Seedling raising technique of spring cabbage

Vegetables are an indispensable food in many people's daily lives, and cabbage is also welcomed by many people. Cabbage, as a spring vegetable, has a very large planting area in China. When growing cabbage in spring, because the temperature is still relatively low, seedling work is very important. So how does spring cabbage grow? Today, Xiaobian brought you the seedling technology of spring cabbage. Let's take a look together!

1. Select superior species

In spring when cabbage seedlings, we first have to choose the variety. Just now, the temperature in spring is still relatively low, and it is easy to have cold spring. Therefore, when we select varieties, we should first focus on seeds with strong cold resistance and disease resistance. For example, Chunqiang, Zhonggan 21, etc., these varieties have the advantages of early maturity and high yield. It is very suitable for planting in spring, and selecting high-quality varieties is also the key to ensuring the success of spring cabbage seedlings, so everyone should pay more attention.

2. Seed bed preparation

After selecting the variety, we need to prepare the seedbed. Cabbage seedling bed should be sufficient fertility, the previous crop is not cabbage, cabbage and other similar vegetables. New garden soil can be used for seedling, but also in the nursery bed into sufficient basal fertilizer. Base fertilizer is mainly composed of decomposed farm manure, combined with appropriate compound fertilizer. Inorganic fertilizer should be evenly spread to the soil for deep ploughing and leveling to improve soil fertility. If it is Yangqi seedling, then it should be covered with some plastic film on the ridge surface, about half a month later, when the ground temperature gradually rises, sow again.

3. Timely sowing

We should determine the sowing time according to the planting area. For example, when planting in North China, the best sowing time is from December to January of the following year. Sunlight greenhouse and improved bed seedlings are usually the main breeding methods, which are very beneficial to the growth of cabbage seedlings. Then, the planting density should be determined according to the variety. If it is an early-maturing variety, about 4500 plants should be planted per mu, and about 500 plants should be reduced for medium-maturing varieties. Cabbage seeds can generally be used without germination, can be directly sown into dry seeds. However, sufficient bottom water should be poured into the seedling bed, seeds should be evenly scattered, and a layer of fine soil should be covered to preserve moisture after sowing to avoid water shortage and cracking of the seedling bed.

4. Seedbed management

Before emergence, the temperature should be maintained at about 20 degrees, and generally emergence will occur about 5 days after sowing. After emergence, pay attention to windproof work, and then reduce the temperature to about 15 degrees. If the seedlings grow too dense, then it is necessary to do a good job of thinning seedlings to avoid excessive growth of seedlings. Then, when the seedlings grow to about 3 true leaves, they should be divided again, and the temperature of the seedbed should be maintained at 10-20 degrees. Then in March seedlings before planting to carry out low-temperature seedling work, can appropriately increase ventilation, so that seedlings ahead of time to adapt to the field environment, promote slow seedlings, improve the survival rate of seedlings.

The above is a simple introduction to spring cabbage seedling technology. Today's introduction is here, this article is for reference only, if you want to know more related information, please continue to pay attention to us!