In the fourth and fifth months of each year, it is the best season for sweet potato planting. At present, the high-cut seedling watering planting method is widely used in the production of sweet potato in China, and the small potato live broadcast is rarely carried out. Since the high-cut seedlings do not have roots, it is required to have a quick root, a seedling early, a seedling, a seedling, and a seedling, so as to achieve the purpose of early potato and more potato. These are related to the rooting characteristics of potato seedlings, the quality of potato seedlings, the temperature during planting, the method of planting, and the management after planting. In order to further help farmers plant sweet potatoes, on March 20, the reporter interviewed Zhu Xibing, general manager of Shaanxi Yangling Jinshu Seeds Technology Co., Ltd., and listened to him as a supporter for the majority of sweet potato growers.
Can the sweet potato seedlings without roots live?
In many areas, it is customary to pull out the seedlings from the seedbed. It is considered that the roots are easy to live. The actual sweet potato seedlings are most likely to root at the roots. As long as the temperature is suitable for two or three days, new roots can be born. The survival rate is improved. In the case of roots, I want to do all kinds of methods to keep the potato seedlings from losing water and not wilting. When the new roots grow out, the seedlings will live.
Determining the principle of suitable planting period
According to the requirements of the biological characteristics of sweet potato, when the field is planted, the soil temperature at 5 cm depth is required to be stable above 16 °C; the lower temperature can slow the evaporation of the leaf surface, but it is not conducive to hair roots. Roots, but the leaf surface evaporates faster and the leaves are prone to wilting. Spring potato usually has roots for 3 to 5 days, and is still seedlings for about 10 days. Within a certain range, the temperature is increased, the hair root is fast, and the root amount is large. At the same time, covering the mulch after planting the sweet potato can increase the ground temperature, maintain moisture, increase the survival rate, and prevent soil compaction.
The length of the potato seedlings is related to the number of soil sections
Generally, the number of potato seedlings in the soil is more conducive to survival and increase the number of potatoes. However, the number of festivals is too large, the seedlings are too long, and the potato is large and small. Generally, the number of soil festivals is more conducive to survival and increase the number of potatoes. However, the number of festivals is too large, the seedlings are too long, and the potato is large and small. It is suitable to use potato seedlings with a length of about 20 cm and 3 to 6 knots.
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