The southern part of Shanghai can be sown all year round, but it does not grow well in summer. The climate in the northern region is cold, so it is best to sow in spring, summer and autumn, and pay attention to cold and warmth. When planting, soak Shanghai green in warm water for two or three days, and do germination treatment. When you feel the seed coat softening, turn it to a place with more scattered light and good ventilation to dry for a day or two, usually waiting for five days to germinate.

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Sowing time of Shanghai green

The southern part of Shanghai can be sown all year round, but it does not grow well in summer. The climate in the northern region is cold, so it is best to sow in spring, summer and autumn, and pay attention to cold and warmth.

Sowing temperature of Shanghai green

Some varieties of Shanghai green like to be cold and cool, not resistant to high temperature and cold, and the suitable germination temperature is 20-25℃, and the suitable growth temperature is 15-20℃.

Shanghai green sowing method

Shanghai green should first breed varieties with strong disease resistance and high yield, and then fertile soil. Make ditches according to the width of 1.5-2 meters, and then sprinkle enough farmyard manure. According to each 30 cm long ditch, spread the seeds evenly on the ditch and cover it.

Shanghai green sowing and germination

Soak Shanghai green in warm water for two or three days, and do germination treatment. When the seed coat becomes soft, turn it to a place with more scattered light and good ventilation to dry it for a day or two. Generally, it takes five days to see the seeds germinate.

Shanghai Green Seeding Emergence

When planting seeds in autumn, keep the daily average temperature 18-20 degrees for maintenance, and sprinkle water at the right time, which usually takes 2-3 days to germinate.