1. The growth of nitrogen deficiency is hindered, the leaves are small and light in color, and the leaves are sparse and easy to fall, affecting photosynthesis. As a result, the growth is poor, the plants are small, and the branches result in less and less.
2. The growth of phosphorus deficiency was inhibited, the plants were short, the leaves turned dark green, the dull gray dull, had a purple spot, and finally fell off.
3. The potassium-deficient leaves have brown spots, abnormal wrinkles, curled leaves, and finally scorch and fire.
4. The growth of calcium-deficient roots is inhibited, the roots are numerous and short, the cell wall is sticky, and the root tip cells are destroyed, resulting in decay.
5. Magnesium deficiency causes chlorosis, yellowing, and albinism. Mg-deficient flowers often begin to bleed green from the lower leaves of the plants, appear yellow, and gradually spread to the upper leaves. The initial veins remain green and the anti-leaf veins turn yellow, and soon the lower leaves turn brown until dead.
6. In the case of iron deficiency and iron deficiency, the upper leaves of the shoots are damaged and the old leaves remain green. When the iron deficiency is slight, the leaf tissues of the flower are pale green and the veins remain green. In severe cases, the leaves are all yellowish-white, and the spots appear gradually and gradually fall off. .
7. In the absence of manganese and flowers, the leaves first became pale with some gray, and brown spots were found at the tip of the leaves. They gradually spread to other parts of the leaves, and finally the leaves quickly wilted, the plants grew weaker, and the flowers could not form.
8. The auxin in the zinc-deficient flower is destroyed and the growth of the plant is inhibited and diseased. Good zinc nutrition can enhance the plant's resistance to fungal diseases.
9. Sulfur deficiency causes chlorosis, and the flower veins are yellow, but the mesophyll tissue remains green, which can be distinguished from the symptoms of magnesium deficiency and iron deficiency. Red patches start to appear from the base of the leaves. Usually, the top leaves of the flower plants are affected early, the leaves are thick, and the branches are fine and lignified.
10. The growth and development of flowers lacking trace elements have a greater demand for nitrogen, phosphorus, potassium, calcium, magnesium, and sulfur, and less demand for iron, manganese, zinc, copper, boron, selenium, and molybdenum. However, the lack of trace elements will also adversely affect the growth and development of flowers. Therefore, it is necessary to topically apply fertilizer to ensure that flowers always bloom.
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