Answer: Potash fertilizer can promote the expansion and ripening of grape fruit, improve the quality and storability, promote the thickening of the branches, and improve its ability to resist cold, drought, high temperature and pests. According to the soil fertility of the orchard, from 5 to 10 kg of potassium sulfate per acre of vineyard can be applied after the grapes are set to the fruit color change period. Potassium dihydrogen phosphate solution can also be sprayed on the leaves, once every 7 to 15 days, and sprayed for 2 to 3 times. It plays a significant role in promoting grape enlargement, early ripening, accelerating aging of branches and vines, and improving grape resistance. At the same time, it can also significantly inhibit the main diseases such as grape anthracnose and acne. Foliar spraying should be carried out before 9 am and after 5 pm, and it should not be sprayed at high temperature at noon. The leaves should be sprayed evenly on both sides, with 60 kg of fertilizer solution per acre as well. Disclaimer: Some articles of this website are transferred from the Internet. If the legal rights of third parties are involved, please inform this website for processing. phone
Video door-phone (also known as video door entry or video intercom) is a stand-alone intercom system used to manage calls made at the entrance to a building (residential complex, detached family home, workplace, etc.) with access controlled by audiovisual communication between the inside and outside. The main feature of video door entry is that it enables the person indoors to identify the visitor and, if (and only if) they wish, engage in conversation and/or open the door to allow access to the person calling.
The following product is the best-selling and most cost-effective video door phone in our factory,
It adopts a 4.3-inch high-definition screen and an aluminum alloy body, and is equipped with led light. It has night vision function and can clearly monitor the outdoor environment and make video calls with visitors even in the dark; physical button operation, classic design, no Easily leave fingerprints and keep your device clean and tidy. It can be used in multi-apartment systems.
The product parameters of 888QZJ4A are for your reference:
1. 4.3 inch 720 HD display TCP/IP Intercom system
2. Calling, intercom, unlocking, monitoring
3. High quality aluminium alloy frosted panel + physical buttons
4. Digital camera, stable and clear image shooting
5. Night vision and bright light compensation function
6. Full duplex voice intercom, comparable to ordinary telephone intercom
7. Elevator linkage function, connect the security system
8. LINUX system platform architecture, system simplification and stability
9. LPDDR3 1 GB memory, standard EMMC 8 GB storage expandable
10. RJ45 standard ethernet interface all-digital design
11. Low power consumption technology solution, saving energy and long life span
12. Dimension:400*140*51(mm)
13. Install method : Wall/flush install (390*130*46 mm)
14. Image/video advertising playback (advertising can be customized)
15. Door opening:IC/ID card/ password/call the Indoor Monitor or center management machine unlock
We are a factory specializing in the production, manufacture and research and development of video door phones for 11 years. We are located in the beautiful coastal city - Zhuhai. We have our own R&D team, we can provide professional products and services. We have different systems of video door phone for different customers and markets, for example, IP video door phone, 2-wire audio door phone, 4-wire video door phone and wireless doorbell, if you are interested, please feel free to contact me, I can send our catalog to your email.
Multi Video Door Phone,Video Door Phone Intercom System,Video Phone Doorbell,Video Door Calling System Zhuhai Mingke Electronics Technology Co., Ltd , https://www.zhmkdz-electronics.com