Even cloudy medication needs careful
In greenhouses, due to high humidity, combined with untimely release of the wind on cloudy days, the disease was aggravated. However, spraying pesticides on vegetables in sunny days is prone to injury. To solve this problem, the following points must be noted: RFID silicone wristband are available with the most common RFID chip types in 125KHz, 13.56MHz and in UHF on request. RFID silicone wristband is water-proof, dust-proof and very easy to wear. And wildly used for the swimming pools, spas, gyms, sports clubs. It is also a good solution for hospital management , access control, identification tag, etc. Rfid Wristbands,Uhf Rfid Wristband,Rfid Chip Wristband,Custom Rfid Wristbands Guangdong Xinye RFID Label Application Co., Ltd , https://www.xinyerfid.com
First, choose the medication for the weather. If the weather is not too harsh, it is necessary to spray the morning, to use a fine spray or a high degree of atomization sprayer, even spray. Do not spray too much on the young shoots and tender parts of the crop. Do not spray it directly at close range. Use liquids that do not drip. Do not make large dewdrops. Before putting sheds, make sure the leaves are not wet.
Second, reduce the concentration of the drug solution or reduce the total amount of drug use, and increase the interval between drug use. At this point according to the normal concentration of 80% of the drug ratio, it is best not to mix a variety of pesticides can also reduce the spray amount of 1/4, so as not to produce phytotoxicity. In addition, according to the length of cloudy days and the types of crops, the degree of aging of the foliage can be flexibly controlled. Even when the sky is cloudy, the vegetable farmer should not spray overtime.
Third, after the gloom, do not spray immediately. At this time the vegetable leaves are not strong because of long-term photosynthesis, the leaves are thin, yellow and tender, the fibrous tissue is weak, and it is easy to produce phytotoxicity. Should be ventilated for two days before use. In this case, the old plants exhibit leaf wilting phenomenon, and they must promptly retrace and spray warm water (150 grams of sugar or 100 grams of potassium sulfate per 15 kilograms of water) to slow the emergence of seedlings.
Fourth, the seedling damage at this time should be distinguished from the harms of gas, fertilizer, and physiology in order to avoid misdiagnosis and lead to more serious disasters.