Analysis of the Causes of Low Potato Yield and Solutions
Potato, also known as the potato, is a vegetable we commonly eat in daily life and is distributed throughout the country, but as the planting area has increased, many farmers have experienced low yields, seriously affecting their income. So what are the causes of low potato yield? How should it be solved? Let's take a look together with Qinnong.com.
1. Seed potato quality problems
At present, few potato growers nationwide use virus-free seed potatoes, which leads to a high incidence of viral diseases during potato cultivation, and once the disease occurs it is difficult to cure, causing reduced yield. In addition, using potatoes that have been planted for many years as seed and not introducing new seed leads to continuous degeneration of the seed potatoes, and also makes diseases more likely to occur, causing low yield.
Solution: When selecting seed potatoes, try to choose virus-free seed potatoes, and the selection of seed potatoes must be strictly regulated; potatoes that have been planted for years should not be used as seed.
2. Improper fertilization
When planting, many farmers apply only chemical fertilizers and rarely apply organic fertilizers or farmyard manure in order to save on planting costs, and the amount of fertilizer applied is also seriously insufficient, causing potatoes to lack nutrients during growth, preventing normal growth, and thus leading to low yield.
Solution: Be sure to apply sufficient fertilizer; generally the application rate is 250-400 kg per hectare. Also, when fertilizing, try to choose farmyard manure and organic fertilizer combined with chemical fertilizers to ensure the nutrients needed for potato growth.
3. Temperature causes
Potatoes have certain temperature requirements during germination, growth and tuber formation. During germination, the temperature needs to be kept at 7-12 degrees; during the planting and growth stage, the most suitable temperature for growth is 18-22 degrees, and once the temperature exceeds 35 degrees or falls below 7 degrees, growth will stop; when the temperature is below minus 3 degrees, the plants will freeze to death; during tuber formation, the most suitable temperature is 16-20 degrees. When the temperature difference between day and night is large, nutrient consumption is reduced, which can increase yield to a certain extent, but if the nighttime temperature is higher than 25 degrees, growth will stop, causing reduced yield.
Solution: Therefore, be sure to follow the temperature requirements for potato growth; the temperature must not be too high or too low. During tuber formation, if the day-night temperature difference is small, greenhouse technology can be used to increase the temperature difference: seal the greenhouse during the day to raise the room temperature, and strengthen ventilation at night to lower the room temperature.
4. Pest and disease causes
Pests and diseases have a huge impact on potato quality and yield. According to survey data, using chemicals to prevent disease increased yield by 34.7% compared with no prevention, showing the harm of pests and diseases to potato yield. In addition, when planting in mountainous areas, damage from the 28-spotted ladybird is more serious, and during the weedy period, weeds compete with the plants for nutrients. In addition, rodent damage to potato yield should not be underestimated.
Solution: The prevention and control of pests and diseases during planting must not be neglected; strengthen daily management, apply more phosphorus and potassium fertilizer, improve plant disease resistance, and deal with pests and diseases promptly when found, applying the right treatment.
The above are the causes of low potato yield and solutions brought to you by Qinnong.com. We hope it can help you. If you want to learn more, please stay tuned to Qinnong.com.