Key points for efficient planting of sweet potato
Have you eaten the sweet potato? The sweet potato can be eaten raw and cooked, which is sweet and refreshing. The sweet potato is usually planted in the south in the spring and harvested in the autumn. So how do high-yield cold potatoes be planted?
1. Land selection and land preparation
The roots of the sweet potato are swollen and rich in water, so if you choose the sowing area, the soil must be loose and deep, moist and close to the water source. Irrigation is convenient, generally in a more sunny place. It is beneficial to the growth of roots and the absorption of water and nutrients. Sunning can also increase photosynthesis and increase the sugar content of roots. Before planting, turn the ground, cultivate, level the land, water the water, spray certain chemicals to avoid root infection.
2. Seeding seedlings
The sweet potato seed skin is thick and hard. In order to germinate early, it can be germinated in warm water before sowing, so that it grows faster after the ground. However, the sweet potato itself is tenacious and can be broadcast live in warm areas. Live broadcast can enhance the adaptability and growth of the seedlings. The seeding density should be reasonable, and they cannot rob each other of the growth space. If the seedlings need to be thin, the disease, and the yellowing seedlings will be removed after the emergence of the seedlings, but if the field is planted directly, it is only necessary to set the spacing between the rows and the seedlings.
3. Control fertilizer and water
A small amount of water can be poured once every three days before emergence to maintain a 60% wetness. After emergence, the fertilized water can be applied once to promote growth, and then fertilize water once a week until the flowering. It is not watered during the flowering period, and it is necessary to apply compound phosphorus and potassium fertilizer plus trace element fertilizer to assist in reproductive growth. During the expansion period, a large amount of water is needed to maintain the root water content and the nutrients produced by the transport leaves. It can be watered once every 5 days, but in the case of dry soil, it is generally necessary to keep the soil surface below 2 cm moist. The surface layer is dry and not susceptible to disease. Add compound fertilizer to balance leaf root growth balance.
4. Racking
When the vines grow out of the vines, they begin to erect. The truss is designed to allow the plants to have enough room for growth and to receive enough sunlight to avoid squeezing. When the summer is long, the main flowering vines should be left and the excess branches should be trimmed to reduce the consumption of nutrients.
The above is the key point of planting sweet potato. Do you have any help for you? If you have more comprehensive planting technology content, you can share it!
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