Symptoms of Boron Deficiency in Cauliflower and Control Measures

Cauliflower is one of the common vegetables in our daily lives, and it is relatively sensitive to trace elements when grown. If it lacks boron during the growth process, it will have a huge impact on its growth. So what causes boron deficiency in cauliflower? How should it be prevented and controlled? Let's learn about it together.

1. Symptoms of boron deficiency

After cauliflower lacks boron, the 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 will also gradually become lignified or split, the new leaves will dry up, and the curd will gradually turn brown. In the later stage, the stems are hollow, the curd has obvious yellow spots, and finally the inflorescence dies, the root system is short and thick, it is inedible, its marketability declines, and the economic returns of farmers are affected.

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, will also hinder the root system's absorption of boron, causing boron deficiency. Applying too much potassium fertilizer will also affect the absorption of potassium fertilizer and easily cause boron deficiency. Under high-temperature conditions, the transport of boron within the plant will be hindered, thus causing localized boron deficiency in the plant.

3. Control measures

An appropriate amount of fertilizer containing boron 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 in time to prevent the soil from being too dry and affecting root absorption. When topdressing, more organic fertilizer or farmyard manure should be applied, which can comprehensively supplement various nutrient elements and also maintain soil permeability and water and fertilizer retention capacity. When boron is deficient, a low-concentration borax solution can be used as a foliar fertilizer spray, once a week for 2-3 consecutive times, which can alleviate the symptoms of boron deficiency.

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