Plants lack calcium elements
symptom
When the plant lacks calcium elements, the edges of the leaves will appear yellow, withered, and curved, the root system is not good, the root tip color is brown, and the root of the roots will also appear rotten, or even endangered.
Solution
Calcium fertilizer (such as lime) can be applied to potted soil to improve plant growth.
Plants lack iron elements
symptom
When the plant lacks iron, the old leaves are still green, but the new leaves become yellow, and the veins remain yellow. Later, the leaves became yellow and white, and the veins gradually became yellow. When the plant is severe, the leaves will have small spots, and the leaves will dry or even die.
Solution
Apply the root of the plant with fertilizer containing ferrous sulfate, or spray it with leaf fertilizers with iron -containing elements on the plant leaves.
Plants lack manganese elements
symptom
When the plant lacks manganese, there are yellow -brown spots or reddish brown spots on the top of the flower leaves. The leaves are gray -white, and the small spots on the top gradually expand until the leaves wither.
Solution
Timely applying manganese -containing fertilizer for plants.
Plants lack phosphorus
symptom
Plants grow slowly when the phosphorus deficiency, delay in flowering, the color of the leaves becomes dark dark green, the plant loses luster, and a small purple or red spot will appear. In severe cases, the leaves will die.
Solution
Plants apply phosphorus fertilizers.
Plants lack potassium
symptom
Brown spots appear on the leaves of flowers, the old leaves are wrinkled normally, and the edges are scorched.
Solution
Add potassium fertilizers to plants.
Plants lack magnesium
symptom
The plant began to turn yellow slowly from the lower half of the leaves, and then the leaves of the entire plant became yellow, and the veins were still green. Without timely remedy, the leaves will become brown and die.
Solution
Magnesium -containing fertilizers are applied for plants.
Plants lack sulfur
symptom
Starting from the leaf veins of the leaves, the leaves will slowly appear erythema, which will eventually cause the entire plant to die.
Solution
Sulfur -containing fertilizer is applied to the plant.
Plants lack boron elements
symptom
The top of the flower stops growing, the deformity of the new leaf is shrinking, the veins are yellow, the plant growth rate is slow, and the plants will no longer bloom when the boron deficiency is severely deficient.
Solution
Plants apply boron -containing fertilizers.