Time to find After the spring, the day is getting longer, the temperature is gradually rising, and the wheat and weeds grow rapidly. It is necessary to grab the early and grab the medicine quickly. Farmers are reminded to carry out wheat chemical control before 9:00 am after 9:00 am, especially to avoid the rainy weather. After the spring, it is very prone to cold spring, to avoid the occurrence of frozen drugs. It is necessary to hurry up and use the medicine when the cold tail warms up and the temperature rises. In the early spring, the temperature changes indefinitely. Pay attention to the local real-time weather forecast when applying the medicine. Pharmacy selection Look at the grass phase and the grass age before weeding herbicides must look at the grass phase, such as the division of grass weeds and non-grass weeds; see weed density and grass age problems (years after weeds are too large) ). Accurate choice of agents For the selection of chemical herbicides, you must choose the products of the regular registered manufacturers, do not use the agents containing hidden components. At present, there are mainly several types of pharmaceuticals in the market: grass weeds, which are represented by oxazocilin and acetylene oxalate; for the field mainly based on wild oats in the north of Huaihe. Single-agent or compound preparation represented by methyl disulfuron: It can be used mainly for bluegrass, hard grass and maiden in the south of Huaihe River. Broadleaf weeds, dimethyltetrachloride single agent and compound preparations are used for the mother-in-law, beef sorghum, sauerkraut, and thorny vegetable fields. The wheat must be used after 4 leaves and 1 heart until the jointing. Drug volume Use the amount of foot medicine, the amount of water in the foot, spray evenly, and dilute to prepare the mother liquor. After the year, the chemical control time of wheat is relatively short, and the weed grass age is relatively large. It is necessary to maximize the control effect. It is recommended to increase the dose of weeds of different kinds of weeds and different grass ages (not blindly increase and increase). Rationally compounded for chemical control. At this time, chemical control should be carried out due to the rapid growth of wheat. At least one acre, one bucket and half water should be guaranteed at the time of application. The mother liquor should be diluted twice to evenly spray to avoid the leakage of the wheat seedlings. Note: It is forbidden to fight herbicides when wheat enters jointing stage. Disclaimer: Some articles on this website are transferred from the Internet. If legal rights of third parties are involved, please inform this website. phone
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By setting the shrinking cuffs, it is beneficial to make the cuffs fit the wrists, prevent the cuffs from loosening, and prevent the gloves from slipping off during the operation and the operator's hands are exposed to the gloves.
The design of the new humanized protective surgical gown has been improved in the key areas of the gown. The forearm and chest area are double-thickened, and there are handguards in front of the chest and abdomen. By arranging reinforcing sheets (double-layer structure) in key areas, it is beneficial to improve the water-permeability of surgical gowns and improve safety.
Three chemical standards for wheat chemical weed control>
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