Bananas enjoy a hot and humid climate and grow vigorously in areas with deep soil layers, loose soil and well-drained soil. Irrigation cultivation in semi-arid areas similar to southern Jamaica has also been successful. Wild bananas are cultivated with seeds. Artificial bananas can be cultivated with roots and pseudobulbs; the first harvest takes 10-15 months, and then is harvested almost continuously. In order to do a good job of banana care, promote the rapid growth of bananas, grab the market season, harvest early, and ensure the increase of bananas' production and income, we should strengthen the cultivation technology management of bananas in time. 1. Grasp the cleanup of the banana garden: In February, if the landfill of the banana orchard has not been completed, it is necessary to clean up the banana plant in time, remove the frozen and dead banana buds and banana leaves, and combine the change of irrigation and drainage ditch, the dead leaves, the old banana head and the miscellaneous The grass is buried in the original deep ditch, and a small amount of lime is planted as a base fertilizer to complete the seedling tree tray. 2, pay attention to irrigation and drainage: Clean up the drainage ditch around the edge of the field and the banana stalks, remove the accumulated water, prevent the water from immersing the roots and affect the growth; when it is dry, pay attention to the watering, cover the tree tray with straw, etc., keep the surface moist, loose and promote More new roots. 3. Timely fertilization: (1) Organic fertilizer: First, there is no banana for applying winter fertilizer, combined with banana soil to prepare soil and apply small bud fertilizer; second, when banana leaves are pumped; third, when banana is leaf-to-leaf (that is, flower bud differentiation). Each plant can apply 10 kg of farmyard manure, 0.25 kg of phosphate fertilizer and peanut bran, 15 kg of soil and fertilizer, and evenly spread the soil after application, in order to meet the needs of nutrients for growth and development of bananas in various periods. (2) Topdressing: In the small leaf stage, it is necessary to apply thinly, every 7 to 10 days, using decomposed manure or biogas slurry or tanned peanut bran and adding appropriate amount of quick-acting fertilizer to the water. Each plant uses 10~20 kg of urea or Potassium fertilizer 5~10g application, after taking out large leaves, once every 10 days, combined with manure water, each plant uses 50~75 grams of urea and 50 grams of potassium fertilizer. After banana buds, it can be used every 15 days. Apply 200~250 grams of compound fertilizer to the water or apply it after rain. Cover the soil in the rhizosphere. 4, foliar spray fertilizer: In order to promote the rapid growth of the leaves, turn green quickly. When the new leaves are pumped, the root dressing is carried out every 7~10 days. It can be sprayed with Shibao, Gaomei Shi, Shengdusu, triacontanol, etc. Spraying plant growth regulators. 5, cut off the bud: After selecting 1~2 strains of two-way sucking buds as the result of the next year, the remaining sucking buds will be excavated or cut off in time, and then the growth point will be excavated with a small knife and a small hole with a width of about 2 cm, and poured into 2~3 ml. Kerosene causes necrosis of growth points, reduces nutrient consumption, and promotes the growth of mother plants. 6, prevention of pests and diseases: Banana flower leaf heart rot, bunch top disease should be based on prevention, combined with spray fertilizer, use 1.5% Pule 1500 times solution or 2.5% kungfu 3000 times liquid and other pesticides to spray aphids, completely eliminate the drug transmission medium; At the same time, together with the whole plant, the buds were excavated and buried or burned, and the virus was sterilized with 600 times of liquid and the bacteria were poisoned. In order to improve the immunity of plants and protect the growth of healthy plants, the serious banana plantation should be rotated, and the banana stalks should be painted with 1:1:10 Bordeaux pulp plus 50 g of trichlorfon to control stem rot and weevil; When the old leaves of bananas are found to have water-stained lesions, use 25% of the enemy forces to remove 1200 times of liquid spray, and use the 25% enemy force to remove 1000 times liquid or 30% love seedlings 1500 times liquid for prevention and control. 30% love seedlings 1500 times liquid or 25% potential grams 2000 times liquid prevention, every 15 to 20 days, once every period of 2 to 3 times, the control effect is obvious. Banana is a beneficial fruit rich in starch. Food and analysis from the perspective of Chinese medicine: bananas are sweet and cold, can clear the heat and intestines, and promote gastrointestinal motility, but spleen deficiency diarrhea is not appropriate. There is always a reasonable explanation for everything, bananas are cold, according to the principle of "hot person cold", it is most suitable for hot people to enjoy. Those who suffer from hemorrhoids and those who are uneasy due to dry heat can eat raw banana meat. Disclaimer: Some articles on this website are transferred from the Internet. If legal rights of third parties are involved, please inform this website. phone
How do WiFi Camera Work ?
Monitoring cameras can also be installed without a network, but some functions cannot be used, such as remote monitoring. In order to make it easier for you to understand the knowledge related to the surveillance camera, I will use popular language to popularize science for you.
1: Camera introduction
Camera is an intelligent device that can capture and record video and monitor the environment in real time. It can not only record video, but also detect moving objects, sound, smoke, and even recognize faces.
The advantages of the camera are very obvious. It can help people better monitor the safety of their homes or offices, and help protect the safety of family members or office staff. In addition, it can also provide real-time video monitoring, provide more security guarantees, and help people better grasp the current security situation.
Among them, "intelligent camera" is a new technology in recent years, which can monitor the environment in real time and conduct intelligent identification. The intelligent camera adopts high-definition camera technology, which can clearly capture the on-site images within the monitoring range and conduct real-time monitoring. It can also analyze the captured pictures to identify the designated person or object, thus realizing intelligent monitoring.
In addition, the smart camera can also support remote monitoring. You can remotely view the real-time image of the camera through your mobile phone or computer, allowing users to view the image of the camera anytime and anywhere, to better protect the security of your home or office.
At present, cameras have been widely used in the security industry to monitor buildings, parks, schools and other places to protect the safety of the people. It can also be used in commercial places to help businesses achieve intelligent management, improve business environment and improve service quality.
2: Working principle of camera
The working principle of the camera is to reflect the light to the sensor, convert the signal captured by the sensor into a digital signal, and finally send it to the computer to display the image. Then the camera can capture the static and dynamic images in the picture.
The sensor of the camera is the most important part. It can capture light and convert it into electrical signals. There are many types of sensors, the most common are CCD and CMOS sensors, which can be used to capture images.
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