When the chestnut fruit turns brown, the fertilizer is applied before harvesting, and the quick-acting fertilizer is the main result. The result is that the tree above 50 kg, 1.5~2 kg of urea per plant, 0.5~1 kg of potassium chloride, applied after rain, or sputum After the decomposing human and animal manure water is 80-100 kg, it is drenched. After 5 to 10 days after fruit picking, the fertilizer is applied, mainly NPK compound fertilizer and high quality organic fertilizer. Each plant applies 2 to 3 kg of NPK fertilizer and 25~30 of manure and poultry manure. kg. Around the canopy drip line, digging deep and wide 25 to 30 cm ring groove for fertilization. If the weather is dry, apply water to each tree or fertilize 80-100 kilograms of decomposed human and animal manure after fertilization to promote fertilizer dissolution and conversion, supply root absorption and utilization, and improve fertilization effect. In addition, before and after fruit picking, foliar spray fertilizer should be applied, spraying 2~3 times 0.3% urea + 0.5% potassium dihydrogen phosphate + 0.2% borax mixture, and other nutrient solution can also be used. It is best to choose a cloudy or breezy cloudy day. It is advisable to spray before the 9:00 am or after 4 pm. In the event of heavy rain within 10 hours after spraying, it is necessary to re-spray and spray once every 7 to 10 days. The nutrients are supplemented from the foliage, which is beneficial to the fruit trees and the resulting mother branches for flower bud differentiation. Disclaimer: Some articles on this website are transferred from the Internet. If legal rights of third parties are involved, please inform this website. phone
4G Mini Camera Structural components
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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.
The chestnut fruiting period is long, the result is large, and it consumes a lot of nutrients. Before and after fruit ripening, the tree is in a state of starvation and semi-starvation, which is very weak. If it is not supplemented in time, it will seriously affect the flowering result in the coming year. Therefore, it is very important to apply chestnut pre-harvest fertilizer and post-harvest fertilizer, which can speed up the recovery of trees and promote tree growth, laying a good foundation for high yield and stable production in the second year. The specific practices are as follows:
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