Shandong Lunan area is also a gathering area for potato planting. This year, the potato yield of some plots here is similar to that of netizens. In other words, the potato yield is low, sweet potatoes are not produced, and potato pieces are relatively small. Some potatoes are growing well. That is to say, because there are few underground tubers and they are very small, with this problem, we visited the farmers who visited potatoes to help them understand the specific reasons and how to avoid them.
Everyone knows that potatoes like cold environment. Generally, the temperature is stable above 10 degrees, which is the most suitable for sowing. When the temperature is too low, the development of potato tuber is inhibited, and the germination is naturally slow. If the temperature of potato tuber development is not reached for a long time, the tuber will rot, resulting in irregular buds. 18 ~ 22℃ is the most suitable growth temperature for potatoes, and potatoes will stop growing when the temperature exceeds 26℃. Therefore, potatoes have strong adaptability, but only suitable temperature and humidity can germinate and germinate. In the process of potato tuber development, tuber development is inhibited under high temperature and drought conditions, so it is naturally difficult to produce more potato pieces.
In Linyi City, Shandong Province, the hometown of potatoes, the potatoes planted here are all planted in spring, and the potatoes can be harvested in about 100 days. Generally speaking, the harvest is completed before entering the summer solar term, which can completely avoid the high temperature season in summer and avoid the inhibition of potato tuber development. Therefore, before planting potatoes, Chinese farmers had better dry the buds on potato seeds or soak them in gibberellin and potassium permanganate solution for 24 hours to achieve the purpose of germination. Germination and caking not only occur early, but also avoid the problem of large and small seedlings in the later stage, achieve the purpose of early maturity, quality improvement and yield increase, and avoid high temperature weather in summer.
Adequate water and fertilizer is the key to ensure the growth of potato plants and the expansion of stems, and it is also the guarantee of high yield. Our ultimate goal is to need the necessary underground tubers, but the plants on the ground also need scientific management. The ground part is the source of swelling nutrients for underground tubers. Too strong or too weak plants on the ground will affect the development of underground tubers. Therefore, according to the law of potato growth and development, reasonable water and fertilizer management can achieve high quality and high yield.