Carrots can be controlled from flowering by using malonylurea type growth regulators (concentration 0.1% – 0.5%) or plant growth regulators such as gibberellin. It is necessary to choose the appropriate drug variety, concentration, and master the correct application time and method.
Carrots are a common type of vegetable, rich in nutrients and highly favored by people. However, during the cultivation process, carrots may experience bolting, which affects yield and quality. To effectively control bolting in carrots, growers usually choose to use plant growth regulators.
I. Maleic Hydrazide Growth Regulators
Maleic hydrazide growth regulators are one of the commonly used drugs for controlling the bolting of carrots. They regulate the hormone levels in the plant body, inhibit the elongation of the stem, and thereby delay the bolting time of carrots. The specific application method is as follows: During the growth of carrots, spraying 0.1% to 0.5% maleic hydrazide growth regulators can effectively control the bolting phenomenon. However, it is necessary to be cautious when using them and avoid excessive use to prevent abnormal growth of carrots.
II. Plant Growth Regulators such as Gibberellins
Apart from malonylhydrazine type growth regulators, gibberellins and other plant growth regulators can also be used to prevent carrot bolting. Gibberellins can promote the growth of carrot plants while inhibiting the elongation of stems, thereby preventing the occurrence of bolting. When using them, it is necessary to select the appropriate drug variety and concentration based on the actual situation, and master the correct application time and method. Generally speaking, spraying during the initial stage of carrot growth or before bolting is more effective.
III. The Importance of Comprehensive Management Measures
Although the use of plant growth regulators can effectively control the sprouting of carrots, comprehensive management measures are equally important. Farmers should choose varieties with strong resistance to sprouting for planting, and strengthen field management by maintaining soil moisture and suitable temperatures. Additionally, timely removal of pests and diseases is also one of the key measures to prevent carrot sprouting.
In conclusion, to control bolting in carrots, growth regulators such as malonylurea or gibberellins can be used. It is important to pay attention to the selection of the drugs, their concentrations, the timing of application, and the application methods. At the same time, strengthening comprehensive management measures is also an important means to prevent bolting in carrots. Through scientific management and reasonable drug application, growers can effectively increase the yield and quality of carrots.
Post time: Oct-29-2025