The Latest Technical Methods and Tutorial for Cabbage Field Management
After cabbage is planted, the most important thing is field management throughout the entire growth period. Specific measures need to be taken according to the various characteristics of cabbage to promote better growth and improve its edible value. In fact, it is the artificial regulation of the relationship between each stage and the growth requirements. Field management can be roughly understood through the following points.
1. Irrigation
Cabbage is a leafy vegetable, and the most important thing for leafy vegetables is to maintain the moisture of the aboveground parts. Because of the large number of leaves, there is inevitably a great transpiration consumption of water every day, so the soil needs to maintain a certain water storage capacity at all times. Therefore, in addition to natural rainfall, artificial irrigation is often needed, and for large-scale planting, pipes can be laid in the field for drip irrigation. Before emergence, water every other day to keep it moist and promote seed germination; after emergence, water promptly to help the roots grow downward and stabilize growth; during the leaf-rolling stage, the water requirement increases greatly compared with the seedling stage, requiring large amounts of irrigation; when heading begins, the greatest amount of water is needed to promote leaf growth, and afterward the water requirement gradually increases and decreases, until heading is complete, when watering should be gradually reduced to prevent the head from absorbing water and splitting.
2. Topdressing
In addition to applying sufficient base fertilizer before sowing, topdressing should be carried out separately at each growth stage of cabbage to meet different growth needs. At the seedling stage, some plant ash is generally needed as potassium fertilizer to strengthen the root system and stabilize plant growth. At the same time, some nitrogen fertilizer should be applied, but it needs to be diluted with water and used in small amounts many times to avoid the roots being unable to absorb it. When leaf rolling begins, a large amount of nitrogen fertilizer is needed to promote leaf growth and carry out photosynthesis to produce nutrients. The period with the greatest fertilizer demand is the heading stage, when 30 jin of urea per mu can be applied to meet growth needs.
3. Temperature and Light
Throughout the entire period, the temperature is best kept between 20 and 30 degrees, which allows good growth. For open-field planting, power lines and applied compost can be used to regulate temperature. Facility cultivation is much more convenient. Generally, the light conditions during the suitable growth period can meet the requirements, and under unsuitable conditions, artificial regulation can be used.
4. Disease and Pest Prevention
Generally, at the seedling stage, pay attention to damping-off disease, and spray carbendazim promptly once it is found. In the later stage, pay attention to the harm of slugs, and salt and ginger powder can be scattered near the plants to keep them away. If cabbage caterpillars are found, focus on spraying Bo.t. emulsion or Qingchongjun No. 6 liquid for control.
The most important thing in cabbage cultivation is to do a good job in field management. Generally, the above measures are used to control the growth and development of cabbage at each stage. If you want to grow cabbage well, you should treat it seriously and maintain it carefully.