It is not only a nutrient, but also some of them have special physiological activities. For example, heparin in the liver has anticoagulant effect; The sugar in blood type is related to immune activity. In addition, the components of nucleic acid also contain carbohydrates-ribose and deoxyribose. Therefore, sugar compounds are more important to medicine.
Extended data
Sweet potato has strong adaptability to drought, the soil water capacity should be controlled at 60-70%, and the suitable water conditions can meet the needs of different growth periods. The soil water holding capacity in bud stage, seedling stage, stem and leaf stage, branching stage and potato setting stage should be between 60% and 80%. Low water-holding capacity will cause slow root growth, leading to weak seedlings, short seedlings and sick seedlings; The soil water holding capacity should be 60-70% at the root stage, which can effectively promote the rapid formation and expansion of roots.
Don't have too much moisture in this period. In case of rainy days, it is necessary to strengthen management, pay attention to reducing water accumulation in the field and improve drainage capacity. At the same time, sweet potato has good acid and alkali resistance and strong adaptability to soil environment. Its root system is developed and its ability to absorb fertilizer is strong, so it is appropriate to choose a plot with deep soil layer, loose soil, good soil quality, strong irrigation and drainage ability and pH value between 4.2 and 8.3.
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