How to prevent and control the split skin of sweet potato
The diseases that cause the cracking of sweet potato are blister disease and nematode disease. Prevention and control measures: first, select disease-resistant varieties. Second, establish disease-free planting land and cultivate disease-free and strong seedlings. Seed potatoes were disinfected with warm water of 50 ℃ ~ 54 ℃ for 10 minutes. Third, carry out soil disinfection. 80% dibromochloropropane 1.5 kg to water 100 kg 150 kg per mu or 70% dibromoethane 2.5 kg to water 200 kg 300 kg per mu, ditching and spraying 20 days before planting and immediately covering soil and ridging. Fourth, crop rotation and crop rotation. The effect of rotation with peanut is better, and it can be rotated for one year. The rotation time with corn (2349, 8.00,0.34%) and sesame is longer, and 2 ~ 3 years is the best.
- Prev
Sweet potato planting is fastidious
On sweet potato, the distribution of adventitious buds was the most in the head, the second in the middle, and the least in the tail. When arranging potato seeds horizontally or obliquely on the seedbed, master the principle of head-up, tail-down, back-up and belly-down, which can increase the number of seedlings. If the large and small potato pieces are arranged in the same seedbed, the big potato emerges slowly, grows little, the potato seedling is stout and can be arranged.
- Next
Sweet potato drought-resistant cultivation tips
The method of leaving 3 leaves takes 6~7 potato seedlings, only leaves at the top are left when planting, the rest are buried in the soil together with the leaves, and the buried part should be tightly sealed. The buried sand soil absorbs heat quickly and the temperature is high. When planting potato seedlings, the tips and leaves exposed to the ground should be covered with soil. The buried soil thickness is more than 3 cm.
Related
- Where is it suitable to grow horseradish in China? it is expected to see the middle altitude horseradish in Alishan.
- How to prevent tomato virus disease reasonably? (Control methods included)
- Many people like to plant towel gourd on the balcony. What are the main points of this method and management?
- What crops can chili peppers be mixed with?
- Fertilization techniques and matters needing attention in Tomato
- What are the grafting techniques for peach seedlings in spring?
- Harm and control methods of root swelling disease of Chinese cabbage
- What are the pests of sweet potatoes? How to prevent and cure it?
- Symptoms, causes and Control methods of navel Rot in Tomato
- The cause of "Cucumber rotten bibcock" in Farmers' planting Cucumber and its Control Plan