The urea ammonium nitrate solution is prepared from urea, ammonium nitrate and water. It combines three kinds of nitrogen sources and can exert various nitrogen source advantages. Production practice also proves that the effect of applying urea ammonium nitrate solution on planting potatoes is significantly better than that of single application of urea. To replace urea with urea ammonium nitrate solution, the fertilization structure should be adjusted first, and the base fertilizer should be applied as deep as possible to maintain the fertilizer effect for a long time. Generally, potato cultivation requires about 20 kg of urea, and the cost is about 30 yuan. After years of experiments and demonstrations, if the application of urea ammonium nitrate solution only needs about 5 kg, it can meet the growth demand of potatoes, and the cost is about 25 yuan, so the planting cost is increased. In the application of liquid fertilizer, we must pay attention to a small number of times. In the early stage of potato growth, we should increase the nitrogen fertilizer. After the bud, we should reduce the amount of nitrogen fertilizer, increase the supply of potassium fertilizer, boron fertilizer and zinc fertilizer, and achieve nutrient balance to avoid the spur of the upper part of the flower. The lower part of the "sweet potato". Appropriate topdressing: In early July, it was the time of pepper coloring. Just after the rain was completed within 10 days, foliar spray fertilizer could be applied. When spraying, a new high-fat film was added to effectively improve the efficiency of fertilizer efficiency. Stop the application of nitrogen fertilizer to prevent the latter season from growing. At the same time, the base fertilizer should be applied as early as September-October, which is conducive to improving the nutrient level of the tree. Field management: timely cultivating and weeding to promote the strong growth of the tree, pay attention to timely discharge of stagnant water after the rain, and guard against root rot. Plastic pruning: summer pruning is generally carried out 2 to 3 times a year, mainly removing dense branches, overlapping branches, pests and branches, etc., in order to improve the ventilation and light transmission conditions of the pepper tree, improve photosynthesis, make nutrients easy to accumulate, and promote the formation of the next year. More knots of pepper. The pruning mouth should be applied in time to apply the anti-corrosion film to protect the wound from healing and isolate the pathogen. Disclaimer: Some articles on this website are transferred from the Internet. If legal rights of third parties are involved, please inform this website. phone
How do WiFi Camera Work ?
Monitoring cameras can also be installed without a network, but some functions cannot be used, such as remote monitoring. In order to make it easier for you to understand the knowledge related to the surveillance camera, I will use popular language to popularize science for you.
1: Camera introduction
Camera is an intelligent device that can capture and record video and monitor the environment in real time. It can not only record video, but also detect moving objects, sound, smoke, and even recognize faces.
The advantages of the camera are very obvious. It can help people better monitor the safety of their homes or offices, and help protect the safety of family members or office staff. In addition, it can also provide real-time video monitoring, provide more security guarantees, and help people better grasp the current security situation.
Among them, "intelligent camera" is a new technology in recent years, which can monitor the environment in real time and conduct intelligent identification. The intelligent camera adopts high-definition camera technology, which can clearly capture the on-site images within the monitoring range and conduct real-time monitoring. It can also analyze the captured pictures to identify the designated person or object, thus realizing intelligent monitoring.
In addition, the smart camera can also support remote monitoring. You can remotely view the real-time image of the camera through your mobile phone or computer, allowing users to view the image of the camera anytime and anywhere, to better protect the security of your home or office.
At present, cameras have been widely used in the security industry to monitor buildings, parks, schools and other places to protect the safety of the people. It can also be used in commercial places to help businesses achieve intelligent management, improve business environment and improve service quality.
2: Working principle of camera
The working principle of the camera is to reflect the light to the sensor, convert the signal captured by the sensor into a digital signal, and finally send it to the computer to display the image. Then the camera can capture the static and dynamic images in the picture.
The sensor of the camera is the most important part. It can capture light and convert it into electrical signals. There are many types of sensors, the most common are CCD and CMOS sensors, which can be used to capture images.
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Pepper management needs attention in July
