Which is better for sweet potato cultivation, shallow or deep cultivation?
Sweet potato is a root plant, and its growth is closely related to soil depth and cultivation methods. There are different opinions and experiences on whether it is better to grow sweet potatoes shallowly or deeply.
First, let's take a look at the benefits of shallow sweet potatoes. Shallow planting can make the root system of sweet potato more developed, because the topsoil temperature is higher and the oxygen content is also higher, which is conducive to the growth and development of the root system. In addition, the shallow soil is loose and has good air permeability, which is conducive to the respiration and nutrient absorption of sweet potato. At the same time, because the shallow soil has sufficient light, which is conducive to the photosynthesis of stems and leaves, shallow planting can make the stems and leaves of sweet potatoes more lush.
However, deep cultivation of sweet potatoes also has its advantages. First of all, deep planting can make the root system of sweet potatoes more stable, as the deep soil is tighter and can provide better support. Secondly, deep planting can increase sweet potato yields because deep soils are richer in nutrients and can provide more nutrients for sweet potatoes. In addition, deep planting also protects sweet potatoes from drought, as the moisture in the deep soil is more stable.
So is it better to plant shallow or deep? Actually, it depends on the situation. If the soil quality is poor, the nutrients are insufficient, and the humidity is unstable, it is recommended to plant deeply; If the soil quality is good, the nutrients are sufficient, and the humidity is stable, shallow planting can be used. In addition, the influence of climate, topography, and other factors must also be considered.
In conclusion, the cultivation method of sweet potatoes must be determined on a case-by-case basis. Whether it is shallow tillage or deep tillage, it is necessary to choose the most suitable method according to the comprehensive consideration of soil, climate, topography and other factors to improve the yield and quality of sweet potato.