1, short cut and trim. If asparagus stems are too long, they can be trimmed properly. Prepare a sterilized sharp knife, cut off the long branches and cut off some long branches.

2. Pinch the tip to control the height. When the new shoots of asparagus grow to the ideal height, we can control the height by pinching the tips in time, which can limit the top advantage and prevent asparagus from continuing to grow and develop.

3, with the help of drugs. In view of the long tender stems of asparagus, it can also be treated with drugs. Asparagus plants can be sprayed with growth regulators such as chlorfenapyr and paclobutrazol, and the height can be controlled.

4. Reduce watering. Asparagus likes humidity. If you water it too much, it will cause vigorous growth. When new shoots are found to be too long, you can pay attention to water control and avoid watering too much.

5. Control fertilization. Too much nitrogen topdressing will cause excess nutrients and promote the rapid growth of asparagus buds. Attention should be paid to regulating fertilization, reducing fertilization amount and controlling fertilizer concentration.