Cowpea must be temperature-controlled for the first three days after sowing to emergence, which will help rapid emergence and ensure the robustness of the seedlings. The temperature in winter is low. After the mulch is covered, the water evaporates slowly. From seeding to emergence, no watering management is needed. So, how should cowpea be managed after emergence?
Pre-emergence insulation
Cowpea is most sensitive to temperature response before and after emergence, but after the emergence, the nutritional consumption of the seeds is exhausted, and if the seedlings continue to grow, organic nutrients produced by photosynthesis are needed.
The period from the winter solstice to the great cold and solar terms is also the time when the temperature is the lowest and the light time is the shortest. Under these conditions, after the cowpea emerges, it must first ensure sufficient light to cultivate strong seedlings and improve seedling quality.
From the unearth of seedlings, vegetable farmers should adjust management strategies in a timely manner according to weather conditions. In the case of low temperature and low light in winter, first of all, ensure the light:
One is to pay attention to the high light transmittance of the multilayer cover film. In the seedling sheds of many vegetable farmers, the outer film should be provided with a dust-removing cloth strip to remove the film dust at any time. If there is a difficult place to clean, the vegetable farmers should wash or scrub with water to ensure the outer film light transmittance. The film covered by the inner layer, Master Zhang specially reminded that you must choose a new film, not the old film retained in previous years. The old film has a lot of dust and the light transmittance is greatly affected. It can be used in other seasons, but it cannot be used in late winter.
The second is to pay attention to artificial light. The area of ​​the seedbed is limited, artificial light supplementation is completely achievable, and the cost is not high. It is best to choose a special vegetable fill light for artificial fill light, which has high illumination efficiency and less waste, which is the best choice. If there is no special supplementary light, it can also be replaced by ordinary incandescent lamp. It also has the function of warming up while supplementing the light. However, the commonly used lighting fluorescent lamps cannot be used, because their design mainly considers the needs of the human eye, but it does not meet the needs of vegetable growth. In the haze weather similar to the previous few days, vegetable farmers can turn on the lights for 5-6 hours during the day to avoid weak cowpea seedlings and poor root system development, laying a foundation for subsequent cultivation of strong trees, high yield and high quality.
Properly fertilize and promote seedlings
After emergence, as the root system expands, the seedlings begin to absorb nutrients from the substrate in large quantities. However, at present, vegetable nursery seedlings are mostly used in 50-well plug trays. The number of filled substrates is very small and the nutrients are insufficient. After the cotyledons are flattened, the nutrient supply in the substrate begins to be insufficient. Strong growth.
After the seedlings are ready, the vegetable farmer begins to sprinkle water for the first time. At this time, 2000 times the suspension calcium of Ishihara Taurus and 1000 times the solution of Bacillus subtilis can be added to the water. Prominently, biological agents such as Bacillus subtilis can coexist with the root system, promote root growth, inhibit bacterial proliferation, and promote root disease prevention. During the second watering, you can choose high-quality water-soluble fertilizers, supplement nitrogen, phosphorus, potassium, and trace elements to promote seedling growth.
Disclaimer: Some articles on this website are transferred from the Internet. If third party legal rights are involved, please inform this website to deal with them. phone
What is 4G Solar Camera
Professional 4G Solar Camera manufacturer is located in China, including Hd 4G Solar Powered Cctv Camera,4G Solar Powered Cctv Camera,Outdoor 4G Solar Powered Cctv Camera, etc.
What are the advantages and disadvantages of outdoor solar cameras
Wired cameras and wireless cameras have their own advantages and disadvantages, mainly depending on the purpose for which you install the camera.1. If it is to be fixed outdoors with convenient wiring, it is better to install wired cameras;
2. If you are at home or need to change the monitoring location at any time, 4G wireless monitoring will be more convenient;
3. With the development of solar monitoring technology, outdoor installation of solar monitoring will be better.
Advantages and disadvantages of wired cameras and wireless cameras
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
4G Solar Camera HD CCTV,Hd 4G Solar Powered Cctv Camera,4G Solar Powered Cctv Camera,Outdoor 4G Solar Powered Cctv Camera
Shenzhen Fuvision Electronics Co., Ltd. , https://www.outdoorsolarcameras.com