1. Choose suitable and excellent varieties
The first is the yield. As long as it can produce high yields, most of it is successful. Therefore, when planting, we must choose varieties with better disease resistance, strong splitting ability, resistance to diseases and insect pests, and good growth ability. But the most important thing is to choose a variety that is suitable for the local area. There are no small differences in different places. It is the most important thing to be able to grow purple potatoes locally.
2. Pick the right soil
Purple sweet potatoes like places with high terrain and good drainage capacity, so try to avoid depressions when planting. The fertility of the soil must also be guaranteed. After that, preparations before sowing should be carried out. Drying the seeds can improve the survival rate of purple potatoes.
3. Dig the soil
Dig the selected soil down about fifty centimeters, and the excavated soil should also be air-dried. If the soil is wet, it will provide a good living environment for the pests, and then the land will be sorted out. In this process, it can be added properly. fertilizer. The best is to use the farm's organic fertilizer, which requires about two thousand kilograms per acre. At the same time as fertilization, some phoxim can also be properly sprinkled. This fertilizer can effectively control pests in the soil.
4. Do a good job in field management
The growth of purple potatoes depends to a great extent on the management of the growers. Regular weeding and turning the ground not only ensure that purple potatoes have sufficient nutrient support, but also provide them with a loose growth environment. The weeds can be used as a nutrient for the growth of purple potatoes through certain treatments. When turning the ground, pay attention to the depth and do not hurt the root system of purple potatoes.
5. Watering
Purple sweet potatoes are plants that do not require much water, so they do not need to be watered too frequently during their growth, unless they encounter particularly dry weather. In addition, timely lifting can make their nutrient delivery system grow well, which is conducive to the growth of the underlying tubers.
6. Fertilization
In addition to the need to do a good job of base fertilizer at the beginning, purple potatoes basically do not need to be topdressed later, but if slow growth is found during the growth period of purple potatoes, then topdressing needs to be done, if not, it is not necessary. If there is too much fertilizer, it is easy to cause the purple potato to only open the upper stems and leaves, and the lower tubers are underdeveloped.
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