MySheen

Production and control methods of heterochromatic flower bulbs in broccoli

Published: 2024-11-05 Author: mysheen
Last Updated: 2024/11/05, Broccoli, also known as green cauliflower, broccoli, like cool climate, the summer sowing cultivation techniques are introduced as follows: 1. Pre-preparation (1) varieties. The first generation hybrid varieties with early maturity, strong stress resistance and the highest yield were selected. The main varieties are jade crown, super jade crown, ten thousand green and so on. (2) parcels. Rich in organic matter is required.

The purple bulb is an abnormal phenomenon that forms a red-white uneven purple mottled on the surface of the bulb, which is caused by the influence of low temperature during the development of the bulb. Prevention and control measures: strengthen cultivation management during the heading period, and carry out short-term plastic film insulation in the arch shed before the arrival of low temperature weather or before the sudden drop in temperature, so as to avoid the harm of low temperature. Second, the yellow flower bulb often turns yellow in the production process of broccoli, which seriously affects the commodity value of broccoli. The rosette is mainly formed by strong sunlight, especially the early-maturing varieties cultivated in autumn. Prevention and control measures: when the diameter of the flower ball grows to 3 cm, the 1-2 outer leaves close to the flower ball can be gently bent to cover the flower ball to avoid strong sunlight. Third, when the temperature of the brown bouquet drops sharply below l ℃, the bouquet is easy to turn brown. Prevention and control measures: strengthen cultivation management during the heading period, and carry out short-term plastic film mulching and heat preservation in the arch shed before the arrival of low temperature weather or before the sudden drop in temperature, so as to avoid the harm of low temperature.

 
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