The acetylene herbicide herbicide developed and developed by ciba-Geigy is an aryloxyphenoxypropionic acid herbicide, which can effectively inhibit the biosynthesis of esters into acetyl-sensitive A hydroxylase inhibitors. This product is very soily. Degraded to the free acid phenyl and pyridine fractions into the soil. This product can control grass weeds such as Mai Niang, oat grass, ryegrass, common bluegrass, and other green grass. Mainly used to control wild oats, see Mai Niang, oats, ryegrass, common bluegrass, foxtail and so on.
Introduction to common problems in acetylene ester use
1. The herbicides such as oxazol and grasses commonly used in wheat fields have no control effect on bluegrass. Vinyl oxalate has very low control effect on bluegrass. Isoproturon has good control effect on bluegrass and can be mixed with clodinafop.
2. The safety of acetylene oxalate to wheat seedlings is high. Even in the low temperature period, the safety of wheat seedlings is better, and it can exert better herbicidal effect. However, in the case of excessive use of clodinafop, the growth of wheat seedlings will be inhibited. The obvious symptoms of phytotoxicity are yellowing and growth inhibition of wheat leaves.
3, benzenesulfuron-methyl and acetylene oxalate have a certain antagonistic effect, the amount of acetylene ester is appropriately increased when mixed to ensure the control effect on grass weeds. In the spring, the weeds in the field are generally larger, and it is usually necessary to increase the amount of the drugs such as acetylene ester and oxazolone. After the dosage is applied, it should be noted that the dosage of the oxazolone and its compounding agent should be strictly increased. Otherwise, the concentration of oxazolone applied too much may cause contact damage to the wheat seedlings.
Advantages and disadvantages of "acetylene ester"
1. Weeding spectrum: There are no particularly big differences between clodinafop and oxazolamide. The killing spectrum is basically the same. 20g of Maiji is looking at Mai Niang, and Japan’s effect on Mai Niang is already very good. For valerian, the dosage should be increased to 30g, and it is undeniable that acetylene ester is slightly better than oxalicin.
2. Tolerance: The old post said that acetylene ester has no effect at low temperature. This view is really a slippery world. I suspect that the author has not yet understood what acetylene ester is, because the selling point of acetylene ester is precisely The adaptability of oxazoline and grass to the unfavorable environment. The first thing to do is to withstand low temperatures. It can be said that the temperature has little effect on the final effect of clodinafop, but the temperature is too low, and the speed of dead grass will be greatly reduced. Everyone knows this is a matter of course. Secondly, the resistance to rain erosion of clodinafop is better. Generally speaking, we are conservatively introduced for 2 hours after the drug, while it takes 4 hours for the oxacillin.
3. Safety: Acetyl oxalate is a professional wheat herbicide developed by Syngenta, Switzerland. If the farmers use the correct method, it is basically difficult to get any harm, and his mixedness is also very good. He and benzosulfuron, isoproturon The mixed effect of flupirtine and the like is very good. Here is a real case that just happened in 2012. In early spring this year, Zhejiang rains in a row. Many big households missed the time of spraying and dragged to the jointing stage. It was originally impossible to fight herbicides during the jointing period, so we did not recommend it, but there are several The big account of the experience used Maiji himself, and other people followed suit to follow suit. In the end, nearly a thousand acres of wheat jointing period did not cause any problems!
4. Popularity: Laotie believes that Syngenta ergoylate is a sheep-type marketing, and all the agricultural resources are known. Does Syngenta have the main products of sheep marketing? No meeting, your headache is not bad, and I don’t know anywhere else, but in Zhejiang, if it can replace the oxazocilin in terms of effectiveness, profit, safety, popularity, and retailer recognition. Only acetylene ester, so we carefully selected 3 products from Syngenta this year, one 25% paraquat, one 50% pymetrozine peak and the other 15% acetylene ester Maiji.
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