Symptoms of Sunflower Nutrition Deficiency

The root cause of sunflower nutritional deficiencies

When sunflowers are not adequately fertilized or the nutrients in the soil cannot be well absorbed by the sunflowers, they will lack nutrition.

Analysis of nutritional deficiencies in sunflower

Potassium deficiency:

The plant grows slowly, the leaves turn yellow and even have small brown spots

Nitrogen deficiency:

During the seedling stage, the growth is slow, the plant is relatively fragile, the leaves are relatively small and are yellow-green or light green; if there is a lack of nitrogen in the middle of the growth period, the leaves at the bottom of the sunflower will turn yellow, the flower disk will be small, and the plant will age prematurely.

Phosphorus deficiency:

Sunflower plants and flowers will be stunted

Calcium deficiency:

Plant stems may bend

Sulfur deficiency:

The leaves and inflorescence are lighter in color, the internodes are shorter, and the plants are shorter.

Magnesium deficiency:

No chlorosis between veins

Manganese deficiency:

Leaves are network-like and chlorotic

Zinc deficiency:

The upper leaves of sunflowers will turn yellow or even die.

Iron deficiency:

The upper leaves turn yellow, but the veins remain green.

Copper deficiency:

The upper leaves and corolla are deformed