How to judge whether flowers are nutritious or not?

In order to make flowers grow and blossom well, there must be enough nutrition as a guarantee. Generally speaking, if a certain nutrient element is insufficient in the process of flower growth and development, this kind of nutrient deficiency will appear on the plant, that is, there will be a certain disease on the plant. If we can master the diagnosis of this nutritional deficiency in family flower cultivation, we can prescribe the right medicine and supplement fertilizer to make the potted flowers grow healthily and healthily again.

Here is an analysis of the symptoms that plants may show when they are deficient in several major nutrient elements:

First, nitrogen deficiency: the leaves of the plants are yellow or even dry, the leaves are small, and the plants are thin. The stem is thin and broken, and the number of flowers is rare.

Second, phosphorus deficiency: dark green leaves and slow growth. The lower leaves are yellowed between veins, often purplish, especially on the petiole, the leaves are caducous. The flower is small and few, the flower color is not good, the fruit development is poor.

Third, potassium deficiency: there are disease spots in the lower leaves, and dead parts often appear at the tip and edge of the leaves. The yellowing part extends from the edge to the middle, and then the edge part turns brown and shrinks downward, and finally the lower leaves and old leaves fall off.

Fourth, magnesium deficiency: lower leaf yellowing, which often appears in the late stage, yellowing appears between leaf veins, leaf veins are still green, leaf edges reverse upward or downward to form wrinkles, and withered spots often appear between leaf veins in one day.

Fifth, calcium deficiency: the tip and edge of young leaves are rotten, and the tips of young leaves often form hooks. The root system died before the above-mentioned diseases appeared. Terminal buds usually die.

Sixth, iron deficiency: the disease occurs in the new leaf, the leaf vein yellowing, the leaf vein still remains green. Plaques don't appear very often. In severe cases, the leaf margin and leaf tip are dry and sometimes expand inward, forming a larger area, and only the larger leaf veins remain green.

Seventh, manganese deficiency: the disease occurs in the new leaf, the disease spot usually appears, and distributes in the whole leaf surface, the very fine leaf vein still maintains the green, forms the fine reticulation. The flowers are small and bad in color.