stage of weeds, and spraying can be done evenly.

2.Atrazine is a special herbicide for corn, and it is best not to use it for other crops to prevent damage to its locust crops.

The contraindications to atrazine herbicides are as follows:1. The effective period of atrazine is long, do not increase the dosage of atrazine at will. In order to avoid pesticide damage to crops that are sensitive to later crops.

2. The use of corn plots should be before the 3-5 leaf stage.

3. Do not mix with organophosphorus pesticides.

4.Do not use it in Xiaochun high temperature and drought, low temperature and rainy and waterlogged plots to prevent pesticide damage.

5. It is best to use it only once a season to prevent the increase of drug residues in the soil.

6. Do it in the afternoon when the temperature is low or when the dew is dry in the morning.

7. Be cautious in the rain within 4 hours after spraying, and appropriately reduce the concentration to make up for spraying.

Atrazine mainly conducts the liquid medicine to the plant meristem and leaves through the roots of weeds, causing certain interference to photosynthesis, and then causing the weeds to die, and the agent has an inhibitory effect on some deep-rooted weeds.

<> usage method: sugarcane field, 5 7 days after sugarcane planting, when the weeds are partially unearthed, use 48% wettable powder 200 to take 250g 667mz or 38% suspension He attack agent 200 250ml 667m2, 30L of water, and spray evenly on the surface of Zen Kong. Tea gardens, orchards, first unearthed weeds and weeds are eradicated, and then with 38% suspension agent 250 300ml 667m2, 40L of water evenly sprayed on the soil surface.