What if the potato seedlings are too tall?
Temperature and water and fertilizer are the factors that affect the growth and height of potato seedlings. Many potatoes soar after flowering and can be controlled by drugs. For example, uniconazole or paclobutrazol can be sprayed once every seven days, twice in a row. In addition, remember to spray expander during the fruit expansion period, or the yield will not be high.
Key points of Potato Seedling Management
1. Water and fertilizer management
The growth ability of potato in seedling stage is not strong, but the speed of leaf expansion is relatively fast, especially after entering the budding stage. The number of stems and leaves will increase sharply, and then the lateral branches will begin to grow. Therefore, in order to ensure the growth of seedlings in the rosette stage, a water and fertilizer work should be carried out at the rosette stage, and the fertilizer is mainly urea. The main growth site of seedlings is stems and leaves, which is also an important period of tuber formation in the later stage. At this time, there is a greater demand for nitrogen fertilizer, we should fertilize and water early to ensure adequate nutrients and water, and promote the growth of seedlings.
2. Ploughing and weeding
Ploughing and weeding is a management work that can not be ignored in every growth stage of potatoes. Mid-tillage can effectively improve soil permeability, improve the ability of soil to absorb fertilizer, and promote the nutrient absorption of seedlings. On the other hand, the weeding work can better concentrate the nutrition on the seedlings, prevent weeds from grabbing the growth and nutrition of the seedlings, hinder the growth of potato seedlings, reduce the yield and seriously affect the planting efficiency. Therefore, when planting, we must pay more attention to avoid some irreparable losses.
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