How to choose the seeds of Brassica oleracea? What are the methods of raising seedlings?

Wutan vegetable, also known as Pinus elliottii, black cabbage and so on, is a kind of cold-tolerant vegetable. Wutan vegetable is rich in nutrition, unique taste, deeply loved by people, many people want to grow their own. Generally speaking, Wutan vegetables are sown with seeds, so how to choose the seeds? What are the methods of raising seedlings? Let's get to know it.

How to choose the seeds of Brassica oleracea?

There are many ways to buy Wutan seeds, which can be sold online or in local agricultural stores. In general, Wutan vegetable seeds are sold by package, and the price is about 3-7 yuan per package. When we buy, we should pay attention to the packing date, manufacturer, and variety, and it is best to choose the one with a shorter time.

What are the seedling raising methods of Wutan vegetable?

1. Sowing and raising seedlings

In order to spread the seeds evenly, you can first mix some dry and fine soil grains in the seeds, rake once with a shallow rake after sowing and tread again with your feet, so that the seeds are closely combined with the soil to facilitate seed germination. The seedlings can emerge after sowing for 3-4 days, and the seedlings grow to 2 leaves and 1 heart at 7-15 days after sowing, and the distance between seedlings is 2-4 cm.

2. Colonization

The seedlings are 25-30 days old, and can be planted when the seedlings grow to 6-7 true leaves, and the row spacing is 25-33 cm. Water in time after planting to promote the slow seedling.

3. Field management

Wudan vegetable is relatively easy to manage, and there can be no shortage of water in the process of growth. after slowing down the seedlings, it is necessary to water regularly to promote root growth. When applying fertilizer to Wutan vegetable, quick-acting nitrogen fertilizer can be applied, which is beneficial to the growth of Wutan vegetable. In winter, the ground temperature is low and the growth is slow, so we should reduce the times of topdressing, and we can also sprinkle some plant ash and soil fertilizer on the soil to ensure that Wutan vegetables can survive the winter safely.

4. Pest control

The main diseases of Brassica campestris are black spot and virus. The control of black spot can be sprayed with 500 times of 75% chlorothalonil wettable powder or 1500 times of 50% prohydantoin wettable powder. The virus disease can be prevented and treated with spraying 20% virus A wettable powder 500x or 1.5% Zhishiling emulsion 1000 times at the initial stage of the disease. Spray once every 7 days and 3 times in a row.

5. Harvest

The harvesting conditions of Wudan vegetables can be determined according to climatic conditions and market conditions. Generally, they can be harvested 30-40 days after planting. If they need to grow up fully, they can be harvested about 70 days after planting.

Wutan is a kind of high-quality vegetable with edible value, ornamental value and high yield. It is not only one of the main vegetables in winter, but also one of the more popular vegetables. You can consider buying seeds for planting.

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