2 A 4 sodium chloride should be applied in the wheat 4 leaf stage before jointing, wheat 4 leaf stage before or after the jointing easy to produce phytotoxicity, usually with 13% 2 per acre 4 sodium chloride water 300 ~ 460 ml. The temperature has an effect on the drug's efficacy. Generally, the drug is used when the average daily temperature is above 5°C. The higher the temperature is, the better the herbicidal effect is. Try to apply the drug at high temperature, and do not allow strong cooling for about 1 week after application. Low temperature frost weather, otherwise it is prone to injury. In addition, the physiological metabolic function of wheat seedlings in the low-temperature period will decline. If the 2 wheat and 4 chlorine are applied, if the wheat seedlings cannot timely convert the drug metabolism absorbed into the body into non-toxic substances, it may be harmed by phytotoxicity and growth inhibition. 2 A 4 chlorine should not be used when the minimum temperature is lower than 2°C. In production, it is often used in combination with fluoproxil and other drugs to reduce the risk of phytotoxicity and broaden the spectrum of herbicides.
Fluroxypyr is safe for use in wheat fields. Wheat can be used in the 2-leaf stage to the booting stage. Generally, it uses 200 g/L chlorofluoropyr- oxybenzoin EC 50-70 mL per mu. Fluroxypyr can be applied normally during the cold period. Although the symptoms of weed poisoning appear slowly after application, the weeds will still die soon after the temperature rises, basically without affecting the control effect.
The application of the above formula at a temperature of 2-15°C does not generally result in severe phytotoxicity when the wheat age is large and the growth is strong. Due to the large amount of 2A and 4 chlorine, the recent cooling weather will increase the risk of phytotoxicity. The above blocks can further observe the growth of wheat to clarify whether measures need to be taken to remedy the situation. Wheat is affected by the symptoms of hormone-type phytotoxicity, such as leaf chlorosis yellow, plant deformity distortion and so on. If wheat is sterilized by herbicides, the use of Bichu 0.136% erythromycin B wettable powder, humic acid, potassium dihydrogen phosphate and other drugs and fertilizers will help restore the growth of wheat seedlings.
Dried fruit products as the name implies, dried fruit products are pre-treated fruits after selection, washing and dehydration to the water content of 15 ~ 25% products. The volume of dried fruit is about 11 ~ 31% of that of Fresh Fruit, and the weight is about 10 ~ 25% of that of fresh fruit, so it can significantly save the cost of packaging, storage and transportation, and it is easy to eat and carry. Common dried fruits are raisins, red dates, dried mango, dried kiwi, dried strawberry and so on.
Dried Fruit,Dried Mango,Raisins,Red Dates,Dried Kiwi,Dried Strawberry
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