What to Do About Boron Deficiency in Cucumbers? A Detailed Guide to the Latest Control Methods
Cucumber is one of the vegetables with a relatively high boron requirement; boron is one of the key factors for its growth and development, flowering and fruiting, and seed development period. As the application rate of chemical fertilizers gradually increases, the boron element in the soil decreases, hindering the cucumber's absorption of boron, causing serious impact on the cucumber's yield and quality. So what should be done about boron deficiency in cucumbers? Let's take a look together.
1. Symptoms of Boron Deficiency
Boron deficiency causes the cucumber's root system to be underdeveloped, with weak water and fertilizer absorption capacity, slow or poor plant growth, relatively small flowers, and a large amount of early flower drop. The internodes near the growing nodes appear shortened, new leaves curl outward, the leaf margins turn brown, the leaf veins also show signs of shrinking, and some leaves develop large blotches. The fruit has no blemishes, but the interior is hollow with a corky texture.
2. Causes of Boron Deficiency
The main cause is the soil. If planted in acidic soil, applying a large amount of lime at one time when adjusting the pH can easily lead to boron deficiency. Soil that is too dry can also affect the root system's absorption of boron, making boron deficiency likely to occur; low soil organic matter content means low boron content, thus causing boron deficiency; improper fertilization, such as excessive application of nitrogen fertilizer, will hinder the root system's absorption of boron. During the fruiting period, too much potassium fertilizer should not be applied, as it will also hinder the root system's absorption of boron and easily cause boron deficiency.
3. Control Methods
If the soil is deficient in boron, boron fertilizer should be applied promptly. When applying base fertilizer, apply about 1 kg of borax per mu, which can also meet the cucumber's boron needs throughout the entire growth period. When the soil is dry, water promptly, but pay attention to the amount. When soil moisture content is relatively high, boron is easily lost, so drainage measures should be taken during the rainy season to avoid massive boron loss. Fertilization should be carried out according to the plant's fertilizer needs at each growth stage, and it is not advisable to over-apply any single type. If boron deficiency occurs in the later stage, borax can be diluted with water and sprayed as a foliar fertilizer, which can quickly supplement boron.
The above is an introduction to what to do about boron deficiency in cucumbers. We hope it can help you. If you want to learn more related knowledge, please stay tuned to us.