In Japan, it is planted as soon as the rainy season begins. Sweet potato is a crop that can grow well in any soil. Sand Sandy soil It grows well in fertile soils and can be fertilized and replanted in a short period of time. It is better to plant on land where other crops have been planted. Sweet potato has been called an “honorable crop of environmental protection”.
Select the site and plow. Grounding and line drawing must be done. It is best to combine before planting. Good ventilation and water retention capacity. Dryness If moisture is maintained, root growth and yield can be improved. The addition of lime can increase the absorption of potassium and increase the yield, although the yield may be slightly lower. The shell color will be more beautiful. Sweet potato red is especially popular with consumers.