What are the requirements for winter beet growing in sugar beet?
The suitable condition for overwintering of sugar beet in open season is: the annual average temperature is 14°C (0.5°C), the average temperature in January is 0°C (1°C), the average temperature in winter is 3°C (0.5°C), and the average temperature in flowering period is 22°C (1°C) , The average temperature of mature period is 24.5°C (1°C); The annual sunshine duration is 2400 hours (150 hours), in which the reproductive growth stage of the following year (April-June) is 650 hours (50 hours); The annual precipitation is 800 mm (100 mm), the flowering period Relative humidity of air is 70% (5%); farmland irrigation in central provinces. The above meteorological conditions can make beet safe winter, through the vernalization, promote plant growth, and then achieve high yield and quality. In addition, the transformation of sugar beet from vegetative growth to reproductive growth requires the adoption of a low-temperature vernalization stage and a certain light period before convulsions, flowering and fruiting. In the winter (December to February), the average temperature in the field is 1 to 3°C, and 3°C is the best vernalization temperature. Among them, 5°C is the upper limit, and 0°C is the lower limit. The rate of beet bolting in the 3°C region in winter can reach more than 99%. The rate of sugar beet twitching, flowering and fruiting in the regions with greater than 5°C in winter is lower. Below 0°C, beet-null plants have increased significantly.
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