The traditional sweet potato seedlings are buried in the whole soil of the seed potatoes, causing the lower half of the sweet potato to germinate, and reduce the emergence rate. In the production process, we have explored a technology for the first replanting of sweet potatoes, which not only allows the germination rate of the seed potatoes to reach the highest level, but also makes the operation simple and requires no investment. The specific method is as follows.
Before the sweet potato is sown, the seed potato is cut longitudinally from the middle, and the cut surface is smeared with 5% concentration of Weinel sodium solution (available from the chemical shop) within 5 minutes, and then the cut side is placed in the sun and cut in the sun. ~ 2 hours to promote healing, in the case of cloudy days must be dry for 2 days, and then ditch planting. It should be noted that in order to ensure that the germination time and the strength of the seedlings of the buds of the heads and tails of the sweet potatoes are consistent, when placing the seed potatoes, the section must be downwards and the head of the seed potatoes should be lower than the tail. After covering the soil, it can be managed by conventional methods.
Experiments show that this method not only completely eliminates the germinal dead angle on the underside of the sweet potato, and increases the seedling production rate of the seed potato by more than 30%, but also greatly improves the uniformity of the seedlings and lays the foundation for the high quality and high yield of sweet potato.
Before the sweet potato is sown, the seed potato is cut longitudinally from the middle, and the cut surface is smeared with 5% concentration of Weinel sodium solution (available from the chemical shop) within 5 minutes, and then the cut side is placed in the sun and cut in the sun. ~ 2 hours to promote healing, in the case of cloudy days must be dry for 2 days, and then ditch planting. It should be noted that in order to ensure that the germination time and the strength of the seedlings of the buds of the heads and tails of the sweet potatoes are consistent, when placing the seed potatoes, the section must be downwards and the head of the seed potatoes should be lower than the tail. After covering the soil, it can be managed by conventional methods.
Experiments show that this method not only completely eliminates the germinal dead angle on the underside of the sweet potato, and increases the seedling production rate of the seed potato by more than 30%, but also greatly improves the uniformity of the seedlings and lays the foundation for the high quality and high yield of sweet potato.
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