Have you eaten in Shanghai Qing? Shanghai Qing is actually a Chinese cabbage, the most common Chinese cabbage variety in East China. Today, we will learn how to cultivate Shanghai, which is rich in nutritional value.
Planting time
In general, Shanghai Qing can be planted all year round. The seeding method we usually plant Shanghai Green is usually for seeding or spreading. First, the land is first poured, and then the seeds are evenly spread. Alternatively, the ditch can be made at a distance of 30 cm per line, and the seeds are evenly planted and covered with soil.
2. Land selection
It is recommended to choose fertile and loose land and ventilated plots. After selecting the land, the next step is to make a deep turn and apply the base fertilizer. It is recommended to use decomposed farmyard manure.
3. Watering and fertilizing
Before Shanghai Qingqing emerges, it should be poured twice a day. After the emergence of the seedlings, only one water needs to be poured. When the Shanghai young seedlings grow three or four true leaves, they must begin to carry out the seedlings. The whole fertilization process of Shanghai Qing is mainly based on urea, compound fertilizer and phosphate fertilizer. Generally, different degrees of fertilization should be carried out according to the growth condition of Shanghai Qing.
4. Pest control
The main pests and diseases of Shanghai Qing have leaf blight, downy mildew and aphids and cabbage caterpillars. The peak period of leaf blight and downy mildew is usually high temperature and rain in summer. First, we need to strengthen the management of the field, and secondly, we can Reproduction using chemical agents can generally be carried out using Bordeaux mixture or carbendazim. The aphids and cabbage caterpillars exist at every stage of the growth of Shanghai blue, which mainly harms the leaves of Shanghai Qing. We can use the trichlorfon or the arbutin to spray.
5. Harvest at the right time
The collection period of Shanghai Qing must be well grasped. When the harvest period is 10 to 15 pieces of real leaves of Shanghai Qing, this time is timely harvest, not too early, not too late, to grasp the harvest time node.
These are all the main points of Shanghai Green Planting. You have planted Shanghai Green in your family. What better ideas do you have for planting Shanghai Qing?
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