Penoxsulam Advantages: It is very safe and can be used in paddy fields of various cultivation methods such as Yuba, and can be used in japonica rice and japonica rice varieties in various cultivated rice areas throughout the country, and can be used in most growth stages of rice. The dosage range is wide, and the dosage of 33-100 ml per acre is safe for rice, based on 2.5% dispersible oil suspension. In addition, the drug has a prominent effect on killing valerian, and is recommended as the first drug for killing. It is also effective for many annual broadleaf grasses and some sedges. It has good compatibility and can be compounded with various agents. The introduction of rice hi and rice pupa, which is compounded with cyhalofoprin and butachlor, is well received by the market. Disadvantages: The action site is single, the resistance is on the rise, and it is ineffective for thousands of gold. In view of the outstanding advantages of the product and the expiration of the patent, the application for registration has blossomed everywhere. If it is not well managed and misapplied, it will quickly go into recession. Cyhalofop-butyl Advantages: It has a special effect on the weeds of the thousand gold and weeds, and it also has certain control effect on the weeds; it is extremely safe, and it is safe to use all kinds of paddy fields in various cultivation methods in the country. Compounding. Up to now, aryloxyphenoxypropionic acid has been used as the safest herbicide variety in rice fields. Disadvantages: Mixing with hormonal agents such as 2, 4, and 4 will cause antagonism. It is not recommended to be mixed with paclobutrazol biomodulator. In recent years, the control effect has shown a downward trend. It has been increased from 40 ml to 60-80 ml from the initial mu, and over 100 ml in some areas. In the face of the upward spread of thousands of gold weeds, the dosage of the drug has increased over a period of time. Bismuth Advantages: high activity, wide herbicidal spectrum, good herbicidal effect; control of rice Lishihe, some enterprises plus safeners, is currently the best medicine, and also has very good control effect on double-eared gar and older sedge. It can also prevent a variety of weeds and other grass weeds, and also has good control effect on some hard-to-treat grasses such as broadleaf grasses and sedges. It is suitable for rice fields with several different cultivation methods. Disadvantages: poor control effect on thousands of gold, poor resistance to japonica rice and japonica rice, there have been reports of related phytotoxicity, and it is not safe to use drugs below 15 °C. Currently, it is mainly used in southern rice areas. It is necessary to improve the spraying technique, control the dosage and prohibit high-concentration spraying or re-injection. In view of the rising trend of rice lyophile and refractory valerian and the high activity of this agent, but there are certain risks, it is expected to rely mainly on the amount of compound preparation. Oxazolamide Advantages: high activity, good grass killing effect, can prevent a variety of refractory grass weeds in rice fields, such as valerian, Qianjin, etc., especially for the crabgrass and goosegrass in the dry field, which has outstanding control effect, than any other The medicine is good. It can be used in several rice fields with different cultivation methods. Disadvantages: Ineffective for sedge, limited compounding agent, there is data indicating that it can only be compounded with bentazone, and compounding with sulfonylurea should be applied after trial, and compounding with phenoxycarboxylic acid will inevitably Produce phytotoxicity. It is not recommended to apply rice before 3 leaves, there is unsafe use under low temperature conditions, and there have been reports of phytotoxicity in northeast rice areas. Can not be sprayed with a mist sprayer, this medicinal product has high activity. In recent years, the compounding agent with cyhalofop-butyl ester has shown a good herbicidal effect on the market, which is relatively popular in the market. As the area of ​​the live field increases, the damage of the crabgrass will increase, and the compounding agent may show a certain increase. Pyrimidine Advantages: high activity, wide spectrum of killing grass, good control effect. It can prevent several kinds of cultivation methods and various annual and perennial grasses, broadleaf grasses and sedges on the rice field, especially for some malignant weeds that are difficult to control, such as rice blast, rice lee, and The sedge, the stalk, the stalk, the wild sage, etc. showed very good control effect, especially when adding the silicone spray auxiliaries, it can obviously improve the efficacy, and it is also the best and the best single agent for the rice field. Variety. Disadvantages: It can only be applied to the stems and leaves of the weeds. The soil treatment by the toxic soil method is ineffective; the effect is slow, and it will gradually take effect after 7 days of application; when the dosage is increased under low temperature conditions, the rice seedlings will be yellowed. However, it can be restored; it is necessary to add synergists when it is used to control older grasses and sorghum. This product has good control effect, but it has not been widely promoted, and the application technology is still not perfect. In the future, we must improve the use of medicine technology and exert its better results. Quinclorac Advantages: It is an excellent agent for controlling valerian. It has been used in domestic rice fields for more than 20 years. It has less dosage, long duration of application, wide application period, and outstanding effect on older sedges in 4 to 7 leaf stage. Leaf grass also has certain control effects and can be applied in rice fields of various cultivation methods. A number of different dosage forms have been marketed for the convenience of rice farmers. Disadvantages: Due to long-term single use, it is suspected to produce serious resistance in rice areas such as Heilongjiang, Guangdong, Hunan, Zhejiang, etc.; excessive use or medication before the 2 leaf stage of rice is easy to produce phytotoxicity; Chlorpyrifos Advantages: It not only can prevent a variety of broadleaf grasses, but also has good control effect on sedges; it has high safety and can be applied to multiple rice varieties with different cultivation methods in rice fields in the country. Match. Disadvantages: The dosage of the acre is too large, and the cost is slightly higher; when the light is lacking or the temperature is low, the drug is ineffective. It is a traditional old variety of rice field herbicides. It is very popular among rice farmers in Jilin Province. It is expected that the dosage will be stable and there will be no obvious fluctuations. Fluroxypyroxyacetic acid Advantages: Good systemic absorption, it is the first choice for controlling water-absorbing peanuts, and can prevent a variety of broad-leaved grasses. It can be used in paddy fields with rice fields and various cultivation methods, and has no adverse effects on the lower crops. Disadvantages: affecting the efficacy at low temperature but ultimately does not affect the herbicidal effect; in the rice areas where it is difficult to prevent the removal of broadleaf grass, the amount will increase. Oxazolone It has been registered as a herbicide in wheat fields on rice fields. Advantages: contact type, fast killing grass, can prevent a variety of broadleaf weeds. Disadvantages: Spraying should be uniform, can not be combined with emulsifiable products; when the temperature exceeds 30 °C, spraying is prone to phytotoxicity. A few years ago, foreign companies have registered in the rice field and the compound of 2, 4 and 4 chlorine is a very good agent for controlling rice field broadleaf. It is especially suitable for the field of broadleaf grass in the middle and late stages of rice fields. There is a certain amount of rice in the rice area, which is affected by safety risks and weed communities. 2 sodium tetrachloride For the phenoxycarboxylic acid species, the raw acid is rarely used in production, but the sodium salt, ammonium salt and dimethylamine salt are widely used. Advantages: fast killing grass, good control effect on a variety of broadleaf grasses, sedges; low cost, high cost performance, can be compounded with a variety of agents. Disadvantages: The dosage and duration of medication are relatively strict, which poses a certain safety risk to rice. It is an indispensable variety of compounding agents, but it is not a large variety because of its limited dosage. It is safer than 2,4-D in the northern rice area. Xicaojing Advantages: The herbicidal spectrum is wide, which can prevent a variety of broadleaf grasses and some grasses and sedges. It has excellent control effect on the eye vegetables that occur in the middle and late stages of rice fields. The poisonous soil method can effectively prevent rice paddy. Disadvantages: The temperature is over 30 °C, the drug is easy to produce phytotoxicity, and the high dose of heavy spray is not safe for rice. This product can be referred to and will not be described. (Source: Foreword herbicide application and resistant weed control) This article URL: What are the commonly used herbicides in rice fields? What are the precautions in using? Medical Equipment Disposal,Syringes Needles Sizes,Disposable Syringe,Insulin Syringe FOSHAN PHARMA CO., LTD. , https://www.fs-pharma.com