What is the effect of applying too much calcium fertilizer to strawberries? How to remedy strawberry calcium deficiency fertilizer?

What effect does calcium fertilizer have on strawberry growth and development? What are the symptoms of strawberry calcium deficiency? What are the disadvantages of applying too much calcium fertilizer to strawberries? How to remedy strawberry calcium deficiency? Here are some remedies.

Effects of 1 and calcium fertilizer on strawberry growth and development

The absorption of calcium in strawberry is second only to potassium and nitrogen, and the calcium content in fruit is the highest. Calcium can reduce the respiration of strawberry fruit, enhance the storability of strawberry fruit and reduce physiological diseases; Enhance the stress resistance of strawberry plants; Ensure the normal growth of root system; Reduce the toxic effects of copper and aluminum on strawberries.

2, strawberry calcium deficiency symptoms

The most typical calcium deficiency of strawberry is scorched leaves, hard fruit, blocked root tip growth and damaged growing point. Leaf scorch disease mostly occurs in the accelerated growth period of leaves, which is characterized by leaf shrinkage, or wrinkling, and the tip of leaves can not be fully expanded and turned black. Syrup-like water drops will also flow out from the brown spot on the petiole of the diseased leaf, and similar symptoms will appear at about 1/3 below the flower stem. The surface of calcium-deficient berries is covered with dense seeds, while the seeds on unexpanded fruits can cover the whole fruit surface, and the fruit tissue becomes hard and sour. The roots of calcium-deficient strawberries are short, thick and black, and then appear light black. On the older leaves, the color of the leaves turns from light green to yellow, and gradually turns brown and dry, and syrup-like water drops will form in the middle edge of the leaves.

3. Symptoms of excessive calcium in strawberries

Excessive calcium has no direct symptoms, but too much calcium in the soil will increase the pH value of the soil and affect the absorption of other elements, such as zinc, iron and manganese deficiency.

4. The reason of strawberry calcium deficiency.

If the soil is dry, the concentration of soil solution is large, which hinders the absorption of calcium. Acid soil or sandy soil with large annual precipitation is prone to calcium deficiency.

5, strawberry calcium deficiency remedies

To correct strawberry calcium deficiency, it is best to add gypsum to the soil before planting, and the dosage depends on the degree of calcium deficiency. If gypsum is used as topdressing, the dosage should be reduced. Spraying 0.3% calcium chloride aqueous solution on leaves can alleviate calcium deficiency. In addition, water should be done in time to ensure water supply.