One, the main reason
1. Hummer, Swedish fly damage. Peeling the outer leaves revealed that the base of the leaf had shrunk and had holes. The main performance is the distortion of the heart and leaves of the corn, the leaves are damaged, shrunk, and rows of holes appear on the leaves. There is a transparent film on the front of the leaf, some of the heart has mucus, and some of the heart has been broken.
2. Post-emergence herbicide injury. Damage to leaves of fleas and swarms was more or less detrimental, and undisturbed twisted leaves were caused by the use of nicosulfuron-containing post-emergent herbicides.
Second, control methods
1. Immediately use scissors to cut out the upper 1/4 blade, or manually dismantle the twisted heart, and fertilize the water, and spray 1000 times the plant growth regulator “Tianfengsu†(brassica lactone). Or efficient foliar fertilizer "double effect king", 1 bag 40 ml water 30 ~ 45 kg, or 6000 times love to receive more +0.2% ~ 0.3% potassium dihydrogen phosphate +1% urea solution + zinc, boron micro Fertilizer, 5 to 7 days 1, even spray 2 times.
2. If it is caused by insect pests, it is mainly necessary to prevent and control the thrips and Swedish flies in the summer when 5 to 6 leaves of the corn are grown. In the period of large corn flares, spraying and preventing the disease are also required. Formula is: 10% imidacloprid 1000 times or 5% acetamiprid 1500 times plus agricultural streptomycin 500 ~ 800 times liquid, plus some efficient foliar fertilizer, spray 5 ~ 7 days, once even spray 2 Times.
3. Due to herbicide harm caused by distortion of the heart, it should pay attention to the use of high-quality post-emergence corn herbicides, and pay attention to avoid high-temperature time medication, the appropriate period of time to prevent drug use caused by drug damage too late.
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What is Battery Mini Camera
Micro camera is a product of modern high-tech, also known as micro monitor. It has the characteristics of small size, powerful function and good concealment.
Micro cameras are widely used in aviation, commerce, media, enterprises, institutions, families and other industries. The appearance of micro cameras has brought convenience to people's lives, and at the same time, some phenomena related to corporate secrets and personal privacy have also emerged A9 Mini CameraWireless
Wireless equipment is used stably in domestic wireless environment. The micro wireless surveillance camera has the characteristics of high stability, high speed, long distance and multi-point testing. It can play a huge role in the fields of environment, energy, construction, transportation, medical treatment, industrial machine condition monitoring, etc., especially when the cabling is complex, the cabling cost is high, the long-distance and large-scale transmission of data and the mobility demand is high. Secret Video camera
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.
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Shenzhen Fuvision Electronics Co., Ltd. , https://www.outdoorsolarcameras.com