Zibo, Shandong, a vegetable consultation: the greenhouse just planted kidney beans, seedling needs the temperature? If you can not apply spray hormone control?
A: The cultivation of cowpeas in the middle of winter is mainly to avoid the nighttime temperature being too low. The optimum temperature of the bean seedlings during the day is 23-25°C, and the optimum temperature at night is 12-13°C. However, it is difficult to meet the requirements of the greenhouse temperature in winter, and it can be ensured by covering the two membranes and straw curtains. The minimum temperature at night cannot be lower than 10°C. In addition, the cowpea seedling stage is not recommended to use hormone control, can be controlled by temperature and watering can be, if the prosperous long, you can use paclobutrazol, chlormequat, etc., pay attention to half the dose.
Mini Camera Introduce
1. Wired camera
The advantages are that the technology is mature, the industrial Network Camera technology is directly transplanted, the signal interference is not feared, and it is stable and reliable;
The disadvantage is that the installation is complex and requires wiring. It can only be accessed through a computer. The scope of use is limited and it is not suitable for home use.
2. Wireless camera
The advantages are that there is no need for wiring, the installation and increase of cameras are relatively convenient, and the cost of Internet access is low;
The disadvantage is that it will be interfered by the signal, which may affect the definition and transmission speed of the picture.
Extended data
Now the technology of solar energy monitoring is mature, and solar energy can be used to solve the problem of power supply. Outdoor monitoring can also choose more advanced solar energy monitoring. Remote monitoring without power and network is no longer an imagination.
1. Simple installation: install by yourself without inviting construction personnel;
2. Adjustable angle: 360 degree rotation, no dead angle monitoring;
3. No electricity connection: solar power generation and built-in lithium battery power supply;
4. No wiring: no wall chiseling or decoration damage.
matters needing attention
The configuration of the solar power supply system requires the customer to provide the total power consumption of each load equipment,
It is necessary to know the local lighting conditions and the duration of continuous operation of the equipment
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Shenzhen Fuvision Electronics Co., Ltd. , https://www.outdoorsolarcameras.com