Symptoms and Countermeasures of Flower Fertilizer deficiency

1. Nitrogen deficiency. The growth is blocked, the leaves are small and light in color, and the leaves are sparse and easy to fall, which affects photosynthesis. As a result, the growth is poor, the plant is smaller, the branch is less, the fruit is small and less. Nitrogen fertilizers such as urea and ammonium sulfate need to be replenished in time.

2. Phosphorus deficiency. The growth was inhibited, the plant was short, and the leaves turned dark green, gray and dull, with purple spots, and finally withered and fell off. Supplement potassium dihydrogen phosphate, calcium superphosphate, diammonium phosphate and so on.

3. Potassium deficiency. The leaves appeared brown spots, abnormal wrinkles, leaf edges curled, and finally scorched, showing a burning state. Supplement potassium dihydrogen phosphate, potassium sulfate, potassium chloride and so on.

4. Lack of calcium. The root growth is inhibited, the root system is many and short, the cell wall is sticky, and the root tip cells are destroyed, resulting in decay. Supplement calcium sulfate, calcium superphosphate and so on.

5. Magnesium deficiency. Causes chlorosis, chlorosis and albinism. Magnesium-deficient flowers often begin to fade from the lower leaves of the plant, appear yellowing, and gradually spread to the upper leaves. At first, the leaf veins remain green, the anti-leaf veins turn yellow, and soon the lower leaves turn brown until they die. The supplement of magnesium sulfate and magnesium oxide can be improved.

6. Iron deficiency. When iron deficiency occurs, the upper tender leaves of the branches are damaged, the lower old leaves remain green, when iron deficiency is light, the mesophyll tissue of flowers is light green, the leaf veins remain green, and in severe cases, the tender leaves are all yellow and white, and withered spots appear and gradually scorch and fall off. Supplement ferrous sulfate solution to improve.

7. Lack of manganese. When the flowers were deficient in manganese, the leaves first became pale and gray, and then brown spots were found at the tip of the leaves, which gradually spread to other parts of the leaves. Finally, the leaves withered rapidly, the plant growth became weak, and the flowers could not be formed. The supplement of manganese sulfate can be improved.

8. Zinc deficiency. Auxin in flowers is destroyed, plant growth is inhibited and diseases occur. Good zinc nutrition can enhance the resistance of plants to fungal diseases. Supplement of zinc sulfate, zinc oxide, zinc chloride, zinc carbonate to improve.

9. Lack of sulfur. Caused by chlorosis, the veins of flowers are yellow, but the mesophyll remains green, which can be different from the symptoms of magnesium deficiency and iron deficiency. Red withered spots begin to appear at the base of the leaves, usually the top leaves of flower plants suffer early, the leaves are strong and thick, and the branches are thin and lignified.

10. Lack of trace elements. The growth and development of flowers have a great demand for nitrogen, phosphorus, potassium, calcium, magnesium and sulfur, but less for iron, manganese, zinc, copper, boron, selenium, molybdenum and so on. However, the lack of trace elements will also be disadvantageous to the growth and development of flowers. Therefore, it is necessary to apply micro-fertilizer properly in order to ensure that the flowers are always bright.