The causes and Preventive measures of the latest cracking of Potato skin
Potato is one of the favorite foods of many people, and it is also an important food and vegetable in our country. It is widely planted in the south of our country. People who have experience in growing potatoes may know that potatoes may crack when they are planted, so why do they crack? The pro-agricultural network will introduce it to you today.
I. the reasons for the cracking of potatoes
1. The sand and gravel content is too high
When the content of sand and gravel in the soil is too high, it is easy to scratch on the surface of potato tubers. Scratches will gradually deepen as the tuber expands, and to a certain extent, the epidermis will crack. In addition, when the temperature is high, after continuous drought, the rhizome is suddenly watered or encountered rainfall, the rhizome forms periderm during drought, the expansion rate is slow, the plant absorbs more water when it is wet, and the tuber expands quickly, so that the periderm is broken.
two。 Temperature effect
The suitable temperature for the formation and expansion of potato tuber is 15: 18 ℃. When the temperature is suitable, the potato tuber expands rapidly, but if it meets high temperature or cooling, the outer cell division rate of potato tuber slows down, while the inner cell of potato tuber is still in rapid division and growth, which makes the growth rate of potato tuber outer layer and inner layer unbalanced, which is easy to cause the phenomenon of epidermis cracking of potato tuber.
3. Pest influence
Potato nematode disease is also one of the main causes of epidermal cracking. The disease is caused by nematode infection and damage to the tuber. after the damage, the epidermis is brown and cracked, with punctate voids or heart-shaped inside. The symptoms of aboveground diseased plants are usually not obvious at the initial stage of damage, and the seedlings are slow and weak or the plants grow slowly and short, which is similar to the symptoms of lack of water and fertilizer. with the gradual aggravation of the damage, the diseased plants appeared small spots and expanded continuously. sometimes it shows wilting or premature death at noon.
Potato nematode can be transmitted through diseased seed potato, diseased soil, diseased fertilizer, water flow, daily farming operation and so on, that is, multiple cropping of potato will provide favorable conditions for nematode harm. however, in recent years, due to the limitations of traditional planting patterns and arable land, the multiple cropping index of potato is generally high, coupled with farmers' low awareness of potato nematode control, potato nematode spread rapidly.
II. Prevention and control measures of potato cracking
The prevention and control of potato cracking is mainly to do a good job of daily planting management of potatoes, including the choice of planting soil, maintaining a stable temperature and so on. For the prevention and control of potato nematodes, experts suggest that farmers should pay more attention to the prevention and control of nematodes. In addition to taking agricultural and physical control measures, it is also necessary to combine Yinghui nematicide to control the number of nematodes in soil. Among the Yinghui line killers, Ligan sand, Yinghui Express Line, Tiandi Line, Wireless and other products are available in granules and water, which are suitable for different growth stages of potatoes. Farmers can use Yinghui nematicide granule ditch application, hole application or whole field application before potato transplanting, and the duration is as long as 2-3 months. If the potato is harmed by nematode disease during the growing period, Yinghui nematicide can be used to irrigate the root and flush it with water.
The above are the causes of potato cracking and the relevant prevention and control measures introduced to you by the pro-agricultural network. The potato cracking phenomenon has greatly damaged the economic interests of farmers and has become a problem that has been perplexing many farmers for a long time. I hope this article can provide some help for the majority of potato farmers.
- Prev
The latest prevention and control methods of balsam pear virus disease
Balsam pear is a dish that we often eat in our daily life. it is rich in nutritional value, has the effects of heat-clearing and detoxification, nourishing beauty and tender skin, and has been planted in the north and south of our country. In the process of growing balsam pear, virus disease is one of the most common diseases.
- Next
The latest symptoms and control methods of brown streak of lotus root
Brown streak of lotus root, because its lotus leaves show round to irregular faded green macula or brown dead spots, also known as black spot or lotus leaf spot, although it only harms the leaves, but in serious cases, it will cause the whole lotus root field except the leaf veins to be covered with disease spots.
Related
- A course of planting techniques and methods on how to grow carrots
- How to plant the latest tulips?
- Is it better to pick tea in the morning or in the afternoon? When is the best time for tea to be picked? what is the third or fifth tea?
- Launch Yuanxiao Happy combination Haocha + Tea Yuan healthy Taste
- Penghu Tourism "Fireworks 20 Parade with You"
- 2022 West Lake Happiness holds "Digital Revitalization Voucher" and draws iphone13 and laptop.
- Banqiao Fuzhou social houses are designed to change start-up combined with police elimination to create a safe and livable environment
- The convenient measure of "mechanical weeding" in Xinbei has been abused and the Agriculture Bureau has imposed heavy penalties on the illegal land consolidation.
- Changgeng University Joins Hands with Four Memory Factories to Rescue Memory Talent Shortage
- The list of Taiwan's top 100 MVP managers is listed by the Director-General of the Farmers' Association of Sanxia District.