1. Pay close attention to chemical weeding The temperature rises after cooling down, so the time for chemical weeding is relatively short. It is expected that there is an effective application period of 5-7 days. The temperature will gradually rise on February 20, wheat will grow rapidly, and the weed age will continue to increase. . So at this time we have to consider the proper selection of the pesticide and the rationality of the compounding of the pesticide, because if the effect of one control is not good and the wheat quickly enters the jointing stage, it is recommended to use herbicides, so there is almost no chance of secondary supplementation! Be sure to use a reasonable mix of foot medicine for one-time prevention! Don't choose a single herbicide to control, generally choose 2-3 kinds of herbicides and use them well! Generally, the application in early spring is 15% -20% higher than the chemical weed control before winter; the early spring weeds are strong and the density is relatively large, and the control agents must be increased, but they cannot be increased blindly! Non-resistant grass weeds Rice stubble wheat area: see Mai Niang, Japanese Mai Mai, Yarrow grass Recommended formula: 3% methyldisulfuron 25-30ml + 75% isoprolong 50-60 g / mu or 3.6% methyl. Iodosulfuron 20 g + 75% isoprolong 50-60 g / mu; can also be mixed with azoxystrobin and acetochlor for yarrow! Upland crop rotation area: Mainly wild oats, and some areas of wheat occurrence; 15% trimethoate 30-40ml + 3% methyldisulfuron 10-15ml / mu is recommended Resistant grass weed For wheat field resistant weeds, we mainly look at the wheat maiden in Japan in the stubble wheat region; it is recommended to use 25% cicoflavone after the spring. Isoprone 250 g-280 g / mu! If the grass is old and dense, you need to use a compound such as azoxystrobin or trimethoprim! Non-resistant broadleaf weed For broad-leaved weeds, the occurrence of species is generally less difficult to control: dry and upland crops are mainly pig sedges, large nest vegetables and water and upland crops, which can be used for stalks. / Mu, can basically be prevented! Resistant broadleaf weed With the increasing resistance of weeds, weed control of some broad-leaved weeds has become more difficult: field-based plots consisting of mother-in-law, asparagus, cattleweed, artemisia, and rapeseed; it is generally recommended to use Methyltetrachloro, oxadiazon and other agents can be used alone for prevention and control, and 22% bisoxadiazon can also be used. 15-20ml / mu of flufenoxyacetic acid. It is not recommended to plant broad-leaved crops in the next crop! Can also be used: 70.5% dimethyl. Oxamethoxone + 20% clofloxyacetic acid 20-30ml / mu, the broadleaf weeds must be controlled separately, not mixed! 2. Reasonable control Because the seeding volume is too large, there is a long and long seedling! For some sowing early, too many basic seedlings and large populations, then for strong long-term seedlings, then from the field performance: leaf drooping, crowded growth, closed field, excessive tillering. Fertilizer and water regulation Control fertilizer water, nitrogen fertilizer backward, forward control and promote later, do not apply the greening joint fertilizer again, appropriate control has always been, if combined with disease and insect control, choose a drug containing triazoles, is also conducive to controlling the growth of seedlings! Chemical regulation Chemical control, the foliar surface is selected to contain Paclobutrazol, Uniconazole and other prosthetic agents! Mainly shorten wheat base internodes and prevent lodging (rationalized control should be at the stage of wheat rise. Mastering chemical control 7-10 days before jointing can effectively shorten the length of the first and second internodes at the base. Control effect is not good.) 3. The drug field has been applied in the early stage. In general: it is poisonous! Then we have been emphasizing that the precautions for chemical weeding of wheat in this special case this year must be borne in mind. However, from the current visits in the stubble wheat area, farmers ’friends’ chemical weeding of wheat is relatively blind, without paying attention to the weather. Although the temperature has risen in the short term, the temperature difference is relatively large, and the frost in the morning is relatively thick, causing wheat to be harmed! So how to remedy the harm? Field performance From the field where the damage occurred, it is basically one piece, one piece, and one gardenia. The new wheat leaves are twisted and deformed, the hooks cannot be stretched, the heart is peeled, the field turns yellow, and the old leaves have green leaves! Wheat seedlings appear uneven! Damaged from the root system, secondary roots reduced! It is difficult to head wheat in the late growth stage and the ears are relatively small, which eventually leads to serious pupae! solution The first is to repair the damaged tissues by spraying, adding nutritional transmission in the plant, and reducing the damage caused by pesticides! (Using brassinolide + potassium dihydrogen phosphate, amino acid foliar fertilizer + potassium dihydrogen phosphate, biostimulant + potassium dihydrogen phosphate; Spike full 15-20ml + 20-30 grams of phosphorus and potassium energy, Bi Hu + potassium dihydrogen phosphate. The second is the application of fast-acting nitrogen fertilizer, which can better promote root system and repair and increase secondary roots (Antaisheng + urea). 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What is 4G PTZ WiFi Camera
Camera, also known as computer camera, computer eye and electronic eye, is a video input device, which is widely used in video conference, telemedicine and real-time monitoring. Ordinary people can also talk and communicate with each other through the camera on the network with video and voice. In addition, people can also use it for various popular digital images, video and audio processing.
The 4G intelligent camera, also known as 4G camera and IPC, is mainly used for security video surveillance. Its feature is that the 4G communication module is built into the universal surveillance camera, allowing the camera to be directly connected to the network through the base stations of the three operators, breaking the limitations of the original deployment of network cables or WIFI connection, so as to achieve the purpose of remote monitoring.
Professional 4G PTZ WiFi Camera manufacturer is located in China, including Full Color Night Vision Two Camera,Smart Wifi Zoom Cctv ,360 Degree Ip Wireless Camera, etc. 4G PTZ WiFi Camera,Full Color Night Vision Two Camera,Smart Wifi Zoom Cctv ,360 Degree Ip Wireless Camera,PTZ Outdoor Camera Shenzhen Fuvision Electronics Co., Ltd. , https://www.szsolarcamera.com
At present, the functions of smart cameras mainly include video monitoring, voice dialogue, security alarm and video review.
Video surveillance
Video surveillance is the core and basic function. The current intelligence is that the mainstream resolution of cameras is 1080P HD, which requires a high level of network. Most home cameras transmit data through WiFi, which is convenient to move. Some stores also install such cameras, which are mainly used to monitor the main points such as the cash register. This kind of camera that does not need to move can use the network cable, and the signal will be more stable.
Voice conversation
Most cameras on the market are equipped with the function of voice conversation. Users can directly have voice conversations with their families through the APP. Of course, although many devices on the market support this function, noise elimination, uneven echo and other situations still occur frequently and need to be improved continuously.
Security alarm
The security alarm function is mainly used to record vibration, special noise and other vibrations, and alarm through APP.
Video review
At present, smart cameras on the market all provide the function of video review, but most of them only provide the function of alarm review, that is, the video recorded after the alarm occurs can be reviewed, and the rest of the time can not be viewed, and it is a paid function. Few manufacturers can provide uninterrupted video retrieval function. The reason is simple: the cost of video storage server is too high. Video belongs to large flow files. If you want to achieve uninterrupted recording, storage and review, the cost will be many times or even dozens of times higher.
4G intelligent camera
The deployment of wired network is troublesome or the coverage of WIFI is limited. For example, security monitoring of mature commercial offices or new indoor and outdoor blank areas in residential areas, video monitoring is required for outdoor construction sites, and 4G intelligent cameras are required for the deployment of wired network is troublesome and scattered.