Corn empty stalk refers to the phenomenon that corn has no ear or no ear, and baldness indicates that the upper part of the ear is not strong. Empty stalks and baldness are more common in corn production, especially in the disaster years, and even become the main factor in the reduction of production.
First, the main cause of corn empty stalk
1. Over-close planting and excessive dense planting are extremely unfavorable to some rare and large-spike varieties, so that the middle corn plants cannot fully receive sunlight, resulting in the formation of empty culms in the female ear.
2, jointing period, low-temperature, low-temperature, low-temperature, dizzy, summer maize, 25-30 days after the emergence of corn began to join the jointing period, when the positive period of female ear differentiation, in the event of rain and sunshine, corn photosynthesis is affected, resulting in insufficient nutrients, can not meet the female The need for ear differentiation results in the inability of the ear to differentiate or poorly differentiate, forming empty stalks.
3, tasseling before high temperature and drought caused tassel, ear flowering inconsistent, tassel flowering loose powder in advance, excessive hair stranding lagging, resulting in empty flower stalk formation.
4, male pollen caused by rainy days in the pollination period can not be very good loose powder, even if the pollen falls on the female silk filament is also broken due to excessive water swelling or washed out by rain can not normally pollinate and cause empty stalk.
Second, the reasons for corn tip and empty stalk are similar
1, excessive density caused malnutrition.
2. In the late stage of female ear differentiation, drought or rainy weather can cause pollination of the head of the flower.
3, tasseling before the high temperature and drought caused by male and female flowering period is not the case and caused the top of the filament can not be pollinated.
4, the late pollination pollen caused by the top flower line can not pollinate and bald.
Third, preventive measures:
1, according to the local climate and water and fertilizer conditions to select the appropriate species.
2, according to the characteristics of different varieties to determine the appropriate density.
3, timely early sowing can meet the corn's demand for light and heat, but also can effectively use natural precipitation to coordinate corn growth, but also to avoid the disease caused by late cool weather.
4. Strengthen fertilizer and water management before tasseling to avoid “card neck drynessâ€.
5. Artificially assisted pollination can compensate for poor pollination caused by weather and other reasons, and effectively prevent the occurrence of baldness and empty stalks.
Mobile Digital Video Recorders
Mobile Digital Video Recorders, also called MDVR, Vehicle DVR, or Mobile DVR,are a kind of device that compresses and stores the video inside and outside the car after the digital-to-analog convertion with advanced video and audio coding and decoding technology. Meanwhile, Mobile DVR for Vehicles supports GPS positioning, entertainment playback, wireless network transmission and so on.
The Mobile Digital Video Recorder, which adopts the high-performance H.264 coding standard, and integrates the 3G video capture, GPS global satellite positioning management, wireless transmission, 3G wireless communication technology, video surveillance technology, is the core part of a new generation of the wireless vehicle video surveillance solutions. The (4 Channel) Mobile DVR has powerful audio and video capture, driving data storage and transmission functions, advanced shockproof, dustproof, and heat dissipation(based on the all-aluminum heat dissipation design concept) patented technologies, with three network communication methods optional, and it is suitable for high-speed Sports, severe vibration, unstable power supply, severe interference, dusty and other harsh vehicle mobile environments, and widely used in buses, subways, trains, long-distance buses, taxis, logistics vehicles, private cars, special vehicles (such as cash transport vehicles) and other mobile video surveillance fields.
Mobile Digital Video Recorder Functions
1. Using H.264 video compression technology, high compression ratio, suitable for narrowband wireless transmission;Digital Video Recorder, MDVR, Vehicle DVR, Mobile DVR, Mobile DVR for Vehicles, 4 Channel Mobile DVR,Monitor System,Vehicle monitoring, Ship monitoring, Road monitoring
SHENZHEN SANAN TECHNOLOGY CO.,LTD , https://www.sanan-cctv.com