What are the symptoms of nutrient deficiency in flowers? Learn the right way to deal with it
1. Nitrogen deficiency. Growth is stunted, leaves are small and pale, sparse and prone to dropping, which affects photosynthesis. As a result, growth is poor, the plant is smaller, there are fewer branches, and the fruit is small and few. Nitrogen fertilizers such as urea and ammonium sulfate need to be applied promptly.
2. Phosphorus deficiency. Growth is inhibited, the plant is short and small, the leaves turn dark green, dull gray with no luster, develop purple spots, and finally wither and drop off. Apply monopotassium phosphate, superphosphate, diammonium phosphate, etc.
3. Potassium deficiency. Brown spots appear on the leaves, abnormal wrinkles form, the leaf margins curl, and finally they scorch, looking as if they have been burned by fire. Apply monopotassium phosphate, potassium sulfate, potassium chloride, etc.
4. Calcium deficiency. Root growth is inhibited, the roots are numerous but short, the cell walls become mucilaginous, and the root tip cells are damaged, leading to rot. Apply calcium sulfate, superphosphate, etc.
5. Magnesium deficiency. It causes chlorosis, yellowing disease and albinism. Flowers deficient in magnesium usually begin to lose green from the lower leaves, showing yellowing that gradually spreads to the upper leaves; at first the veins remain green, then the veins turn yellow, and soon the lower leaves turn brown until they wither and die. Applying magnesium sulfate or magnesium oxide can improve this.
6. Iron deficiency. When iron is deficient, the young leaves at the upper part of the shoots are affected, while the older leaves at the lower part remain green. When iron deficiency is mild, the mesophyll tissue of the flower leaves turns light green while the veins remain green; when severe, the young leaves all turn yellow-white and develop necrotic spots, gradually scorching and dropping off. Apply ferrous sulfate solution to improve this.
7. Manganese deficiency. When flowers are deficient in manganese, the leaves first turn pale with a hint of gray, then brown spots appear at the leaf tips, gradually spreading to other parts of the leaf, and finally the leaves wither rapidly, plant growth weakens, and flowers cannot form. Applying manganese sulfate improves this.
8. Zinc deficiency. The auxin in the flower plant is destroyed, plant growth is inhibited, and disease occurs. Good zinc nutrition can enhance a plant's resistance to fungal diseases. Apply zinc sulfate, zinc oxide, zinc chloride or zinc carbonate to improve this.
9. Sulfur deficiency. It causes chlorosis; the veins of the flower leaves turn yellow, but the mesophyll tissue still remains green, which can be distinguished from the symptoms of magnesium and iron deficiency. Red necrotic spots begin to appear from the base of the leaf. Usually the leaves at the top of the flower plant are affected early, the leaves are firm and thick, and the branches are thin and lignified.
10. Trace element deficiency. The growth and development of flowers have a relatively large demand for nitrogen, phosphorus, potassium, calcium, magnesium and sulfur, and a relatively small demand for iron, manganese, zinc, copper, boron, selenium, molybdenum, etc. But a lack of trace elements is likewise harmful to the growth and development of flowers. Therefore, trace fertilizers must be applied appropriately to ensure that the flowers bloom brightly all the time.