Four key points of dry Pinellia ternata and winter tube

1. Check the seed stem: under normal circumstances, the tuber of Pinellia ternata begins to take root about half a month after it is planted, and sometimes the rotten seed will occur because of the low temperature, so the growth of the seed stem should be checked in time. To the place that has not emerged for a long time, you can gently pick away the soil with hands or bamboo slices, wooden sticks and so on. All the seeds and stems that have no roots or have yellow and black roots are inferior species, and should be dug up and replanted in time.

2. Waterlogging and drought prevention: if there is continuous rain in winter, the soil is easy to be waterlogged and anoxic, which is not only not conducive to the rooting of Pinellia ternata tubers, but also leads to disease and decay. Therefore, we should pay attention to dredging ditches and drainage, so that the rain stops the fields to dry. If it is dry in winter, it will lead to tuber drying and shrinking, affecting the growth of underground parts. Furrow irrigation can be adopted and the water in the ditch can be discharged in time after irrigation.

3. Remove weeds: during December in winter, ploughing and loosening the soil on a sunny day to remove perennial weeds. Weeding should be based on planing or pulling weeds to prevent injury to Pinellia ternata tubers. For plots with serious weeds, you can choose to use 1000 grams of glyphosate per mu with 60 kilograms of water per mu or 20 grams of water-free agent 150-250ml plus 50 kilograms of water per mu on sunny days.

4. Applying farm manure: before the severe cold, 2500-3000 kg per mu of rotten pig and cow manure, 50 kg of rotten cooked cake fertilizer or 75 kg of plant ash are evenly spread between the rows of the border, which can not only increase the fertilizer effect, but also keep warm and moisture. to ensure that tubers survive the winter safely.