What causes red caitai (purple flowering stalk) to fail to bolt

Red caitai is a vegetable that many people rather enjoy, and it is rich in nutrients, containing much more vitamins than Chinese cabbage, but when growing red caitai, the phenomenon of failure to bolt often occurs. What causes this? Let's take a look together.

1. The time has not yet come

The reason red caitai does not bolt may be that the time has not yet come. The time when red caitai truly grows fat, plump stalks is in early spring, and its bolting must go through overwintering low-temperature vernalization. If its bolting time has not yet arrived, growers need not worry, because this is a normal phenomenon; simply wait quietly.

2. Insufficient fertility

Red caitai may fail to bolt because of insufficient fertility. In winter, because temperatures are relatively low, many plants stop growing, and during the overwintering low-temperature vernalization process, red caitai needs to consume nutrients. Therefore, heavy fertilizer should be applied on sunny days, using human and livestock farmyard manure and soybean cake mixed with water, so that nutrition is sufficient to promote bolting.

3. Insufficient light

Red caitai is a long-day plant. If it does not get enough sunlight for a long time, it may also fail to bolt, and winter inherently has less sunlight, so the possibility of failure to bolt during cultivation is also relatively high. The small stalks that bolt early can be picked off to let it continue growing; as long as the temperature is suitable, it can also be given additional fertilizer to make it bolt as soon as possible.

4. Boron deficiency

The element boron is indispensable for the growth and development of many crops; it can promote flower bud differentiation in plants. Conversely, if red caitai is deficient in boron, it will cause poor flower bud differentiation, which naturally leads to failure to bolt. So at this time it is recommended to apply Suluboron by flushing, and spray foliar sprays to supplement the boron element the plant needs and promote bolting.

5. Improper use of chemicals

When red caitai has sufficient fertilizer and water and suitable temperatures, the plant is extremely prone to excessive vegetative growth and early bolting, which can have a huge impact on the yield and quality of red caitai. So many growers spray growth-control chemicals to inhibit excessive vegetative growth, but if the chemicals are used improperly, it will lead to red caitai failing to bolt later.

  The above is an introduction to what causes red caitai to fail to bolt. We hope it can help you. If you want to learn more related knowledge, please stay tuned to us.