Detailed explanation of the latest key points for summer cabbage planting and management
Cabbage is the most common vegetable in our daily life. Right now it is the planting time for summer cabbage, and the high-temperature, high-humidity environment of summer makes pests and diseases of cabbage relatively severe, which can seriously affect the growth of cabbage. So if you want high yields from summer cabbage, how should you manage it? Let's find out.
1. Seedling raising and transplanting
There is a lot of rain in summer, which very easily leads to waterlogging in the field, so you should choose a plot with higher terrain and convenient drainage and irrigation as the seedling bed. If you use the broadcast sowing method for raising seedlings, it will lead to uneven emergence and cause waste. So it is recommended that you use nutrient soil or nutrient pots for raising seedlings, and if you use the dibbling method, it is not only easy to manage but also produces neat and uniform seedlings. In summer's high temperatures, the seedling bed can be covered with a shade net to lower the temperature of the seedling bed and reduce the washing of rainwater on the leaves. Uncovering it on cloudy days or at night will also make the seedlings the main issue. One week before transplanting, uncover the shade net so that after transplanting the sudden change will not cause the seedlings to suffer and extend the seedling recovery period, thereby affecting yield.
2. Strengthen management of severe weather
Summer has a lot of rainstorm weather. Some farmers pay no attention to the seedlings after a rainstorm, causing cabbage seedlings to grow thin and weak and making them very susceptible to pest and disease infection. You can use greenhouse cultivation and can change to plastic film before the rainstorm comes to prevent rainwater washing, and drain water promptly after the rain and irrigate with cool water to lower the temperature, which is beneficial to seedling growth. For seedlings washed out of the soil, promptly cover them with soil, straighten them, and rinse the leaves soiled by mud so that the seedlings can recover growth as soon as possible.
3. Strengthen field management
When planting Chinese cabbage in summer, because the temperature is relatively low, the heading speed is slow, and some varieties or some individual plants do not easily form heads or their heading period is delayed. Some growers mistakenly think this is due to the variety, but in fact whether heads form has a great root relationship with the sowing period and fertilizer and water management. If sown too early, being under temperatures below 10 degrees for a long time will cause Chinese cabbage to pass through vernalization and bolt, which will also cause no heading, or if the temperature exceeds 35 degrees for a long time, it will also seriously affect heading. Therefore, during the heading period, pay attention to fertilizer and water management, apply more phosphorus and potassium fertilizer and organic fertilizer, control the application amount of nitrogen fertilizer, suppress excessive plant growth, and supply water scientifically during the heading period. The water supply should be uniform and sufficient, and avoid too much at one time and too little at another, or alternating dry and wet, to prevent the leaves of Chinese cabbage from curling and wilting.
4. Pay attention to pests and diseases
Summer is the peak period for cabbage pests and diseases. Common diseases include downy mildew, viral disease, soft rot, powdery mildew, aphids, cabbage caterpillars, and so on. If prevention and control are improper, it will cause poor growth of cabbage and will also cause cabbage not to form heads, so when cabbage is heading, pay attention to checking the leaves and promptly prevent and control pests and diseases.
The above is an introduction to the key points of summer cabbage planting and management. We hope it can help you. If you want to learn more related knowledge, please follow us.