1、 Growth environment

Yam mainly grows in valleys and hillsides between 150-1500 meters above sea level. It likes light. Long-term light can make its branches and leaves more lush, but it is not conducive to the development of tubers. Therefore, it is necessary to control the light time for artificial planting. The suitable temperature for this plant in the seedling stage is 15-20 ℃, and the adult plant should grow in the environment of 25-28 ℃. If the temperature is lower than 20 ℃, the growth of the plant will slow down

2、 Soil requirements

Yam is generally planted in deep soil layers, because its tubers grow vertically and can grow up to about 1 meter at most. If the soil is too shallow, the growth will be limited. Only some flat and massive species can be planted in shallow soil. It should be noted that the loose and fertile soil can not only help the root breathe, but also provide nutrients for its growth

3、 Planting method

1. Lingyuzi: lingyuzi grows on the stem and vine of yam. It is its plant bud and can be used for reproduction. Generally, when harvesting, they need to be collected and stored in wooden boxes, but rats should be prevented and ventilation should be paid attention to. In addition, one year's cultivation is required for breeding with spare seeds, so as to obtain root tubers for sowing

2. Lutou: Lutou is a section at the top of yam tuber with terminal buds. It is usually cut off when harvesting and kept in a wet place. Wait until spring, plant the reed head into the soil, and after proper watering, it can germinate and grow into new plants. It should be noted that the reed head used for many years will deteriorate, so it is usually updated every 2-3 years