Latest Identification and Control Methods for Cucumber Nutrient Deficiency Symptoms

Cucumbers are grown all over our country, whether on a large scale or in home gardens, and they are very popular. When growing cucumbers, many problems often arise that affect their growth. One of these causes is a lack of trace elements, which leads to nutrient deficiency symptoms in cucumbers. So what are the symptoms of nutrient deficiency in cucumbers? And how should they be prevented and controlled? Let's take a look together below!

1. Calcium deficiency

Cucumbers have a relatively high demand for calcium during growth. If cucumbers lack calcium, symptoms such as stunting and short internodes will appear. This is especially common at the top growing point, where the upper leaves are very small and the edges gradually die back. The leaves gradually form a mushroom shape and dry out from the outside inward. Therefore, when rotating crops and planting cucumbers, we should pay attention to applying an appropriate amount of nitrogen fertilizer. An appropriate amount of calcium nitrate, lime, etc. can be added to organic fertilizer. At the same time, the amounts of potassium fertilizer and nitrogen fertilizer should be controlled well, otherwise they will inhibit the plant's absorption of calcium. When calcium deficiency occurs, foliar fertilizers such as calcium chloride should be sprayed appropriately to supplement calcium in time.

2. Magnesium deficiency

Magnesium deficiency is also one of the main trace element deficiencies in cucumbers. When magnesium deficiency occurs in cucumbers, the mesophyll between the veins of the lower leaves turns yellow, but the veins are not affected and do not show chlorosis. Therefore, the leaves gradually form a net-like mosaic, and the leaves can be felt to be hard when touched. So when applying base fertilizer, we should pay attention to adding an appropriate amount of fertilizers rich in magnesium, such as calcium magnesium phosphate fertilizer and magnesium carbonate. Control the amount of nitrogen fertilizer applied. If magnesium is deficient, then magnesium-containing foliar fertilizer should also be sprayed. At the same time, attention should also be paid to supplementing potassium fertilizer and zinc fertilizer to promote the absorption of magnesium.

3. Boron deficiency

If a cucumber plant lacks boron, the growing point of the plant will gradually die. Flower organ development is blocked, and obvious shortening of the internodes near the growing point can be observed. The leaf edges also gradually turn yellow, and the veins gradually shrink. Therefore, as with magnesium deficiency, when applying potassium fertilizer, we should also pay attention to adding an appropriate amount of borax to avoid boron deficiency in cucumbers. At the same time, when fertilizing, soil testing and formula fertilization should be the main approach, and soil moisture content should be maintained. When boron deficiency occurs, an appropriate amount of chelated boron can be sprayed on the plant leaves.

4. Zinc and iron deficiency

In addition to the above three, a lack of elements such as zinc and iron in cucumber plants can also cause nutrient deficiency symptoms. When zinc and iron are lacking, the symptoms are the same, and yellow heads easily appear. The veins of the top leaves appear yellow-white, and sometimes spots also appear. To prevent zinc and iron deficiency, when applying base fertilizer, pay attention to the balance between organic fertilizer and chemical fertilizer. Control the proportions of major, secondary, and trace elements well, and appropriately spray some foliar fertilizers such as boron and calcium. Then also pay attention to root care work to ensure normal growth of cucumbers.

The above is a brief introduction to cucumber nutrient deficiency symptoms and their prevention and control. That is all for today's introduction. This article is for reference only, and we hope it can help everyone!