How to grow sweet potatoes by hydroponics

The specific operation includes the following steps:

First, the seedling is a tender bud that grows from the sweet potato bud point, so it is necessary to select the disease-free sweet potato first.

second, sweet potato is a tropical crop, so it is suitable for planting in the southern region with hot weather. If you want to plant it yourself, you can cultivate sweet potato vines in March and April. Then wait until May and June before transplanting into the field.

Third, put the healthy sweet potatoes into the sink and wash them clean. Then everything is in half. If the sweet potato is particularly big, cut it into three or four pieces.

fourth, use an open bottle or cup and fill it with water, so that the sweet potato can be half immersed in the water and half exposed to 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, and let the sweet potato hang on the bottle mouth with those 4-5 toothpicks, half of which is immersed in water.

sixth, give light and temperature. Move the bottle with sweet potatoes to the sunny windowsill.

7. Wait for 2-4 weeks for the buds with leaves to start growing at the top of sweet potato.

8. After the sweet potatoes are covered with seedlings, carefully pull them off one by one with your hands. They have no roots yet, only small leaves.

9. Put some water in the bowl, about 3 cm or less, depending on the number of sweet potato seedlings. Put the sweet potato seedlings in a bowl and let their bases immerse in water. Until a few days later, the roots grow from the bottom.

after 1, 2-3 days, sweet potatoes should grow roots. Pour out the water in the bowl and take out the sweet potato seedlings for planting.

eleven, sweet potatoes need more space than other gardening vegetables. Each hole is 3-6 cm apart. The depth is 3 cm from the base of the plant to the root of tuber.

12,? Put the sweet potato seedlings in the pre-dug holes one by one and cover the stems with about 1.5 cm of soil. The leaves of sweet potatoes will grow vines, while the roots will grow tubers at a depth of 15-3 cm in the soil. ?

XIII. Cover the film. Protect sweet potatoes in cold weather by covering them with film. This will also help to prevent the growth of weeds and prevent the excessive growth of sweet potato vines and rob the tubers of nutrients.

14. When sweet potatoes are first planted, they need a lot of water. As time goes on, they should be watered less until they are watered only once a week. Start watering every day, and then reduce the number of watering every week.

15. Sweet potatoes need a relatively long growth period, and they can't be harvested until early autumn. Continue watering and weeding every week to make plants grow healthily.

XVI. The sweet potato should have reached full maturity about 12 days after planting. If possible, delay the harvest of sweet potatoes (before the frost) as much as possible, because it will grow bigger and more delicious tubers.