First, the seedling is a tender bud that grows from the bud point of sweet potato, so the disease-free sweet potato should be selected first.
2. Sweet potato is a tropical crop, which is suitable for planting in the hot southern region. If you want to grow your own, you can cultivate sweet potato vines in March and April. Then wait until May and June before transplanting into the field.
Third, put healthy sweet potatoes into the sink and wash them. Then everything was halved. If the sweet potato is particularly big, cut it into three or four pieces.
4. Use an open bottle or cup and fill it with water, so that the sweet potato is half immersed in the water and half exposed in the water. The bottle mouth or cup mouth should be big enough to hold sweet potatoes, and the whole bottle should be filled with water.
5. Soak the sweet potato in water. ? Insert 4-5 toothpicks on the outside of the sweet potato at equal intervals, put the sweet potato incision down on the bottle mouth filled with water, let the sweet potato hang on the bottle mouth with those 4-5 toothpicks, and half of it is immersed in water.
Sixth, give light and temperature. Move the bottle of sweet potato to the sunny windowsill.
7. Wait for 2-4 weeks for buds with leaves to begin to grow at the top of sweet potatoes.
Eight, after the sweet potatoes are covered with seedlings, carefully pull them down one by one by hand. They have no roots yet, only small leaves.
Nine, put some water in the bowl, about 3 cm below, depending on the number of sweet potato seedlings. Put the sweet potato seedlings in a bowl and let their bases soak in water. Until a few days later, the roots grow from the bottom.
After ten, two or three days, the sweet potato should grow roots. Pour out the water in the bowl and take out the sweet potato seedlings to plant.
Eleven, sweet potatoes need more space than other horticultural vegetables. Each hole is 30-60 cm apart. The depth from the base of the plant to the root of the tuber is 3 cm.
Twelve,? Put the sweet potato seedlings into the pre-dug pit one by one, and cover the stems with about 1.5cm soil. The leaves of sweet potato will grow vines, while the roots will grow tubers at the depth of 15-30 cm in the soil. ?
XIII. Cover sheet. Cover sweet potatoes with plastic film to protect them in cold weather. This will also help to prevent the growth of weeds, prevent the excessive growth of sweet potato vines and rob the tubers of nutrients.
Fourteen, sweet potatoes just planted, need a lot of water. As time goes on, they should water less until they water it only once a week. Start watering every day, and then reduce the number of watering times every week.
Fifteen, sweet potatoes need a long growth period and will not mature until early autumn. Continue watering and weeding every week to make plants grow healthily.
Sixteen, after planting 120 days or so, sweet potatoes should have reached full maturity. If possible, delay the harvest time of sweet potato (before first frost) as much as possible, because it will grow bigger and more delicious tubers.