The top dressing is also called foliar spray fertilizer, that is, the chemical fertilizer is formulated into an appropriate concentration, sprayed onto the leaves and branches with a sprayer, and directly absorbed and utilized through the lenticels, pores, and cortex, eliminating the need for root absorption and transportation. the process of.
Save labor and fertilizer, quick results
After a few hours of urea spraying, it can be absorbed, and it can absorb 80% in 24 hours. After 2~3 days, the leaves turn green. In production, the “bright leaf fertilizer†effect is excellent in May after falling flowers.
Overcome nutrient competition
Spray fertilizer can overcome the nutrient competition of the central distribution caused by the various growth peaks. The medium and short branch leaves can be directly absorbed and utilized to form more flower buds, especially for young and old trees. Nutrient accumulation, flower growth and more obvious production, in the lack of trace elements in the pear orchard, the effect of spraying fertilizer is the most appropriate.
Improve fertilizer utilization
Spraying fertilizer can prevent the loss of fertilizer due to soil fertilization by soil, or the disturbance of soil physical and chemical properties, which can greatly improve fertilizer utilization.
Increase local nutrient accumulation
Spraying fertilizer combined with summer flowering measures such as pulling branches and ring stripping increases the local nutrient accumulation of treated branches, and promotes flower yield increase. In the pear orchard lacking trace elements, the effect of spraying fertilizer is the most appropriate.
Foliar spray fertilizer is 0.3% urea, which can be sprayed from spring to autumn, and urea can be added in combination with spraying. Followed by spraying 2~3 times of potassium dihydrogen phosphate 0.3%~0.5% after physiological fruit drop to harvesting period. In order to improve the effect, it is best to spray the fertilizer early and late in the windless sunny day to avoid spraying at noon to prevent the high temperature from causing phytotoxicity. Due to the differences in variety and geographical and climatic conditions, pay attention to the first time after spraying, and then spray it on a large area.
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The Network CCTV Wireless Security Camera
Compared with wired cameras, wireless security cameras are less invasive to your home, so they are easier and faster to set up. No need to drill through walls or ceilings. Wireless cameras are also more flexible than wired systems because they are not as constrained as wired systems.
The biggest disadvantage of a wireless Camera System is that it is completely dependent on the strength of your Wi-Fi connection. Any interruption or weak signal can mean that you may lose connection to the system, resulting in the loss of the film, which can be critical
Best wireless outdoor security camera overall Ring Floodlight Cam Wired Plus.
Best wireless outdoor security camera: Fuvision 4G PTZ WiFi Camera
Best outdoor security camera : 4g Outdoor Wireless Camera
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.
The internal circuit of the camera will convert the signal captured by the sensor into a digital signal and send it to the computer. The computer uses these signals to display images, or it can save images to the hard disk drive.
If the camera is not connected to the network, it will not be able to achieve real-time monitoring, but the camera will still work and save the pictures and videos taken. If we need to view, we can only remove the memory for viewing.
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. Users can view the image of the camera anytime, anywhere, to better protect the security of your home or office.
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