Users like the wind December 28th WeChat: What about 50% isopropenol and 8% clodinafop? Has anyone mixed it?
Netizen Harvest: Mixed use, the effect is very good, but cold can not be used, there will be phytotoxicity.
Clear water: If there is no problem with product quality, normal mixing can be used. It is best to make secondary dilutions.
Like the wind: We all have two dilutions of the drug. Prepare to apply this Saturday, with a good weather behind.
Harvest in the earth: Last year, we encountered a rapid cooling and frost weather after mixing these two drugs. In addition, no water can accumulate in the field after application. It is fine and it can be applied during the rising temperature period.
Like the wind: There is no water in the fields, the weeds are mainly hard grass, and the wheat seedlings have 6 leaves. We are fighting drugs with a large amount of water, about 40 kilograms per mu. How much is the specific dosage?
Harvest in the land: Do not exceed 25% of the recommended dosage.
Water clear: Wheat seedling is 6 leaf period? How many births does one have?
Like the wind: It is the earliest wheat in our farm, sown on October 19th, now with 2 deliveries. The first stem and leaf treatment weeding effect is not ideal.
Shui Qing: Where are you from? What medicine was used for the first stem and leaf treatment?
Like the wind: Yancheng. The first time you used the Hummer.
Shuiqing: The occurrence of hardgrasses in small wheat fields in Yancheng and other places is high, and it is also more resistant to konjac oxadol (Puma, etc.). In recent years, the resistance of the local hardgrass to clodinafop-propargyl was also significantly enhanced. Taking into account the large field wheat seedlings, hard grass should also be relatively large, it is recommended to use the Syngenta company's love Xizo oxalidum herbicide to control this weed, when the grass is large, high density, increase the dosage, the temperature in the early post-low temperature Apply when rising. Avoid severe cold weather in the short term after application.
Like the wind: Considering the cost of medication, our farm now mainly uses clodinafop-propargyl, which is not used here for a long time.
Clear water: There are two tillers of wheat seedlings, and the tolerance to clodinafop-propargyl esters is strong. If the hard grass in the field is large, use 8% clodinafop-propargyl 120-150 grams per acre and add 40 kg of water spray. The field grass weeds should have been all in place, so there is no need to add iridium to hard grass. The recent low temperature, in addition to a period of high temperature in early January 2017, the lowest temperature before and after the temperature below 0 °C, heavy cream in the morning, plus the use of isopropenol "frozen phytotoxicity" risk is relatively large. Isoproturon will reduce the antifreeze ability of wheat seedlings. If this drug is used, the amount of 50% isopropanol can be used in an amount of about 125 grams. Do not overdo it to avoid the risk of “frozen phytotoxicityâ€.
If the clodinafop-propargyl ester is used for a short period of time, the grass is more sensitive to clodinafop-propargyl, and the dosage can be appropriately reduced, and 100 ml of 8% clodinafop-propargyl can be used per acre. However, if grass is resistant to insects, it will be even more troublesome if it cannot be removed.
Like the wind: Yes, more contradictory.
Shui Qing: Where are you from Yancheng? Yancheng has a large north-south span. In the southern areas such as Dongtai, it is relatively safe to use isoproturon after the low temperature in the near future; in the northern coast and Suining, the temperature is low, and it is not safe to use isoproturon in the near future.
Like the wind: Dafeng's. Nearly 10 days after the drug was administered on Saturday, the temperature was higher.
Clear water: If you must use clodinafop-propargyl, a small area is recommended to try oxazoline oxalate, to see the sensitivity of the weed to the drug, as an alternative drug. Once clodinafop-propargyl was removed, it was cleared early with oxazoline. Both drugs can be applied during the low temperature period, except that the weeding speed is slower during the cold period. U.S. Dow AgroScient's preferred imidoxime and Bayer CropScience's Simetrasulfame-methyl and other drugs can also be used to remove hardgrass, but its applicability is relatively poor in the cold period. Choose small area trials.
Like the wind: OK. Love Xiazoline oxalate we also have, used in barley fields.
Shui Qing: Several medicines that I mentioned just now have sufficient supplies on the local market. The oxazoline oxalate can be used on barley and wheat. From the weather forecast information, there is indeed a warmer weather in the past 10 days after December 30th. It is suitable to remove the herbicide. You can use the clodinafop-propargyl and isoproturon for weeding. Apply the medicine within two or three days from the end of the month to the beginning of the next month. That's it. The amount of 50% isopropanol can be relaxed to about 150 grams.
From the previous year's drug use situation, Dafeng, Jianhu and other places with some blocks of clodinafop-propargyl in addition to hard grass effect is not very good. After treatment, even if only some resistant weeds remain, it is troublesome.
Like the wind: There is still a difference between our farms and the surrounding farmers. In our farm, it is very important to use clodinafop in addition to hard grass.
Shui Qing: It's best to be sure. Weeds differ from other migratory pests such as rice leaffolders and brown planthoppers. Due to their different application habits, there are significant differences in resistance between regional and field crops.
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