Accumulated temperature instrument to determine the suitable sowing date of Chinese cabbage In agricultural production, accumulated temperature is an important reference factor, and it plays an important role in the growth and development of crops. At the same time, the suitable accumulated temperature is the main factor that causes the Chinese cabbage to form a compacted leaf ball in the concurrent period. Therefore, it is also determined. The main basis for the appropriate sowing period. Here we introduce the use of accumulated temperature instrument to determine the sowing date of cabbage. The production of Chinese cabbage under natural conditions has great changes in meteorological conditions. Although it is cultivated in a more suitable season, it may not completely coincide with the required optimum temperature in different vegetative stages. There are some unpleasant meteorological factors, such as high and low temperature values ​​exceeding the suitable range for photosynthesis (26°C and above, 6 Below °C), its assimilation is weakened, and even the accumulated substances are almost consumed by the respiration, which adversely affects the vegetative growth of Chinese cabbage. For example, in such years, the sowing period will be determined according to the growing period. This will not only result in the production of societies with high water and fertilizer and management levels, but also in production units with high water and fertilizer conditions and management levels. On the other hand, in such an abnormal year, there will be harvesting of some years of early harvest, and some years of late sowing will yield high yields. This is the reason for the early and late broadcast of different opinions. The reasons for these early and late sowing, harvesting, and late harvesting were analyzed. Whether the total temperature obtained during the vegetative growth of different varieties in the year was related to the need for good balling. The total temperature of the temperature is closely related. For example, Tonghua, which was planted in Jiamusi City from July 20 to July 25, 1975, had a bumper harvest and an average yield of 6,500 pounds per mu. The accumulated temperature was calculated to be 1449.7°C. In 1976, on the same day of July 20, sowing and harvesting were generally reduced due to bad knots, with an average yield of 500 pounds per mu. The accumulated temperature during the year was only 1315.4°C, a decrease of 134.3°C compared to 1975. In summary, regardless of whether the climate is normal or abnormal, the main factor that leads to the fact that Chinese cabbage can eventually form a firm leaf ball in the vegetative period is to see if it can meet the appropriate temperature recorded in each growth period, that is, the entire period of nutritional growth. Accumulated temperature. Therefore, the basis for the appropriate sowing date should also be determined by the appropriate accumulated temperature. At present, if we can measure the accumulative temperature value needed for culturing the vegetative growth period of different varieties and use this as a basis, we can check the weather data of all ages, and find out the suitable sowing date range for different regions and varieties. At this rate, the local meteorological mid-and long-term forecast of the year, combined with the level of cultivation and management, will determine the appropriate sowing date for the year and will provide a scientific basis for the stable yield of local Chinese cabbage production. Of course, if it is possible to measure different varieties separately, it is most desirable to find out the appropriate accumulated temperature values ​​for each stage of the nutrition phase and to find out the relevant relationships required for other periods. However, before the above requirements can be met, I believe that different regions can calculate the appropriate accumulative temperature for the vegetative growth period based on the best results of the sowing date of different local varieties, especially based on the sowing date of the harvest, and eliminate as much as possible. Accumulated temperature (above the degree, 6 degrees below), using this value as a preliminary basis for the sowing of Russia, will be currently feasible. Two Wheel Electric Scooter,2 Wheel Electric Motorcycle,2 Wheel Eec Electric Scooter,Self-Balancing Electric Scooters Wuxi Jiangyin Xufeng Electric Bicycle Co., Ltd. , https://www.xufengrelxrides.com