Potato (potato) is a crop that is used for both food and vegetables. The nutritional value is very high. Recently, when we investigated Lutai Village in Sanhe Town, Yingcheng City, Hubei Province, we learned about 4 mu of potato in Lumaolin's family, and the income per mu is nearly 5,000 yuan. . Some farmers who also grow potatoes, some only charge 2000~3000 yuan, and some even lower. The visual effect is good, the potato with high quality is more effective, and the benefit of individual shaped potato is greatly reduced. In addition to the variety selection, the reason for the occurrence of heterotypic is largely related to the level of cultivation management, especially the application of potash.
We also found some potato farmers in Yingcheng, Yunmeng County, Hubei Province, and some potato cakes have large potato chips. They can be cut open to see that there are hollows, and some farmers have potato chips. There are many potato chips or nodular potato chips, and farmers have reflected the green potato chips. Farmers’ friends do not know how these deformed potato pieces occur, and they do not know how to solve them.
Although the proportion of shaped potato chips is small, it occurs every year. Through investigation and analysis, it is found that most of the hollow potato produced is a large individual potato block. Generally, the fertilizer and water conditions are good, the planting density is very thin, or the land with insufficient potassium fertilizer is more. This is because, during the process of continuous expansion of the potato tubers, the nutrients in the middle part are converted and utilized again, the dry matter is reduced, and voids are formed. The starch content around the cavity is reduced, and the quality of the cooked food is hard and unpleasant. The multi-headed potato or the squamous potato is mainly in the process of growth of the potato, encountering high temperature and drought, and its development is inhibited.
When the ecological environment turns better, it will resume growth, and the small potato block will continue again. This is often called “secondary growthâ€, and such potato tubers have poor consistency. The green-headed potato is mainly covered with shallow soil when planting, or a large amount of potato is not timely cultivated, and the sun shines directly onto the potato block. Such potato cake contains solanine, which is poisoned when eaten by humans and animals. The above-mentioned shaped potato has both affected yield and reduced quality, resulting in a decrease in farmers' income.
To this end, in the potato production, measures must be taken to address the causes of the shaped potato chips. For the problem of easy occurrence of hollow potato, the first is to appropriately increase the density, medium fertility of the field, planting about 4,500 plants per acre to control the infinite increase of potato space; second, the appropriate amount of potassium fertilizer, per pot of potassium fertilizer 10~15 kg. According to the agricultural scientific research department, for every 1000 kg of potato produced, it needs to absorb 4.84 kg of nitrogen, 2.24 kg of phosphorus and 10.34 kg of potassium.
Potassium is important for the growth and development of potato. It can increase the content of starch and vitamins in tubers, promote the accumulation of photosynthetic products in tubers, enhance the resistance of plants to cold and storage, and greatly increase the proportion of high quality potatoes. For multi-headed potato or nodular potato, one should choose early-maturing or mid-maturing early varieties that are not prone to "secondary growth"; second, try to avoid the high temperature period in the planting period.
Third, we must choose the field cultivation with better irrigation and drainage conditions. When the high temperature and drought are coming, it is convenient to resist drought and reduce the temperature in time. Especially when entering the expansion stage of potato chips, we must immediately resist drought and ensure the normal growth and development of the potato. For green potato, first, pay attention to the fact that the soil cannot be covered too shallow when planting, or the soil is not high; second, it can cover straw or other straw hulls between rows or bauxite; third is not suitable for long-term storage after harvesting potatoes. Exposure in high light.
This article URL: Increased application of potassium fertilizer to prevent malnut (potato) potato malformation
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