Causes and control methods of empty stem of broccoli

Broccoli, also known as broccoli and green cauliflower, is currently cultivated in many areas of our country. Because of its high nutritional value, the market demand is getting bigger and bigger, and more and more people are planting it. But many people often have empty stems in the process of planting, so what is the cause? How to prevent and cure it? Come and have a look with the editor.

1. Seed causes

The main reason for the empty stem of normal broccoli is due to seed problems, if the current variety is not suitable for the local climate and soil, then the empty stem is very likely to occur. If you choose to keep your own seed, genetic variation will also occur during the growth of broccoli, resulting in the empty stem of broccoli.

Control methods: broccoli should be planted in the time, soil characteristics, weather conditions and other reasons, to select suitable for local sowing, not easy to empty stem, high-yield broccoli varieties.

2. Causes of temperature and humidity

Broccoli has high requirements for growth, and the optimum temperature for growth is 15-25 degrees. Too high or too low temperature will accelerate the growth of broccoli and lead to empty stems due to insufficient supply of nutrients in the soil. In addition, the demand for water in the growth process is also more, if the soil is too dry or watering improperly, it will also cause plant water loss, resulting in empty stem.

Control methods: when planting broccoli, the planting time should be arranged reasonably according to the local climatic characteristics to avoid high temperature during the rapid growth of broccoli bulbs. When the soil moisture is too high, watering should be controlled so as not to continue to increase the humidity and drain water in time after the rainy season to reduce the humidity.

3. Improper fertilization

The yield of broccoli is large, and the demand for nutrients is also more. If excessive fertilization is not only not conducive to the growth of broccoli, but will cause broccoli overgrowth, resulting in the phenomenon of empty stem. If boron deficiency is put in, the tissue wall structure in the stem of broccoli will be changed, the tissue in the stem will degenerate, and the empty stem will appear.

Control methods: fertilization for broccoli should be determined according to the actual situation, scientific and rational fertilization, appropriate control of nitrogen fertilizer, more organic fertilizer or organic fertilizer.

4. Harvest time

The harvest time of broccoli is also very important. if the harvest is too late, the moisture in the plant will be reduced, which will not only lead to the empty stem of broccoli, but also lead to the loose and withered buds of broccoli, which will reduce the commercial value of broccoli.

Prevention and control methods: the best harvest time for broccoli is when the harvest time is 10-15 days, and when the diameter of the flower ball grows to 12-15 cm, farmers should harvest it in time.

The above is the introduction of the causes and control methods of broccoli empty stem, hope to help you, want to know more related knowledge, please pay attention to us.