After the citrus is harvested, it enters the dormant period, and 40%~60% of the nutrients in the tree are stored in the leaves. Therefore, winter leaf protection is not only beneficial to enhance the cold resistance of citrus trees, promote flower bud differentiation, but also facilitate the spring growth and flowering results of citrus. Spraying protective leaf spray guarding leaves is mainly to control pests and diseases, and the focus is on controlling red spiders. Red spider is one of the main causes of abnormal defoliation of citrus. It can be sprayed with 73% gram of 1000-1500 times liquid, 50% tork powder 1500~2000 times liquid or 0.7~0.8 wave of sulphur sulphur mixture. It should be sprayed before 10 am and after 3 pm. An orange orchard with citrus stalks can be mixed with a low concentration oil emulsion and acesulfame 1500-2000 times. Fertilization of the citrus fruit after fertilization is mainly to restore the tree potential, increase the accumulation of nutrients in the tree, promote flower bud differentiation and improve the cold resistance of the tree in winter. If not fertilized in time, some orange orchards may have curling and wilting. Therefore, after citrus picking fruit and spraying fertilizer, the color of the leaves can be kept green and the tree can recover quickly. The fertilization method is to spray 0.5% urea + 0.2% ~ 0.3% potassium dihydrogen phosphate once every 10~15 days, and spray 3~4 times. The amount of spray fertilizer should be made by the tree, so that the fertilizer does not drop after spraying. Spraying plant growth regulator leaf spray on 500~1000 mg/kg paclobutrazol or 200 mg/kg auxin 802 can enhance chlorophyll synthesis, improve photosynthesis and prevent leaf senescence. Trimming the leaves to improve the light conditions of the trees and promote leaf photosynthesis. When pruning, according to the principle of leaving the dense, strong and weak, cut off the dense cross branches, dead branches, diseased branches and broom branches, and the decaying branches around the upper part of the canopy. Drought and stain-proof leaves and drought-deficient water easily lead to dry roots, decreased absorption function, enhanced leaf transpiration, and caused defoliation. Therefore, in case of drought after winter, it is necessary to fight drought and water in time. The method of furrow irrigation or hole irrigation can be adopted, and the method of protecting the soil by the tree tray and combining the spraying of the leaf surface fertilizer can also be adopted. In case of rain and rain, soil water, and roots lacking oxygen, drainage should be carried out in time to prevent a large number of abnormal leaves. Disclaimer: Some articles on this website are transferred from the Internet. If legal rights of third parties are involved, please inform this website. phone
Small Hidden Cam
Mobile video monitoring and alarm system is a set of intelligent system for security to enter the civilian field. This system integrates mobile phone monitoring and mobile phone anti-theft alarm systems. When illegal people break into the restricted area, the system host will immediately call and send SMS or email to the designated users! Users can view the image of the monitoring area with their mobile phones or computers as soon as they receive a phone message.
It eliminates the worries of false alarm of traditional monitoring system and traditional alarm system! The system integrates wireless door magnetic, wireless smoke detector and other wireless alarm accessory information, effectively improving the civilian characteristics of the monitoring system. Shenzhen Kate Technology Co., Ltd. is specialized in mobile video monitoring products. The supporting mobile phone software of this product, namely Kate Guardian, can be linked to mobile text messages or phone calls with video monitoring and home alarm. This product is also a smart home security monitoring anti-theft system: the system is a network but can be completed independently without a computer! The local memory can record video for 24 hours, and you can view and operate all the monitoring images in your home through your Internet phone or computer in other places.
The system has its own wireless alarm module, which can be matched with wireless door magnets, probes, smoke detectors and other wireless alarm trigger devices. When someone breaks into the monitoring defense area, the system will automatically call, send SMS and email to the designated four mobile phone users, and will also generate audible and visual sirens locally. After receiving the alarm call and information, the remote user can view the monitoring picture through the Internet mobile phone or computer, control the camera rotation angle and focus, and deploy and remove the alarm system through the mobile phone, while starting the mobile phone video recording function and handling the alarm. Application prospect Home monitoring
As the video monitoring system plays an important role in protecting security and preventing crime, the growth of personal users' demand for family security will certainly drive the development of residential monitoring system. The demand for video surveillance from ordinary consumer households is becoming an emerging market for video surveillance applications, and is expected to show significant growth in the next few years.
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After work or when going out, you can open your computer or mobile phone at any time to view the real-time image of your home, communicate with your family face to face, learn about your family, and take care of your family remotely; When the thief steals while no one is at home, the automatic signal can be sent to the community monitoring center in time, and the residents can be notified by mobile short message, email or telephone. All this can be easily achieved through the home video monitoring system. As early as 2004, the total output value of China's video surveillance industry application market had reached 15.1 billion yuan, an increase of nearly 23% compared with 12.3 billion yuan in 2003, and growing at an annual rate of about 20%. According to the survey of the analysis institution, with the accelerating pace of life, the demand for family users' sense of security is gradually increasing, and the requirements for family monitoring and security are also increasingly mature.
Market demand editing
Winter citrus leaves have good effect