1, double the field where sweet potatoes are planted, because sweet potatoes are the result of roots, so the soil where sweet potatoes grow must be rich and loose, so that the roots of sweet potatoes can breathe and absorb nutrients.

2. After improving the soil, it is to buy the vine seedlings of sweet potatoes. Select the top of the vine seedling of sweet potato to plant. Because sweet potato grows by cutting, choosing the top of vine seedling is beneficial to sweet potato rooting and germination.

3. Cut the sweet potato seedlings and bury the vine seedlings at the sweet potato cutting place with soil. After planting the sweet potato, it should be continuously fertilized and watered every day for about a week, until the sweet potato vine seedlings grow.

4. It is enough to water the water twice a week. When the vine seedlings grow to one meter long, it is necessary to turn the vine seedlings over and loosen the soil at the roots, which can improve the flowering rate and fruiting rate of the yam.