Cardiovascular disease is a serious threat to human, It is a common healthy disease especially in the elderly over the age of 50, even if used the most advanced treatment, there is still have more than 50% of cerebrovascular accident survivors can not completely self-care, The world's annual deaths from the disease as high as 15 million people, ranking the first cause of death. Cardiovascular disease is the number one disease that threatens human health. Currently anti-cardiovascular disease drugs mainly include cardiac drugs, anti-angina drugs anti-heart rate disorders drugs, antihypertensive drugs, anti-hyperlipoproteinemia drugs. Drug therapy is only a means of prevention, The fundamental is prevent from the source. Cardiovascular disease, in addition to being affected by genetic factors, mainly is associated with unhealthy lifestyles. Also known as lifestyle sickness. So the establishment of a healthy and reasonable way of life is the key to prevention.
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Day lily cultivation techniques
1. Method of Reproduction
(1) Vegetative Propagation
To ensure high-quality propagation, select healthy plants with strong growth, numerous flower buds, and no signs of pests or disease. Before the winter seedlings are harvested, dig up a portion of the tillers from the plant. These tillers should be carefully divided, with the roots cut from the shortened stems. Remove any old or damaged roots and fleshy root knots, and then cut the roots into appropriate sizes for planting. Ramets can also be propagated after the winter seedlings have wilted but before the spring cultivars begin to grow. The excavation process should be done with minimal damage to the plant. To maintain a good yield in the following year, about 1/4 to 1/3 of the ramets should be removed each season. After several years, the other side of the plant cluster can be excavated to ensure balanced growth.
(2) Seed Propagation
Choose the healthiest and most productive plants during their peak growing season. Leave 5 to 6 strong buds on each plant for flowering, while removing the rest as usual. Once the follicles have matured and their tips begin to open, harvest them by threshing and drying for later use. Sow the seeds from late autumn to early spring. Prepare the seedbed by applying base fertilizer, and create a wide bed of 130–170 cm, with shallow ditches about 3 cm deep every 17–20 cm. Pour diluted human manure into the ditches, then evenly sow the seeds. Cover the seeds with loose soil and add a thin layer of organic fertilizer or grass to keep the bed moist. Soak the seeds in warm water (25–30°C) for 1–2 days before sowing to promote germination. Keep the seedbed well-watered and free of weeds until the seedlings emerge.
2. Land Preparation and Planting
Before planting, deepen the soil to more than 30 cm. Deep plowing encourages a well-developed root system, resulting in lush foliage, many tillers, strong buds, and abundant flower buds. After leveling the ground, dig planting holes according to the recommended spacing—typically 1,500 to 2,000 holes per acre. Each hole should be about 25 cm deep and 30 cm in diameter. Apply compost as base fertilizer, then add a 6–7 cm layer of fine soil. Place 2–4 seedlings or young plants into each hole and cover the roots with soil, ensuring they are buried 10–15 cm below the surface. Top with fresh manure to enrich the soil. In the fall, especially in the Yangtze River region, this planting method allows the plants to develop new roots and accumulate nutrients, laying a solid foundation for strong spring growth. Late spring planting, however, may result in delayed sprouting, slower development, and reduced bolting.