Causes and control methods of broccoli flower hollow stem

Broccoli, also known as broccoli and broccoli, is cultivated in many areas of our country at present. Because of its high nutritional value, the market demand is also increasing, and more and more people are planting it. But many people often have empty stems in the planting process, so what causes it? How to prevent it? Let's take a look at it together with Xiaobian.

1. Seed causes

The main reason for normal broccoli empty stems is because of seed problems. If the current varieties are not suitable for the local climate and soil at the time of sowing, the possibility of empty stems is very high. If you choose to keep your own seeds, gene mutations will also occur during broccoli growth, resulting in empty stems.

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

2. Temperature and humidity reasons

Broccoli has higher requirements for growth, and the optimal temperature for growth is 15-25 degrees. Too high or too low temperature will cause broccoli to grow faster, and insufficient nutrient supply in the soil will lead to empty stems. In addition, the demand for water in the growth process is also relatively large. If the soil is too dry or watered improperly, it will also cause water loss of the plant, resulting in empty stems.

Control methods: When planting broccoli, planting time should be arranged reasonably according to local climate characteristics to avoid high temperature when broccoli bulbs grow rapidly. Control watering when soil humidity is too high, so as to prevent humidity from continuing to increase, timely drainage after rainy season, reduce humidity.

3. Improper fertilization

Broccoli has a large yield and a relatively high demand for nutrients. If fertilization is too large, it will not only be detrimental to broccoli growth, but will cause broccoli to grow excessively, resulting in empty stems. If boron deficiency is added, the tissue wall structure of broccoli stem will change, and the tissue in stem will degenerate, resulting in empty stem.

Control methods: broccoli fertilization should be determined according to the actual, scientific and reasonable 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 water content in the plant will decrease, which will not only lead to empty stems of broccoli, but also lead to loose and withered buds of broccoli bulbs, which will reduce the commodity value; if the harvest is too early, the broccoli bulbs will not fully grow, which will reduce the yield of broccoli.

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

The above is broccoli empty stem reasons and prevention methods introduced, I hope to help you, want to know more about the relevant knowledge, please pay attention to us.