In order to prevent tomatoes from falling, fruit-setting hormones used in production are 2,4-d and anti-deceasing hormone. Farmers should pay special attention to the following points in their use: 1, the use of concentration: 2,4-d use concentration is generally 10ppm-20ppm, the use of anti-dropping agent concentration is generally 20ppm-40ppm, take the lower limit of the concentration of high-temperature, low-temperature concentration when the limit. Before the use of the flower test should be carried out first, picking up a few normal flowers, if 4-5 days after the ovary began to expand, that the concentration is appropriate; if within 3 days the ovary began to enlarge, indicating that the concentration is too high; if a week No ovary enlargement was observed, indicating that the concentration was too low. 2, the use of time: when the flowers to the top of the flower to see the yellow and not fully open or when the flowers are the best shape. It is easy to cause burnout prematurely, but it does not work until the flowers are lantern-shaped. In the sunny afternoon, it is better to have flowers in the morning, because the condensation of the plant surface will cause the concentration of the liquid to change and produce phytotoxicity. 3, the treatment site: with a brush to mix the light solution on the pedicel or pedicel, or dip the entire inflorescence in the solution, do not sprinkle the solution on the young leaves or growing points when processing, otherwise it will make The leaves become bar-shaped fern leaves that grow slowly, especially 2,4-d, and are most susceptible to phytotoxicity. 4, fertilizer and water supply: the use of hormones to prevent flowering flowers, promote fruit hypertrophy, but no fertilizer effect. Therefore, after using hormones, it is necessary to scientifically and reasonably top-dress and strengthen management. In addition, after the first fruit is used with fruit hormone, all other fruit should be used. Otherwise, the following fruits will absorb nutrients in a large amount, and the upper ear will not get the necessary nutrients. Disclaimer: Some articles in this website have been transferred from the Internet. If you are involved in third party legal rights, please inform this website. phone
4G Mini Camera Structural components
We are manufacturer of 4G Mini Camera in China, if you want to buy Shenzhen Mini Hidden Camera,1080P Wifi CCTV,Intelligent Dv please contact us.
Hidden 4G Mini Camera,Shenzhen Mini Hidden Camera,1080P Wifi CCTV camera,Intelligent Dv Camera Mini,Recorder Wireless Camera,Mini Spy Hidden Camera HD Shenzhen Fuvision Electronics Co., Ltd. , https://www.outdoorsolarcameras.com
The main structures and components of the camera can be listed from the working principle of the camera:
1. LENS
Lens structure, consisting of several lenses, including plastic lens or glass lens
2. Image sensor
It can be divided into two categories:
CCD (charge couple device): charge coupled device
CMOS (complementary metal oxide semiconductor): complementary metal oxide semiconductor
3. Digital signal processing chip (DSP)
There are many DSP manufacturers, such as VIMICRO 301P/L, SONIX 102/120/128, ST (Logitech LOGITECH's DSP provider), SUNPLUS (SUN+focuses on the development of CIF and VGA for single chip, but the image quality is average), PIXART (original phase), PAC207, SQ930C, etc.
4. Power supply
Two working voltages are required inside the camera: 3.3V and 2.5V. The latest process chip can use 1.8V.
Some cameras also use video transmission lines for synchronous power supply without external power lines.