High-yield planting techniques of sweet potato: planting methods and management techniques of high-yield sweet potato, and how to grow sweet potato to achieve high yield

Sweet potato is sweet potato, is one of the cereals in our country, with the artificial health awareness strengthened, sweet potato market is much better than before. Although planting sweet potatoes is simple, it takes some effort to get high yield. Let's take a look at the detailed introduction together with Xiaobian.

1. Soil preparation and fertilization

Sweet potato root plant, suitable for growth in deep soil layer, loose soil, good permeability of the soil, before planting to deep soil layer, improve its permeability, so conducive to root swelling, improve yield. Tilling is generally 30-40 cm, can be ridged cultivation, if the fertility is thin can be flat or low ridge cultivation. However, sweet potato is generally planted on sandy soil and has insufficient fertility, so it needs to be applied with base fertilizer to obtain high yield. Generally, 2000-2500 kg of decomposed organic fertilizer is applied per mu, and 50 kg of nitrogen, phosphorus and potassium compound fertilizer is matched.

2. Seed selection and cultivation

We should select high-quality varieties with high yield and strong disease resistance, such as virus-free Beijing 553, virus-free Xushu 18, Xinnong No.1, etc. The climate and soil conditions of each region are different, so the planting time should be selected according to local conditions. Generally, the planting time is from April to May, when there is plenty of rain, the temperature is suitable, and the survival rate after planting is high. When planting, attention should be paid to planting density, so as to avoid long vine varieties, fertile plots should be planted sparsely, while short vine varieties, fertile plots should be planted densely.

3. Intertillage and weeding

In the growth period, proper intertillage can loosen the soil, increase permeability, increase ground temperature, and eliminate weeds. Generally, intertillage and weeding should be carried out many times in the seedling stage to promote seedling growth, but intertillage should pay attention to depth, so as not to cause root damage and affect the normal growth and development of plants. Long vine varieties in the growth to a certain extent, to timely pick the core, so that its stem vine stout, multi-branched, there is a yield-increasing role. When tubers expand, control the vines to avoid excessive growth of plants and affect yield.

4. Fertilizer and water management

In tuber expansion, some areas are dry and rainy, while some areas are high temperature and rainy, these environments are unfavorable to the growth of sweet potato, dry and rainy areas should be watered in time to avoid premature aging of stems and leaves, promote tuber expansion; and high temperature and rainy areas should do a good job of drainage measures to avoid water rotten roots or rapid expansion of root tuber, unfavorable quality. When expanding, can spray swelling element and foliar fertilizer, promote nutrition to want root tuber transfer, accelerate nutrition accumulation, yield increase effect is obvious.

The above is sweet potato high-yield cultivation technology, hope to help you, want to know more about the relevant knowledge, please pay attention to us.