Management of four important growth stages of sweet potato
Crop growth is always divided into several stages, and several stages are very important. Take sweet potato to understand several important growth periods, which is very helpful for high-yield management of sweet potato. First, the sweet potato roots slow seedling period This stage generally refers to the rooting of the roots from the seedlings inserted into the soil, the new seedlings grow on the ground seedlings, the seedlings can grow independently, and most of the seedlings grow from the leaf axils. Generally, this stage of spring potato takes about 30 days. Due to the high temperature, the roots are formed quickly and the seedlings grow fast. This period takes about 15 to 20 days. Second, sweet potato branching and potato During this period, the root system continued to develop, the axillary buds and the main spread were long, and the number of leaves increased significantly. The main vine grows fastest, and the stems and leaves begin to cover the ground to seal the ridge. At this time, the adventitious roots in the lower part of the ground have been differentiated into small potato pieces, and the number of potatoes in the late stage of the potato is basically stable and no longer increases. Spring potato needs 35 to 70 days in this period, and summer potato takes 25 to 35 days. Third, the sweet potato stems and leaves long This stage refers to the beginning of the stem and leaf covering the ground to the highest peak of growth. During this period, stems and leaves grow rapidly, and the growth amount accounts for 60% to 70% of the total growth period. With the growth of stems and leaves, photosynthetic products are continuously transported to the roots to make the roots obviously hypertrophic and weight gain, and 30% to 50% of the total weight is generated at this stage. The growth of stems and leaves accelerated, and the increase of leaf area reached the highest peak. At the same time, the new and old leaves are alternately updated, and the number of newly grown leaves and the number of yellow leaves reach a basic balance at the end of this stage. The time required for this period, the spring potato is 65 to 100 days after planting, and the summer potato is 40 to 70 days. Fourth, sweet potato stems and leaves decline the rapid expansion of potato chips Stem and leaf growth from the Shenghua down to the harvest period, centered on potato tubers. The stems and leaves began to stop, the leaves turned from dark to light, and the lower leaves turned off. The above-ground assimilation substance accelerates the transportation to the potato block, and the growth rate of the potato block is increased by 40%~50%, and the high is 70%. The accumulation of dry matter in potato tubers increased significantly and the quality was significantly improved. In general, understanding the growth stages of sweet potatoes, the scientific management of sweet potato cultivation, the increase in sweet potato yield and quality have a significant role to play. For the wonderful pictures and hot comments about sweet potato planting technology, you may be interested in the following recommended contents of Hui Nong. Welcome to read. Tetanus Vaccine,Hepatitis B Vaccine For Adults,Tetanus Booster,Td Vaccine FOSHAN PHARMA CO., LTD. , https://www.foshanmedicine.com
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