The potato can germinate when the ground temperature is not lower than 4 °C, and the young shoot can grow at 5 °C ~ 7 °C. Generally, the temperature of the processed potato pieces before sowing has reached about 6 °C. If the premature temperature is lower than the temperature of the shoots, the shoots stop growing after sowing; if the ground temperature after sowing can meet the growth requirements of the shoots, the sudden low temperature causes the shoots to stop growing, and the nutrients in the shoots continue to be supplied. Then, the nutrients are stored to make the young buds expand and grow into small potato pieces, that is, dream potato. The prevention measures are as follows: 1. Covering the mulch film. Covered with plastic film or double film, it can not only improve the ground temperature, but also prevent the occurrence of dream potato, but also the morning market. 2. Sowing at the right time. According to the requirement that the temperature of 10 cm soil layer is stable at 5 °C during sowing, and the frost damage is not required after emergence, the open field potato in Hanzhong Basin should be sown in late February, and the filmed potato should be sown in mid-January. Sowing in early December is appropriate. 3. Implement ridges. Ridge cultivation can improve the ground temperature and improve the permeability of the soil. 4. Appropriate deep broadcast. In order to prevent the influence of cold current on the potato, it can be properly spread (12 to 15 cm in depth) to prevent the occurrence of dream potato. 5. Covering farmyard manure. After the buds are planted, the farmer's fertilizer is concentrated on the ridges to cover the buds, and then the soil is covered. Disclaimer: Some articles on this website are transferred from the Internet. If legal rights of third parties are involved, please inform this website. phone Packaging Materials,Prefillable Syringe,Pharmaceutical Packaging ,Food Packaging Shandong Qidu Pharmaceutical Co., Ltd. , https://www.qdyypharma.com