How to manage wheat filling period
1. Watering slurry, chasing slurry The grain filling period is the final formation period of wheat grain yield and has an important impact on the high yield of wheat. During this time, wheat has a large demand for water, and it should be combined with irrigation to apply 3 to 5 kg of urea per acre. If there is a rainfall with a precipitation of more than 20 mm during the grain filling period, the slurry may not be poured. However, if the precipitation during the filling period is not enough, you can consider pouring the slurry. For plots with large populations, excessive growth, and tendency to fall, there is no need to pour water or topdress. 2. Spray surface fertilizer, anti-dry hot air In the late growth stage of wheat, the absorption capacity of the root system is weakened. Topdressing of wheat leaves can prolong the leaf function period of wheat, improve photosynthesis, prevent disease, resist lodging, and reduce the damage of dry hot wind. In order to improve the 1000-grain weight of wheat and optimize the quality of wheat, it can be sprayed every 7 days: 0.4% potassium dihydrogen phosphate and 2% to 3% urea mixture, and other ecologically active fertilizer can also be added in the foliage. Spray. 3. Do a good job in preventing pests and diseases Wheat filling period is a key period to increase the 1000-grain weight of wheat, but this period is prone to a variety of pests and diseases. Main control: wheat bran and leaf blight, scab, rust, wheat powdery mildew. The first half of May is the key period for disease prevention and treatment of insects. Xiaobian provides recipes for farmers to control pests and diseases such as aphids, powdery mildew, sputum, scab, rust, leaf blight, dry hot wind: (1) 70% imidacloprid wettable powder 3 to 5 grams, plus 45 percent of benzyl promethamine 25 grams, plus 98 percent of potassium dihydrogen phosphate 100 grams, plus 0.01% 8 ml of lactone lactone, plus 80 ml of beta-cypermethrin EC 80 ml. (2) 50% nitenpyram wettable powder 8 to 10 grams, plus 25 percent of benpropidazole emulsifiable concentrate 30 ml, plus 98 percent of potassium dihydrogen phosphate 100 grams, plus one hundred Divide 0.0 of brassinolide 8 ml, plus 4.5 ml of beta-cypermethrin EC 80 ml. (3) Percent of bifenthrin aqueous emulsion 80 ml, plus 98 g of 98% potassium dihydrogen phosphate plus 10 ml of cyanobacterial tebuconazole suspending agent 10 ml. Disclaimer: Some articles on this website are transferred from the Internet. If legal rights of third parties are involved, please inform this website. phone
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.
Some cameras also use video transmission lines for synchronous power supply without external power lines.
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Wireless
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.