Matters needing attention in planting green in Shanghai

Shanghai green, also known as Shanghai cabbage, Suzhou green and Qingjiang vegetables, is a variety of Chinese cabbage in East China. It has fewer leaves and more stems, and its stem is like a gourd ladle, so it is also famous. It has high nutritional value, can provide minerals and vitamins needed by the human body, and can supplement vascular elasticity, so what are the points for attention in planting Shanghai green? Let's take a look.

1. Land selection and fertilization

When planting, it is recommended to choose the land with loose and fertile soil and sunny ventilation, which is suitable for loam or sandy soil with good drainage and sufficient light. After selecting the land, it is necessary to turn the soil deeply before planting, rake the soil fine, and then apply base fertilizer to ensure that Shanghai green has sufficient nutrients to grow. Farm manure or organic fertilizer is recommended, but attention should be paid to its full maturity when using it, so as not to burn the roots.

2. Fertilizer and water management

After the emergence of green seedlings in Shanghai, it is necessary to keep the soil moist and water once in the morning and evening when the temperature is high. It needs more water during the growing period and is not cold-resistant, so we should pay attention to more watering, but we should be careful not to cause stagnant water in the soil. Drainage measures should be taken after the rain to avoid stagnant water retting roots or causing diseases. Its growth period is relatively short, if it wants to have a higher yield, it is necessary to apply nitrogen fertilizer, the concentration should be small in the early stage, and can be increased appropriately in the later stage, generally spraying organic fertilizer once a week and stopping fertilization two weeks before harvest.

3. Pest control

There are many high-temperature diseases and insect pests in summer, so we should pay attention to the timely removal of old and diseased leaves, when there are pests should be eliminated in time, but also can properly supplement phosphorus and potassium fertilizer, which is conducive to the disease resistance of the plant. Reasonable crop rotation can reduce the harm of diseases and insect pests, such as planting melons and eggplants, beans and root vegetables in spring and summer, and then planting Chinese cabbage, and then planting cabbage or cabbage, or intercropping with onions, garlic, spinach and so on.

4. Timely harvest

The harvest time of Shanghai green must be grasped, and the best harvest time is when the true leaves of Shanghai green reach 10 to 15, too early or too late will affect the quality and yield of Shanghai green.

The above is the introduction of green planting in Shanghai. I hope it can help you. If you want to know more about it, please follow us.