The latest sweet potato skin cracking reasons and prevention methods

Sweet potato is a kind of food crop with high yield and strong adaptability, which is widely cultivated in most areas of our country. It can not only be used as the main amount of root tuber, but also be processed into starch, alcohol and other good fodder for stems and leaves. However, the phenomenon of peeling will occur in the process of sweet potato planting, which will affect the quality and economic benefits of sweet potato. So what is the cause of sweet potato peeling? How to prevent and cure it?

First, the cause of split skin

1. Sweet potato is mainly caused by soil, it is suitable to grow in sandy soil, if it grows in clay, because of soil consolidation and poor air permeability, it will easily lead to the phenomenon of skin cracking.

2. The second is the problem of nutrients. If there is a lack of boron and calcium in the soil, the skin of sweet potato will be fragile and easily split, resulting in split skin.

3. Water is also one of the reasons for the cracking of sweet potato tuber. when the tuber of sweet potato expands rapidly, if there is too much water, it will absorb too much water and expand rapidly, but the growth rate of epidermis can not keep up with that of skin cracking.

4, in the growing period, the water is uneven, in the case of a long-term drought, suddenly and flood, there will be the same situation as above.

5. Another reason is that underground pests, especially golden needle worms, can destroy the epidermis of sweet potatoes, causing the cortex to crack and form great cracks. II. Prevention and control methods

The main results are as follows: 1. First of all, sandy soil should be selected when planting, and it is not suitable to choose the soil with heavy viscosity, easy consolidation and poor drainage.

2. Pay attention to uniform fertilization and apply sufficient basic fertilizer when planting. If sweet potato seedlings grow healthily, it is recommended to apply 1kg of potassium sulfate, 1kg of calcium superphosphate and 50-75kg of water per mu, and at least some boron and calcium fertilizer are sprayed during growth.

3. In the management of traditional Chinese medicine, pay attention to water management, timely watering during drought, keep the soil moist, promote the growth of sweet potatoes, timely drainage in the rainy season, and loosen the soil at the same time to avoid soil consolidation.

4. Attention should be paid to the prevention and control of diseases and insect pests, especially underground, which can be poisoned with 10% chlorpyrifos granules in the rainy season.

The above is the introduction of the causes and prevention methods of sweet potato peeling. I hope it can help you. If you want to know more about it, please pay attention to us.