Planting techniques of Radix Polygoni

Black medicine is a kind of Lauraceae plant, its root tuber can be used as medicine, it has the effect of relieving pain, warming the kidney and dispelling cold. It is mainly used for chest and abdominal pain, bladder deficiency and cold, frequent enuresis and other diseases, but also can treat some respiratory and urethral diseases. So how to grow black medicine? Let's get to know it.

1. Seed selection treatment

Polygonum multiflorum is propagated by seeds. First of all, the plants with good growth and free of diseases and insect pests should be selected as the mother plants, and the seeds and fruits should be collected before and after the Beginning of Winter. Remove the outer skin of the fruit, take out the seeds, and then remove the spoiled and unfull seeds, leaving the full grains for sand storage. When storing sand, it is necessary to keep the sand in a certain degree of humidity, and check it frequently so as not to be too dry, reduce the vigor of seeds and reduce the germination rate.

2. Sowing seeds

The best time for sowing is before and after the Qingming Festival, when the temperature is suitable, Rain Water is abundant, and it is suitable for seed germination and emergence. A loam plot with good drainage and loose and fertile soil is selected as a seedling, and it should be ploughed many times before sowing to make it fully weathered. If the soil fertility is barren, some base fertilizer can be applied appropriately. Using the method of strip sowing or sowing, the amount of seeds per mu is about 5 kg, and a layer of shallow soil is covered after sowing, which should not be too thick. Cover a layer of 3 straw, heat preservation and moisturizing to facilitate seedling emergence.

3. Seedling stage management

The sunshade net should be built according to the climate change after sowing, so as to avoid strong light exposure after the seedlings are unearthed, causing the seedlings to wither or die. Weeding should be done in time after the seedlings are unearthed to prevent weeds from seizing nutrients and growth space. Weeds should be removed as soon as they are seen, so that there are no weeds in the field. After weeding, you should top fertilize once, and then once every two months, when entering the autumn, you can remove the sunshade net to refine the seedlings. It should be drained in time after the rainy season to avoid rotting roots, and the seedlings can be transplanted after 1-2 years.

4. Transplanting management

The transplanting site should choose a plot with plenty of sunshine and loose and fertile soil, and ploughing should be carried out in the autumn and winter of the first year, so that the soil should be fully weathered and mature, and at the same time, weeds and residual plants should be removed and raked flat. Organic fertilizer should be applied as base fertilizer before transplanting, so as to improve the sufficient fertility of plant growth in the future, and pay attention to the density when transplanting, so as to avoid canopy between plants and prone to diseases and insect pests. Generally transplanting 2000-4000 plants per mu, depending on plant growth and soil fertility, fill the soil after transplanting and pour enough fixed root water to avoid survival.

The above is the introduction of black medicine planting technology, hope to help you, want to know more related knowledge, please pay attention to us.