The latest Shanghai green planting precautions

Shanghai green is also called Shanghai cabbage, Suzhou green, Qingjiang cabbage, is the East China region to participate in the cabbage varieties, its leaves less stems, stems like gourd ladle, so it is also named white. It has high nutritional value, can provide the minerals and vitamins needed by the human body, and can supplement the elasticity of blood vessels. What are the precautions for Shanghai green planting? Let's take a look.

1. Land selection and fertilization

When planting, it is recommended to choose loose fertile soil, sunny ventilated plots, loam or sandy soil is appropriate, good drainage, sufficient light. After selecting the land, deep ploughing should be carried out before planting, the soil should be raked carefully, and then the base fertilizer should be applied to ensure that there are sufficient nutrients for the growth of Shanghai green. It is recommended to use farm manure or organic fertilizer as the base fertilizer, but it should be fully decomposed when using it to avoid burning the root system.

2. Fertilizer and water management

After emergence, it is necessary to keep the soil moist, watering it in the morning and evening when the temperature is high, it needs a large amount of water during the growth period, and it is not cold-resistant, so pay attention to watering more, but pay attention not to cause soil ponding, and do a good job of drainage after the rain, so as to avoid ponding or causing diseases. Its growth period is relatively short, in order to achieve higher yield, fertilization is indispensable, fertilization should be dominated by nitrogen fertilizer, early attention should be paid to the concentration should be small, late concentration can be appropriately increased, generally spraying organic fertilizer once a week, stop fertilization 2 weeks before harvest.

3. Pest control

Summer high temperature pests and diseases are more, so pay attention to timely removal of old leaves and sick leaves, pests should be eliminated in time, but also appropriate phosphorus and potassium supplements, conducive to plant disease resistance. Reasonable rotation can reduce the harm of diseases and insect pests. For example, in spring and summer, melon, eggplant, beans and root vegetables are planted, then cabbage can be planted, cabbage or cabbage can be planted later, and onion, garlic and spinach can also be intercropped.

4. Timely harvest

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

The above is the introduction of Shanghai green planting precautions, I hope to help you, want to know more about the relevant knowledge, please pay attention to us.