Sweet potato soilless cultivation management
The soilless cultivation technology of sweet potato breaks the conventional sweet potato cultivation mode. The sweet potato can be grown in suspension. The first step is to grow the root system in the nutrient solution and supply the plant with sufficient water and nutrients. The advantage of potato in the air is that it avoids the one-time disadvantage of harvesting sweet potatoes and harvesting together, as long as the preserved yam can achieve continuous harvesting and high quality and high yield, and it can also be applied to root crops such as potatoes and yams.
1, pruning
In the process of growing sweet potato seedlings into trees, stalking is the key. After the transplanted sweet potato seedling grows for half a month, it will grow new shoots. At this time, it is necessary to start hanging vines. Use a rope to hang the newly emerged tree trunk on the grid, leave three or four branches at a position about one meter away from the main trunk, and leave the branch more than one meter away to leave the branch again, leaving the branches dense and thin. Branch can be removed. During the growth process, the pruning occurs every five days in the summer and every ten days in the winter.
2, top dressing
In order to enhance plant disease resistance and promote the growth of root system, it is necessary to add trace elements after hanging vines. Diluted potassium dihydrogen sulfate with a concentration of one thousandth was poured into a watering can, then sprayed evenly on the whole plant and sprayed once every two weeks.
3, flowering management
Sweet potato blossom is not a good thing, it will compete for nutrients. Under normal circumstances, we will artificially beat the flowers and reduce the waste of nutrition. Because sweet potatoes do not bloom until the light is shortened, it is possible to suppress flowering by supplementing light. Even in the summer, when it comes to cloudy days, it will take about 4 hours a day.
4, for fruit management
Unlike conventional sweet potato cultivation techniques, sweet potato trees are to be airborne. One month after transplanting, sweet potato trees can be pressed and set. The first step is to configure the nutrient soil, perlite, vermiculite, and peat ash in a ratio of 1:1:1, and mix them evenly into the hanging pot. Then select the stout vines, pull down the vines to about ten centimeters, remove the leaves, hung the hung pots on the grid, bury the vines in the nutritious soil for about two or three centimeters, and then drench the water. Next every other week, pour water once to satisfy the growth of the tubers.
5. Pest control
Since the cultivation of sweet potato trees is carried out in the conditions of the facilities, and the sweet potatoes themselves are more resistant to disease, they generally do not cause diseases. When pests occur, biological control is generally used and trapping of yellow plates is used.
6, picking
Sweet potato hung pots can be picked within a month or so, and two people are required to pick them when picking. Use scissors to cut along the pelvic floor, cut it, remove the nutritious soil by hand, then cut it along the roots of the yams, remove all the fibrous roots, and finally place the vines over the vine again. Continue to grow on it.
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