For more than ten consecutive years, the agricultural harvest has been greatly contributed by the role of pesticides. Widespread use of pesticides, fungicides, herbicides, and regulators has ensured a bumper harvest in agriculture and brought with it a large number of new environmental pollution problems and new problems. The more important is the continuous use of pesticides, especially herbicides used in successive years, has caused serious phytotoxicity, corn, rice, soybean seedlings are small, weak seedlings, later affecting growth, pesticide residues also affect human health to varying degrees. In recent years, a large number of drug disputes have been discovered in rural areas, and farmers have suffered large losses. Therefore, this issue has reached the moment of non-governance.
First, the brief description of the symptoms of injury: General herbicides, insecticides, biological hormones within a few hours after the emergence of acute dominant phytotoxicity; a small number of fungicides and herbicides, mostly chronic insidious phytotoxicity; Some symptoms have a longer duration of onset, and most of the symptoms are similar to the lack of elemental symptoms in crops. In particular, the seedling period is relatively obvious and eventually results in a weak crop, low yield and poor quality. These problems are more common in the province. 1 The growth of crops lags behind, and tillering, jointing, flowering, pollination, and maturity are all greatly affected. 2 The color changes greatly, the leaves yellow and green, white, brown, stains, plants wither; 3 seedlings dwarf, weak, and atrophy; 4 abnormal morphology, stems and leaves twisted, leaves variability. Flower buds, fruits, root deformities; 5 contact with the liquid at the formation of spots and texture changes, affecting photosynthesis. Ultimately it will affect the output and quality. And often the second year continues to appear harm phenomenon.
Second, the reasons for: 1. The quality of the pesticide itself is poor, the formula is irrational, the storage period reacts, the formation of harmful substances. 2. When pesticides are used, the use amount is increased, more than 10%, and prone to dose poisoning. 3. The herbicide is valid for more than 9 months, the herbicide residue is increased, and the individual varieties are valid for 1 to 3 years. 4. Herbicides drift. Generally herbicides drift about 300 meters under windless conditions, and can reach about 5 kilometers under windy conditions, especially soybeans are obviously lack of drug resistance. 5.Extremely high temperatures, temperatures above 28°C, cold damage, low temperature, early spring soil drought, plus more than four winds, many sensitive crops, such as fruit buds, fruits, beans, etc.
Third, the specific measures: 1. For any pesticide should be 3 to 5 days in advance, using a backpack sprayer according to drug description for small area test. After being observed for 1 to 2 days, large-scale machinery was put into use after no problems were found. 2 must be symptomatic purchase of drugs. It is necessary to purchase the big brand pesticides produced by the state’s official manufacturers. 3. At present, the quality standards of pesticides generally do not have much problem, so do not arbitrarily increase the amount of use. 4. According to the characteristics of diseases, insects, and weeds, medication should be used at the best time. Principles must be based on prevention, early treatment, treatment, and treatment. 5. Improve the operating level. The main control of the amount of drugs, water, pressure, droplets, spray, secondary dilution, to be carefully observed and found that the problem is resolved immediately. 6. After the drug is to be controlled, fertilizer, and water management. 7. Minimize mixing and carefully implement formula medications. 8. Pay attention to the effect of light, temperature, precipitation, soil properties, and environmental factors on the efficacy of the drug. 9. In areas where phytotoxicity may occur, antidote such as "Pioneer Pioneer" will be sprayed promptly after seedlings to achieve the prevention of phytotoxicity.
PTZ: In the security monitoring application, it is the abbreviation of Pan/Tilt/Zoom, representing the pan tilt omnidirectional (up and down, left and right) movement, lens zoom and zoom control.
Fuvision's autonomous automatic PTZ intelligent tracking enables the camera to automatically PTZ drive its own PTZ and zoom lens, and automatically controls the PTZ Camera to rotate the PTZ in all directions and zoom the lens. It also conducts visual oriented automatic tracking for the locked moving target to ensure that the tracking target continues to appear in the center of the lens with a close-up image, so that the guards can see the information more clearly, It can also be used for obtaining evidence afterwards. The automatic PTZ tracking module makes up for the narrow field of vision of fixed camera monitoring, which is an essential function of a perfect security monitoring system.
The intelligent vision PTZ automatic tracking and monitoring system has the target analysis function, and is equipped with a high-resolution camera, a large magnification optical zoom lens and a high speed PTZ, which can automatically capture suspicious targets quickly and accurately. By setting the preset position intelligent vision PTZ automatic tracking monitoring system, the preset position scanning, automatic cruise and other functions can be realized, and many special requirements of intelligent monitoring can also be realized. In addition, the intelligent vision PTZ automatic tracking and monitoring system also has the advantages of beautiful appearance and strong concealment, so it is very suitable for public security intelligent monitoring applications in airports, squares, rail transit, villas, government administrative units, military regions, museums and other types of places.
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