Q: How to manage tomatoes in autumn and winter?
A: Wang Baohai Agronomist
In the autumn and winter in Beijing, tomato is generally cultivated at the end of July and early August, planted at the end of August and early September, and pulled in January of the following year. Generally small sorghum lines are made according to size, width 40-60 cm, height 15 cm; groove width 70-80 cm, average spacing 60-70 cm. Each sorghum top drip irrigation pipe (such as cover film, it is recommended to use black film), planting two lines, spacing 30-35 cm.
â– Irrigation and drip irrigation immediately after planting once permeable, generally irrigation 20-25 square / acre; According to seedling needs and moisture conditions, in the seedling and flowering period of each drip 0-2 times, each irrigation 6-10 square / mu; from the fruit Expansion begins once every 5-10 days, each irrigation 6-12 square meters / mu. In autumn, as the temperature decreases and evaporation decreases, the irrigation interval is gradually extended. Stop watering 10-15 days before pulling.
â– Add fertilizer for seedling and flowering period, each time combined with drip irrigation and fertilizer 3-5 kg/mu; from the fruit expansion period, each combined with drip irrigation and fertilizer 4-6 kg/mu. Depending on the growing trend of the tomato, fertilizer can be stopped once during a certain drip irrigation, but the amount of fertilizer should be appropriately increased in the previous or next drip fertigation; and the fertilizer should be stopped 10-15 days before pulling.
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