How to plant Shanghai green seeds

Shanghai green is also called small cabbage, small rapeseed, white cabbage, and green stem vegetable. It has many names. It is a cold-resistant green vegetable that is not afraid of low temperatures and is not easily damaged by frost. Its leaves are tender green, which is what green vegetables should look like, and it is loved by many friends.

Shanghai Qing likes cool weather. Most varieties are cold-resistant but not heat-resistant. They are fragile in the seedling stage. The optimum germination temperature is 20 degrees. It grows fastest at 18 to 20 degrees with sufficient light. Loam and sandy loam are the best planting soils. Other soils can also grow normally. It grows better if the soil is kept moist.

Steps for planting Shanghai green seeds

1. Choose a seed

Shanghai Qing is mostly planted in autumn and winter. In Jiangsu and Zhejiang areas, it is sown in September and October. Choose low-temperature-resistant and disease- and insect-resistant varieties in autumn and winter, and select full and high-quality seeds. Seeds are sold in many places in vegetable markets and on the Internet.

2. Choose the soil

Choose a planting location with loam or sandy loam, maintain good drainage and sufficient sunshine, till the soil, add an appropriate amount of organic fertilizer to the soil and mix well to increase the nutritional content, level the land, break up the soil and remove weeds.

3. Planting method

Shanghai greens can be planted by broadcasting or row sowing. First, water the land thoroughly, then spread the seeds evenly on the land surface, and cover the seeds with 1-2 cm of soil. Because they need to survive the winter, the soil should be a little deeper, but not too thick. Water the seedlings appropriately every morning or evening to keep the soil moist.

Shanghai Green Seed Planting Method

1. Shanghai green can be grown in most areas. It is a leafy vegetable with strong cold resistance. It rarely suffers frost damage when encountering short-term low temperatures. It can be planted all year round in the southern region and is planted more in spring and autumn in the cold northern regions. When the temperature is particularly low, it needs to be planted in a greenhouse.

2. Choose varieties with high cold resistance, sow seeds directly, cover them with a layer of film, keep the soil moist, and do not let it be too dry before the seedlings emerge. After preparing the land, spread the seeds and cover them with soil, then tamp them down. Water the seeds when the soil surface is dry.

3. The main fertilizer for Shanghai green is nitrogen fertilizer. The base fertilizer can be rotted chicken manure. During the growth period, a small amount of ammonium sulfate can be applied with water. When Shanghai green lacks nitrogen during its growth period, the growth rate is slow and the leaves turn yellow. Quick-acting nitrogen fertilizer should be added in time.

4. When planting Shanghai green in autumn and winter, it is necessary to prevent and control diseases. Common diseases include soft rot, downy mildew, damping-off, leaf spot, etc. You can spray chlorobromoisocyanuric acid, pyraclostrobin, tebuconazole, etc. If it rains continuously, drain the water in time, cultivate and loosen the soil to improve the air permeability of the soil.