Detailed Explanation of the Key Field Management Techniques for Snow Cabbage
Snow cabbage, also known as potherb mustard, is a common vegetable with excellent taste and good nutritional value, and is deeply loved by urban and rural people. As its market demand expands, its planting area is also becoming wider and wider. However, to grow it well, field management is extremely important. Let's take a look at the detailed introduction below.
1. Thinning and Final Thinning
When the seedlings grow their first true leaf, the first thinning can be carried out, removing the densely crowded seedlings; when 2-3 true leaves have grown, carry out the second thinning, this time removing leggy seedlings, thin and weak seedlings, as well as diseased and pest-damaged seedlings, keeping the seedling spacing at 3-5 cm. When the seedlings grow 3-4 true leaves, carry out final thinning; at this time the seedlings are basically growing uniformly, and no other operations are needed. Just expand the seedling spacing to 10 cm.
2. Transplanting and Planting Out
When the seedlings grow to about 15 cm with 5-6 true leaves, they can be transplanted. In winter this is generally done in late September, and in spring generally in November. When transplanting, first lift the seedlings. When lifting the seedlings, spray the seedbed with plenty of water to soften the soil, and at the same time be careful not to damage the seedling roots, so as not to affect the survival rate after transplanting. After lifting the seedlings, transplant them in grades according to seedling size. In spring, generally 4000-5000 plants are transplanted per mu, while in winter this can be appropriately increased to 5000-6400 plants. If the soil is dry at transplanting, water once with root-setting water to improve the survival rate.
3. Timely Topdressing
Before transplanting, base fertilizer is generally applied, 1500-2000 jin of fully decomposed high-quality organic fertilizer per mu, to ensure rapid plant growth. Compound fertilizer can also be used instead, applying 100-120 kg of ternary compound fertilizer per mu. After transplanting, carry out topdressing 2-3 times according to growth conditions, each time applying 5-6 jin of urea per mu, preferably diluted with water and applied as a drench.
4. Pest and Disease Control
Summer and autumn are the high-temperature seasons, and this is the period when pests and diseases occur frequently. The main pests include aphids, cabbage caterpillars, diamondback moths, and cutworms; the main diseases include viral disease, downy mildew, and clubroot. For pests and diseases, prevention should be the main approach. During the seedling stage and growing period, a mixed pesticide of Lorsban, dichlorvos, phoxim, and others can be sprayed once every 7-10 days, which can provide excellent preventive effect.
The above is an introduction to the field management techniques for snow cabbage. I hope it can help you. If you want to learn more related knowledge, please follow us.