What to Do About Boron Deficiency in Cauliflower? Symptom Identification and Control Methods

Cauliflower is one of the common vegetables in our daily lives. When growing it, it is relatively sensitive to trace elements. During its growth, a lack of boron can have a huge impact on its development. So what causes boron deficiency in cauliflower? And how should it be controlled? Let's find out together.

1. Boron deficiency symptoms

After cauliflower becomes boron deficient, its stems and leaves become stiff and break easily, the growth of the top leaves is hindered, the leaves curve outward and become deformed, and the lower leaves gradually turn yellow. Its stems and leaves also gradually become lignified or split, the new leaves dry up, and the curd gradually turns brown. In the later stage, the stems are hollow, the curd has obvious yellow spots, and eventually the inflorescence dies, the root system is short and thick, and it is inedible, so its marketability declines, affecting the grower's economic returns.

2. Causes of boron deficiency

There are many causes of boron deficiency in cauliflower. When the soil is dry, it affects the root system's absorption of boron. Applying too little organic fertilizer to the soil, or applying too much nitrogen fertilizer, can also hinder the root system's absorption of boron, causing boron deficiency. Applying too much potassium fertilizer can also affect the absorption of potassium fertilizer and easily cause boron deficiency. Under high-temperature conditions, the transport of boron within the plant is hindered, so local boron deficiency occurs in the plant.

3. Control measures

An appropriate amount of boron-containing fertilizer can be added to the base fertilizer. Generally, applying 1-1.5 kg of borax per mu can meet the plant's boron needs throughout the entire growth period. During drought, water should be applied promptly to prevent the soil from becoming too dry and affecting root absorption. When topdressing, apply more organic fertilizer or farmyard manure, which can comprehensively supplement various nutrient elements and also maintain soil permeability and its water- and fertilizer-holding capacity. When boron is deficient, a low-concentration borax solution can be used as a foliar spray, once a week for 2-3 consecutive times, which can alleviate the boron deficiency symptoms.

The above is an introduction to the symptoms and control measures of boron deficiency in cauliflower. I hope it can help you. If you want to learn more related knowledge, please stay tuned to us.