Pesticides play a vital role in agricultural production, but due to people's one-sided understanding and irrational use, coupled with the occurrence of pesticide residues in some places, so that some people "talk about drug discoloration", in order to pesticides In the use of profit-avoiding, Jinzhong City Agricultural Bureau Plant Protection Station carried out the "2010 Pesticide Market Supervision Year Publicity Campaign", organized propaganda, guided farmers to scientifically purchase pesticides, safely and rationally use pesticides, maximize the prevention and control effect, reduce The cost of medicine will further improve the safety of agricultural production and the quality and safety of agricultural products. First, scientific purchase of pesticides When purchasing pesticides, you should carefully read and read the pesticide labels, and specifically do “six lookâ€: 1 Look at the name, whether the active ingredients, the names, contents and dosage forms marked below the name are clear. By comparing and distinguishing different products, pesticides without the contents and contents of the active ingredients are not purchased. 2 Look at the “three certificatesâ€, referring to the pesticide registration certificate number, product standard number, and production approval certificate number (three certificates for domestic pesticides must be available). 3 See the scope of use, first, purchase pesticides that are consistent with the crops or targets to be used; second, verify that the method of using the labeled pesticides is suitable for their own use; third, it is preferred to use less, low toxicity, small residue, and good safety. The product. 4 Look at the date of manufacture, expiration date and net content. Do not purchase pesticides that have no production date or expired, and check the weight (net content) of the product on the pesticide label. 5 Look at the appearance and label of the product. First, observe the appearance of the product. The powdery and granular products are selected without agglomerates and the thickness is uniform; for the emulsifiable or liquid liquid products, no sediment or suspended matter is selected. The second is to observe the appearance of the packaging and label, and the label or manual of the qualified product is printed clearly. The third is to observe whether the content of the label is complete. 6 Look at the price, the price of pesticides is related to the active ingredients and their contents, product quality and packaging specifications. It is necessary to choose pesticides produced by enterprises with good long-term use and high integrity. They are not cheap or have great differences with similar products. Pesticide. Second, safe and rational use of pesticides 1, choose the variety Select suitable pesticide varieties for different control objects. For example, insects that bite the leaves may use drugs with strong stomach toxicity; like cabbage caterpillars, drugs with stomach toxicity such as dichlorvos should be used; for aphids, planthoppers, and spider mites, systemic agents such as imidacloprid should be used. 2, preparation of pesticides The first is to calculate the dosage. Generally, the dosage per acre should be calculated according to the application area and the recommended dosage on the label. The second is the dispensing. 1. The pesticide diluted with water: first dilute the pesticide preparation into “mother liquor†with a small amount of water, and then dilute the “mother liquor†to the required concentration. 2, mixed with soil, sand and other pesticides: should be diluted with a small amount of carrier (fine soil, fine sand, solid fertilizer, etc.) to evenly dilute the pesticide preparation into a "mother powder", and then diluted to the required amount. The third is to pay attention to the safe preparation of pesticides should be carried out away from residential areas, livestock pens and water sources, the pharmacy should be used with the distribution. 3. Use pesticides The prevention and control of crop pests and diseases should follow the principle of “prevention first, comprehensive preventionâ€, and minimize the number and usage of chemical pesticides to reduce the impact on the quality and safety of the environment and agricultural products. One is to take good medication time. Most pests and diseases are in the early stages of the disease, and the symptoms are very light, such as Helicoverpa armigera is easy to control before the third age. Then, most bactericidal and insecticides are not effective, but miss the best use time. The second is to grasp the amount of medicine used and the amount of water used. When some farmers use pesticides, in order to reduce the workload, they often use more medicine and less water. In fact, in the effective concentration of pesticides, the effect depends on the coverage of the liquid. For example, when spraying insecticides and fungicides, sufficient water consumption is necessary because the eggs and germs are concentrated on the back of the leaves and adjacent roots. In the soil, if the water consumption is small when applying the medicine, it is difficult to spray the whole plant, and the residual eggs and residual bacteria in the dead corner are easily outbreak again. If you increase the pesticide The use of concentration will enhance the resistance of pathogens and pests, and phytotoxicity will occur if the concentration is exceeded. The third is to choose a good performance applicator. The medical equipment of the regular manufacturer should be selected and the worn nozzles should be replaced regularly. It must be used exclusively for medical devices that have been sprayed with herbicides. The fourth is to pay attention to the rotation of medication. Even the best pesticide varieties can not be used continuously for a long time. Different types of pesticides must be rotated. The fifth is to strictly follow the safety interval regulations. The safe interval between pesticides refers to the number of days from the last application to the harvest of the crop. In order to ensure that the residue of agricultural products does not exceed the standard, it must be harvested during the safety interval. 4, security protection The pesticide application personnel should be in good health, trained and have certain knowledge of plant protection. Old, infirm, children and pregnant, lactating women can not apply. Pay attention to the following matters when applying the medicine: The first is to check whether the application medicine is in good condition. Don't overfill the liquid, it is easy to leak, pollute the skin and clothing; the application site should have enough water, cleaning agent, first aid kit, repair Tools, etc. The second is to wear protective equipment. Such as gloves, masks, protective clothing, etc., to prevent pesticides from entering the eyes, touching the skin or inhaling the body. After the application is finished, take off the protective equipment and put it into a plastic bag, take it home and wash it 2-3 times immediately, and dry it for storage. The third is to pay attention to the safety of the application. Do not apply medicine when it rains, windy or hot weather; always apply in the upper wind position, do not apply the medicine against the wind; do not allow to eat, drink or smoke during the application; do not use the mouth to blow the blocked nozzle, apply toothpicks, grass sticks Or water to dredge. The fourth is to master the knowledge of poisoning first aid. If pesticides splash into the eyes or on the skin, rinse them with plenty of water in time; if symptoms such as headache, nausea, vomiting, etc., stop working immediately, take off your clothes, and bring the pesticide label to the nearest hospital. The fifth is to properly clean the application equipment. The application of the medicine should be washed after each use, and should not be washed in the river, creek or well to avoid polluting the water source. It is strictly forbidden to use as a package for pesticides, and it should not be littered. It should be stored in a centralized manner and properly disposed of. 5, safe storage First, minimize storage and storage time. Pesticide should be purchased according to actual demand to avoid backlog deterioration and safety hazards. The second is to store in a safe and suitable place. A small amount of residual pesticides should be stored in the original packaging, sealed and stored in a cool, dry, ventilated, dark place and locked place. It is strictly forbidden to use the empty beverage bottles to dispense the remaining pesticides. Special care should be taken not to be stored in places where children and animals can be exposed; do not be close to or mixed with food, food, or feed; do not store with seeds. Because the volatiles of pesticides are highly corrosive, if they are stored together, the germination rate of the seeds will be reduced. Third, the stored pesticide packaging should have a complete, firm and clear label. 6, the occurrence of phytotoxicity or human and animal poisoning accidents to do the following One must collect evidence. In order to avoid the human and other damages, the crops that cause phytotoxicity will bring certain difficulties to the next identification work. The victims should promptly report to the agricultural department, the industrial and commercial department or the quality supervision and management department, and ask them to pass the camera, photograph, etc. Means to record what happened. Second, we must keep evidence of the purchase of pesticides. Such as invoices, receipts. Third, we must preserve the remaining pesticides and pesticide packaging. Fourth, you must apply for identification. The relevant experts are requested to conduct technical appraisal of the phytotoxic accidents and form a written appraisal opinion. 7. Take remedial measures When the phytotoxicity or the control effect is not good, consult the local agricultural authority in time, and adopt measures such as supplemental fertilization or application of appropriate plant growth regulators, and strengthen farmland management to minimize losses. If it is serious, replant or replant other crops in time. For the production of human and animal poisoning, take necessary on-site first aid measures, and carry the pesticide label to the hospital for treatment. Drilling BOP And Control System During oil drilling, it is installed on the wellhead casing head to control high-pressure oil, gas, and water blowout devices. When the oil and gas pressure in the well is high, the blowout preventer can close the wellhead (shut down). When the heavy mud is pressed into the drill pipe, there is a four-way under the ram, which can replace the mud invaded by gas, increase the pressure of the liquid column in the well, and suppress the ejection of high-pressure oil and gas. Drilling BOP And Control System,Double ram blowout preventer, single ram blowout preventer, annular blowout preventer, blowout preventer control system Rugao Yaou Import & Export Trade Co., Ltd , https://www.ntyaoumachinery.com
Its types are divided into ordinary blowout preventer, universal blowout preventer and rotary blowout preventer. The universal blowout preventer can be activated in emergency situations to deal with any size of drilling tools and empty wells; the rotary blowout preventer can realize the blowout and drilling operation. In deep well drilling, in addition to two ordinary blowout preventers, universal blowout preventers and rotary blowout preventers are often added, so that three or four combinations are installed at the wellhead.
Annular Blow-out Preventer Annular Blow-out Preventer is usually equipped with a large gate with a ram-type blowout preventer. During operation, a sealed annular space is formed between the pipe string and the wellbore. When there is a pipe string in the well, it can also be separated The well is closed, but it will not work after several times of use, and long-term shut-in use is not allowed.