Fertilizing flowers also depends on "flower color".

Artificial cultivation of potted flowers needs to pay attention to fertilizing flowers, but fertilization also depends on the specific symptoms of flowers, when flowers lack of different fertilizers, they will show different symptoms. Therefore, before fertilizing flowers, we need to pay attention to the symptoms of flowers for scientific fertilization.

Tulip

When nitrogen deficiency, the plant growth potential is weak, the leaf color is light green, the basal leaf is yellow or light brown; when phosphorus deficiency, the leaf is blue-green and purplish; when potassium deficiency, the old leaf is light green, the leaf tip is narrow, but the leaf vein is still green, generally does not wither. Nitrogen, phosphorus and potash fertilizers should be supplemented according to specific conditions.

If long-term iron deficiency, leaf tip, leaf edge will gradually wither and expand inward, but the big leaves still remain green. At this time, 0.05% to 0.1% ferrous sulfate solution should be sprayed on the leaf surface.

In the case of magnesium deficiency, the old leaves yellowed inward from the edge of the leaves, the veins of the leaves were still green, and the leaves appeared yellow stripes and wrinkles. In the later stage, the leaves often withered, the small leaves led to small flowers and light color, and the plant growth was inhibited. 0.2% to 0.4% magnesium sulfate solution should be sprayed 2 to 3 times.

When calcium is deficient, the terminal bud is easy to die, the leaf tip and leaf edge die, the leaf tip often bends into a hook, and the root system is necrotic. In severe cases, the whole plant withered. At this time, 0.2% to 0.4% lime water should be irrigated, 20 to 30 milliliters per plant each time, 2 to 3 times in a row.