Cabbage is a common vegetable, many people will grow some at home, autumn is a good season for cabbage cultivation, especially in the north, now many people are busy planting Chinese cabbage. For the cultivation of Chinese cabbage, if you want high yield and high quality, you must do a good job in seedling management. Let's take a look at the main points of Chinese cabbage seedling management.
Chinese Cabbage Seedling
1. Management of seedlings
The most important planting method for planting Chinese cabbage in autumn is direct seeding, so the Chinese cabbage should be thinned after emergence. The Chinese cabbage seedlings can be divided into two. The first seedling is after the Chinese cabbage seedlings have grown two true leaves. The cabbage seedlings that are too densely grown and weaker are pulled out. The second interplanting is carried out after the Chinese cabbage has grown 3-4 true leaves. This time, the interplanting of Chinese cabbage should be fixed. Generally, the interplanting of Chinese cabbage is between 25 and 30 cm. Chinese cabbage seedlings with diseases and insect pests.
2. Water and fertilizer management
Chinese cabbage is a water-loving crop, but it is not resistant to waterlogging. In order to prevent Chinese cabbage from experiencing long-term rainfall during the growing season, it is best to plant ridges when planting Chinese cabbage. Ridge planting is not only conducive to field ventilation, but also It is helpful to drain the accumulated water in the field in time after the rain.
After the Chinese cabbage is planted, it is necessary to supplement the water required for the growth of Chinese cabbage in time. Although it has already passed the summer holiday, the weather is still very hot at noon, and the Chinese cabbage has poor heat resistance, so it is necessary to reasonably irrigate to reduce the ground temperature and maintain the soil. Wet state. In addition to reasonable irrigation, timely top dressing should be applied. Before planting Chinese cabbage, a full-bottom fertilizer should be applied. In addition to the bottom fertilizer, timely top-dressing during the seedling stage, rosette stage, and heading stage of Chinese cabbage. Sufficient nutrients can effectively improve the cabbage Yield.
Chinese Cabbage Seedling Management
3. Disease control
Common diseases and insect pests of Chinese cabbage include underground pests, aphids, drought blight, cataplexy disease, downy mildew, etc. The occurrence of pests and diseases has seriously affected the growth of Chinese cabbage and will also reduce the yield of Chinese cabbage. The prevention and treatment of Chinese cabbage diseases and insect pests are mainly based on prevention. The combination of prevention and control, in the high incidence period of Chinese cabbage diseases and insect pests, spray pesticides in time for prevention and control. When the Chinese cabbage diseases occur, spray fungicides and insecticides in time to prevent the spread of bacteria and pests.
4. Bundle management
Many people think that bundling Chinese cabbage is very troublesome when planting Chinese cabbage, but the rural elderly think that bundling Chinese cabbage is an indispensable process. In fact, this process is very important if Chinese cabbage is to be produced in high yields. The bundling of Chinese cabbage is generally carried out 15 days before harvest. You can use sweet potato vines or straw to gently lift the leaves outside the Chinese cabbage, and bind the straw or sweet potato vines to two thirds of the Chinese cabbage. , Don't be too tight, it's easy for the Chinese cabbage to grow long. It should be noted that water can not be watered for three or four days after the Chinese cabbage is bundled with money. After binding, water can be poured to promote the growth of Chinese cabbage.
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
The performance of the Baby Monitor Security Camera
The performance of the baby monitor is reflected by its built-in parameters and function combination. The following shows some properties that a high-quality and applicable baby monitor should have. The requirements for baby monitors in this part apply to all audio/video, digital/analog home baby monitors and wireless baby monitors, and are not changed due to the combination mode of the monitoring end and the control end.
The size shall be as small as possible: the small baby monitor (monitoring end and control end) is more convenient to install and carry in the family.Low power display: the baby monitor, especially the monitoring terminal, must work continuously for a long time. Once the product is low in power, it cannot remind parents to charge it in time. When the power continues to be consumed until it is exhausted, the control terminal will be unable to continue to receive any signal.
Voice trigger prompt: Voice trigger means that once the monitoring terminal detects the noise caused by the abnormal behavior of infants or children, it will be displayed at the control terminal through the noise prompt lamp.
The transmission signal frequency can be adjusted: the monitoring end of the baby monitor provides audio and video digital signals to the control end by transmitting wireless signals. If the transmission frequency of the monitoring end is not selected properly, it will produce electromagnetic interference with other household appliances, digital equipment, etc., which will affect the normal use of the product. Therefore, it is necessary to select a baby monitor that allows users to adjust the frequency of the transmitted signal at the monitoring end.
Adjustable volume: a friendly baby monitor will provide a volume selection knob or button at the control end. When parents are in an environment with loud background sound, they can hear the activity sound of babies and children by turning up the volume; When it is late at night or in a quiet environment, the low volume will not affect the normal rest of the people around you when you are answering normally.
VOX function: VOX is the abbreviation of sound activation start. The monitor with VOX function is in standby mode under normal conditions, and the screen and horn stop working, thus reducing the energy consumption of the product; Once it is detected that the monitored object has an abnormal sound exceeding the set standard, it will immediately flash its alarm lamp at the control terminal or directly light up the screen, and simultaneously play the audio and video information sent by the monitoring terminal.
Digital signals and analog signals: baby monitors using digital signals, such as Baohushen baby monitors, will have better transmission efficiency and provide users with clearer sound and picture quality; Moreover, digital signals can be encrypted to prevent being intercepted and interpreted by other receivers, effectively protecting users' family privacy; The electromagnetic signal interference of digital signal will be lower than that of analog signal, so as not to affect the normal work of other household appliances and equipment.
Monitoring end extension: The baby monitor with a friendly user experience should allow users to use one control end to manage the activities of several monitoring ends at the same time, especially in some families with multiple children. This good scalability not only reduces the trouble of carrying multiple control ends at the same time, but also reduces the objective additional expenses for these families.
Temperature display: some products will have the function of realizing the current indoor temperature, and even can set a critical value. Once the room temperature exceeds or falls below the critical value, an alarm signal will be sent. This is a very considerate function for temperature sensitive newborn children or sick children.
Intercom function: The high-end baby monitor allows parents to have a direct conversation with the baby (child) at one end of the monitoring end through the control end, so that children who are alone can provide psychological comfort. If children have any temporary needs or words, they can be known without bothering the guardian to run to the child.
Signal range: theoretically, the signal sent by the monitoring terminal can be received by the remote control terminal, which is more convenient for users to use the baby monitor flexibly. Now more and more families live in large family rooms, even multi-storey villas, and the baby monitor with strong signal receiving ability provides these families with a more convenient way of use. Parents no longer need to set the room beside the children in order to see and hear their children's every move. They can even take the control terminal to go out for a short walk!
Power supply mode: The baby monitor with built-in battery can automatically switch to the battery power supply mode when the external AC power supply is suddenly stopped, so that the user will not be affected to continue to monitor the child in the power failure environment.
Baby Monitor Security Camera,smart 1080P camera PTZ Baby Monitor,Night Vision Solar Surveillance camera,PTZ rotation,Motion detection
Shenzhen Fuvision Electronics Co., Ltd. , https://www.outdoorsolarcameras.com