The suitable sowing time for Shanghai Qing is spring and autumn. The specific sowing time is February, March and September and October each year. The climate in these two periods is more suitable, so it is better to sow. The germination rate is relatively high. The growth cycle of Shanghai green is short. Generally, it takes 20-40 days to mature after sowing and proper maintenance.

Shanghai green sowing time

Shanghai green, also known as Shanghai cabbage, Suzhou green, Qingjiang cabbage, green ginger cabbage, Xiaotang cabbage, green stem cabbage, etc., is the most popular cabbage in Shanghai. Common varieties of Chinese cabbage.

The suitable sowing time for Shanghai Qing is spring and autumn. The specific sowing time is February, March and September and October each year. The climate in these two periods is more suitable, so it is better to sow. The germination rate is relatively high.

Generally, the growth cycle of Shanghai green is short. Generally, after sowing, it will mature in 20-40 days with reasonable maintenance, and then it can be picked and harvested. If managed properly and the fertility is sufficient, the duration of high temperature in summer will not last long. Long, the average yield per mu is not less than 8,000 kilograms.

Shanghai green sowing method

Before planting Shanghai green, the selected seeds should be soaked in warm water for three days to increase the germination rate of the seeds. Select loose and fertile seeds with better drainage. Good soil, sprinkled with plenty of farmyard manure. Then dig a trench at a distance of 30 cm between rows, scatter the seeds evenly in the trench, and cover the seeds with soil.

Key points of planting Shanghai green

1. Shanghai green likes a warm and humid environment, so it needs to be watered in time when planting. If there is a long-term lack of water, the quality will deteriorate and the fiber content will deteriorate. Will increase, be careful not to accumulate water when watering. Shanghai Qing does not have strict lighting requirements, but sufficient sunlight is conducive to growth.

2. Shanghai green has a large demand for water during the production process, especially before the seedlings emerge. It needs to be watered twice a day; after the seedlings emerge, it does not need to be so frequent. The entire growth cycle only needs Just water it once.

3. Diseases and insect pests are the key to affecting the quality and yield of Shanghai green. The main diseases and pests of Shanghai green are downy mildew, aphids, and leaf blight. These diseases generally have higher outbreak rates in summer. High, we need to use some chemical agents for control before entering summer.