How long is the growing period of Chinese cabbage? When will the picking be on the market? How to fertilize?

Chinese cabbage is a kind of vegetable originating in China, also known as heading cabbage and cabbage, which is cultivated all over the north and south. So how long is the growing period of Chinese cabbage? When will the picking be on the market? How to fertilize?

How long is the growing period of Chinese cabbage?

1. The growth period of Chinese cabbage is about 55 days.

2. Chinese cabbage is a biennial plant, but it can also blossom and bear seeds in the year of sowing in early spring. The growth and development cycle of Chinese cabbage is divided into two stages: vegetative growth and reproductive growth.

(1) germination period. It takes 5-7 days under suitable conditions.

(2) seedling stage. It takes about 16 to 20 days.

(3) rosette stage. It takes about 15-20 days for early-maturing varieties and 25-28 days for late-maturing varieties.

(4) heading period. The early-maturing variety was 25-30 days, and the middle-late-maturing variety was 25-50 days.

When will Chinese cabbage be picked and put on the market?

The time of planting and harvesting varies with different varieties and regions of Chinese cabbage.

1. Spring cabbage: sowing in autumn, young seedlings overwintering, harvesting adult plants in the next spring; sowing in early spring and harvesting seedlings. Those who sow seedlings in a cold bed in early spring or sow seedlings after the Spring Equinox can also be harvested and grown.

2. Summer cabbage is mainly cultivated and harvested. It can be sowed and harvested at any time from early May to early August.

3. Autumn and winter cabbage: raising seedlings and transplanting, harvesting mainly into plants. In South China, the seeds were sown from September to December and harvested in stages to February of the following year. In the Yangtze and Huaihe River areas, the seeds were sown from the first ten days of August to the middle of October, and the harvest was finished before freezing.

How to apply fertilizer during the growing period of Chinese cabbage?

The main results are as follows: 1. The seedling fertilizer is from cotyledons to true leaves to 8-10 leaves, about 15-20 days for seedling stage. At this time, the growth rate is faster, and it is the fastest period of root and leaf cell and tissue differentiation, although it does not need much fertilizer, but the lack of it has a great impact on the future yield. Therefore, 10 kg of ammonium nitrate should be applied per mu after seedling determination.

2. After the key topdressing Chinese cabbage enters the rosette stage, the root system occurs in large numbers, the growth is easy to increase sharply, and the fertilizer absorption is large, and the leaves that produce nutrients in the heading stage basically grow at this stage. therefore, the exuberant growth in the rosette stage plays a decisive role in the growth of the leaf bulb. This period is a critical period for good or bad intentions in the future. Rosette period is generally 20-25 days, 15 kg ammonium nitrate per mu, and combined with a certain amount of phosphorus and potassium fertilizer to promote the growth of outer leaves and lay the foundation for good intentions.

3. The period of top dressing in the core stage accounts for 1 beat 2 times in the growth period, and the growth accounts for 2 times 3, which is the key period for the formation of Chinese cabbage core. If you lose fat at this time, it will directly affect the compactness of the core and affect the yield and quality. The outer leaves near the heart leaves continued to grow in the early stage of the pericardium, which was also the fastest growing period of 1 to 5 core leaves, when 15 kg of ammonium nitrate was applied per mu; in the middle stage of the pericardium, the outer leaves almost no longer grew, and 10 kg of ammonium nitrate was applied per mu; in the later stage of the pericardium, due to short light and low temperature, the plant grew slowly, absorbed less nutrients, and the effect of topdressing was not obvious.