Zoxaconone belongs to the class of triazolinone stem and leaf treatment herbicides , and is suitable for controlling broadleaf weeds and sedges in various grass crop fields, and is commonly used for weed control of crops such as wheat and rice. The herbicide is widely used, especially for resistant malignant broadleaf weeds and sedges.
Today, the Chinese pesticide network Xiaobian will introduce the specific application and related knowledge of oxadiazon as follows, for your reference!
I. Control of oxazolone <br> Mainly used to control broadleaf weeds and sedge such as pork stalk, wild sesame, mother-in-law, ramie, stalk, scorpion, red heart scorpion, empty tube, morning glory, scorpion Petal flower, acid leaf spider (liao), willow locust, coiled stalk, scorpion scorpion, iron leeks, sauerkraut, qumqi, wild sesame, small fruit flax, terracotta, sylvestris, White mustard and other weeds. It has excellent imitating effect on weeds such as swine fever, ramie, red heart scorpion, scorpion, lacquer, maijiagong, and empty tube, and has good resistance to weeds resistant to sulfonylurea herbicides. active.
Second, the application technology of oxadiazon <br> The use of oxadiazon should be selected on time to better play the drug. The application should be selected in the morning and evening when the temperature is low and the wind is small; before 8 o'clock in the morning, after 4 o'clock in the afternoon, the temperature should not exceed 30 °C when applying, but not lower than 5 °C, the relative humidity of the air is higher than 60%, and the wind speed is not More than 4m / s, otherwise should stop applying. Suitable period of application: weed 2-3 leaf stage is the best period of drug use, it is forbidden to apply after wheat jointing stage. Because of the mechanism of action (no systemic activity), oxazolone is required to be comprehensive and uniform during spraying. All the weeds are fully administered, which is ineffective for weeds that grow after application, and it is important to note that the agent cannot be applied to broadleaf crops.
Third, the use of oxazolone <br> After the seedlings stem and leaf treatment, the dosage is usually 9-35g / hm [acre of 0.6-2.4g], suitable for the amount of amp is 1.6-2 grams.
When oxazolone is used in winter, the dosage per acre is generally 0.8 grams, and the water consumption per acre is 30 kilograms. When the spring is removed, the amount of oxalofenone is generally 1.6 grams. It is recommended to add enough water spray, the water consumption per mu is preferably 50-60 kg, so that the weeds in the wheat field can be sprayed and sprayed to improve the herbicidal effect (oxazolone is a contact-killing agent, sprayed onto the grass). In order to play the role of weeding; on the other hand, the application concentration is not too large, which is conducive to improving the safety of wheat seedlings.
Fourth, the consideration of oxadiazon
1 , oxadiazon is an ultra-efficient herbicide, but wheat is highly resistant to oxadiazon, which can be used from wheat three-leaf stage to before jointing (generally from November to March), but if Improper application, yellow burn marks on the leaves of wheat seedlings after application, the dosage is large, the concentration of the drug is high, the burn marks are large, and the phytotoxicity is obvious. Therefore, the dosage must be accurate when applying the medicine. It is best to mix the medicine into the mother liquid and then add the sprayer. The spray should be uniform and should not be re-sprayed to avoid serious phytotoxicity of the crop.
2, no systemic activity, the spray must be even and thoughtful to ensure the herbicidal effect. When the weed density is too large or the grass age is too large, it is necessary to increase the dosage appropriately, and at the same time increase the water consumption, spray evenly, and it is not suitable for heavy spray leakage to improve the herbicidal effect and prevent the wheat seedlings from producing drug spots. Zoxaconone has a contact-killing effect on weeds only, and there is no soil blocking effect. During the period of administration, it should be carried out as much as possible after the emergence of most of the weeds in the field.
3. After the spraying of wheat from jointing to booting stage, yellow spots will appear on the leaves, but normal green can be restored 1 week after application, which does not affect the yield.
4. The equipment for spraying oxadiazon should be thoroughly cleaned to prevent the residual drug from acting on other crops.
5. Precautions for mixing oxadiazon with herbicides
1. When spraying zodiazonone and its compounding agent with benzosulfuron, 2 methyl 4-chloro and bensulfuron-methyl, no additives such as washing powder and silicone can be added to the liquid, otherwise it is easy to cause phytotoxicity to crops. .
2. The drug containing oxadiazon should not be mixed with emulsifiable concentrates such as humulus (fine oxacillin), otherwise it may affect the dispersibility of oxadiazon in the drug solution. The distribution of the drug on the leaves after spraying is not All of them are susceptible to phytotoxicity, but they can be used separately. For example, if you take a medicine on the first day and another medicine on the next day, there will be no phytotoxicity, but considering the bensulfuron-methyl and bensulfuric acid. Sulfone, 2, 4, 4 chlorine and other agents will affect the efficacy of oxazolene, preferably around one week.
3. For the mixed plots of grass weeds and broadleaf weeds, acetylene oxalic acid and oxazolone and their compounding agents with benzosulfuron and bensulfuron can be mixed, and two types of weeds are eliminated.
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