Several manifestations of fertilizer deficiency in flowers

1. When flowers lack nitrogen fertilizer, their growth is stunted and their leaves will be smaller and duller in color. Moreover, the leaves grow very sparsely and fall off easily, which in turn affects the photosynthesis of the flowers and causes poor growth of the plants, fewer branches, and smaller fruits.

2. If flowers lack phosphorus fertilizer, their growth will be inhibited and the plants will become shorter. The leaves will become dark green but dull, develop purple spots, and eventually dry up and fall off.

3. Plants lacking potassium fertilizer will have brown spots and abnormal wrinkles on their leaves. The edges of the leaves will also curl up or even become scorched as if they had been burned by fire.

4. The growth of flowers' roots will be affected by the lack of calcium. The root system will become numerous and short, and the root tips will be damaged and rot.

5. Plants lacking magnesium can cause many diseases of flowers, such as chlorosis, green deficiency and white flower disease. The leaves at the bottom of the plant will gradually turn from green to yellow and spread upwards. The leaf veins will gradually turn yellow until the leaves die.

6. The tender leaves on the branches of flowers that lack iron will be damaged. If the iron deficiency is serious, the tender leaves will all turn yellow-white or even fall off.

7. The leaves of plants lacking manganese fertilizer gradually turn pale and then gray. Brown spots may also appear at the leaf tips and may even spread to other parts of the leaves. Until finally the leaves wither, the plant's growth is stunted and it cannot bloom or bear fruit.