Glycyrrhiza

Consultation: I am a Minqin farmer, planting 50 acres of licorice, this year is the second year, the growth is poor, the leaves are incompletely eaten by the insects, how to solve?

Answer: 1. If the licorice is planted on the thin and acidic soil, it is necessary to apply the slaked lime as early as possible. The application of about 15 kg per mu can not only supplement the calcium fertilizer, but also promote the growth of licorice, and also change the acidity and alkalinity of the soil. . In addition, according to the growth of licorice, 15 to 20 kg of phosphorus diammonium is beneficial to promote the growth of licorice.

2. The licorice seedlings are early, perennial, the field density is high, and the degree of stagnation is high, which is conducive to the occurrence of diseases such as rust, powdery mildew and leaf spot disease, so it is necessary to prevent it early. It can be prevented by three bacteria such as stone sulfur mixture, triadimefon, triadimefon, chlorothalonil and methyl thiophanate.

3. Licorice seed The bee lays on the flower when the licorice is flowering. After hatching, the seed is foraged and emerged in the seed. The adult fly out of the seed. There is a small hole in the seed, and the seed completely loses its germination ability. Apply pesticides early to prevent them.

4. 跗 角 萤 萤 is a kind of pest that eats the leaves of licorice. When the worm occurs seriously, all the licorice leaves can be eaten. Early prevention.

5. The small green leafhopper and the big green leaf thorn suck the juice of the young leaves of the licorice, causing the leaves to turn yellow and dry, affecting the growth of licorice, and can be prevented by insecticides.

6. Spray foliar fertilizer, generally spray 2% potassium dihydrogen phosphate 60 ~ 80 kg, can also use foliar fertilizer such as amino acid, spray leaf fertilizer is simple to operate, can promote growth, but also improve quality, small fee And the effect macro, it is recommended to use.

7. Licorice is drought-tolerant, but excessive drought will inhibit the growth of licorice, and artificial replenishment can be carried out.

Through the above measures, it can promote the growth of licorice and prevent the leaves from being fed, which is an important measure to improve the quality of licorice production.