How to prevent empty shells when planting sunflowers

Sunflower shell phenomenon

The empty shells of sunflowers are actually a common phenomenon.

There are many reasons for this phenomenon of sunflowers. If there are hollow shells on the outer ring of a sunflower, it is mainly caused by poor pollination. If the center of the sunflower appears hollow, it is due to lack of nutrition caused by insufficient water and fertilizer, which causes the hollow shell phenomenon.

When this happens to sunflowers, it is actually quite dangerous, because the empty shells will lead to reduced sunflower yields or even a total loss, so we must take precautions against the empty shells of sunflowers.

To prevent sunflowers from dying, the first thing is to ensure that the sunflowers have adequate supply of water and fertilizer, and the second is to perform artificial pollination.

Sunflower husk prevention measures

First, we must strengthen water and fertilizer management. When growing sunflowers, there must be sufficient water and fertilizer conditions. Watering should be appropriate and the fertility should be sufficient, but not excessive. Basically, when growing sunflowers, sufficient water and fertilizer can reduce the empty shell rate of sunflowers and increase yield.

The second is to carry out artificial pollination. When growing sunflowers, although you can rely on insects for pollination, in many cases, this method of pollination is not satisfactory, and it is best to pollinate artificially. When the sunflower enters the flowering period, pollination can be carried out after 2-3 days. You can use a soft-bristled brush to gently brush the flower disk, pick up the pollen from the stamens, and then brush it onto another sunflower.