Why do leeks have to be cut three times before they bloom?

It doesn't mean that it must be cut three times, but after about three times, it is just the time when the reproductive system of leek is mature.

Because the leek will grow after cutting, and the longer it is cut, the leek after beginning of spring is the first leek, so it should be cut and germinated two or three times. At this time, before and after Tomb-Sweeping Day, Chinese chives are green and lovely, fresh and delicious. Leek grows old after flowering and tastes bad. Generally, flowers are not allowed until all the seeds are collected.

According to the harvesting standard, leek should be more than 35 cm, with an average of 5 to 6 leaves per plant, and the growth days should be no less than 25 days, preferably 30 days.

Extended data:

Growth habit of Chinese chives:

Leek is a perennial root vegetable of Liliaceae, which has strong adaptability, cold resistance and heat resistance and is cultivated all over China. Many areas in the south can be produced all year round. In the north, although the aboveground part dies in winter, the underground part goes into dormancy, and the topsoil germinates and grows after thawing in spring.

1. temperature: leek is cool, cold-resistant and heat-resistant. The suitable temperature for seed germination is above 65438 02℃, and the growth temperature is between 65438 05℃ and 25℃, and the underground part can bear lower temperature.

2. Illumination: moderate illumination intensity and strong negative resistance. However, the light is too weak, the accumulation of photosynthetic products is less, the tillers are few and weak, the yield is low, and it is easy to premature aging; Too much light, too high temperature, too much fiber and poor quality.

3. Moisture: The suitable air relative humidity is 60-70%, and the soil humidity is 80-90% of the maximum field capacity.

4. Soil nutrition: strong adaptability to soil texture, and suitable pH is 5.5-6.5. The demand for fertilizer is large and the fertilizer tolerance is strong.

References:

Baidu encyclopedia-leek