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Prepared rehmannia is a medicinal herb for women to nourish the blood.
Many people are familiar with prepared rehmannia, but its functions and uses may not be well known to everyone. Prepared rehmannia is a processed product made from raw rehmannia; it looks like black strips, is warm in nature...
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Cultivation Techniques and Management Key Points for Prepared Rehmannia
Cultivation Techniques for Prepared Rehmannia
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How to select and prepare land when planting Polygonatum (Solomon's seal)
For planting Polygonatum, it is best to choose shaded, moist mountain land or relatively damp farmland, with fertile sandy loam or light clay soil. When using mountain land for planting, in spring and autumn clear the understory shrubs and weeds, dig and turn the soil about 30 cm deep, remove tree roots and other debris, rake it fine and level it, and make beds following the terrain and slope, ready for sowing or planting. When using farmland, plough and turn the soil before planting, and along with ploughing apply 3000 kg of organic fertilizer per mu, then make beds after land preparation for later use.
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How to Choose and Prepare the Site for Licorice Cultivation? Detailed Technical Points
Licorice has a very strong rhizome sprouting ability, extending horizontally beneath the soil surface around the old plant; one licorice plant can produce dozens of new plants within a few years. Under artificial cultivation, 3 years after sowing, new plants can be seen growing 3-4 meters away from the mother plant. Its vertical rhizome can also develop roots. The depth of the root system varies with soil texture and the depth of the groundwater table, generally within the range of 1-2 meters, sometimes reaching more than 10 meters, using the deep root system to absorb groundwater and adapt to arid environmental conditions.
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How to Select and Prepare Land for Planting Licorice
Usually, sandy soil that is fertile, loose in texture, well-drained and low in salinity and alkalinity is chosen for planting licorice, and it requires a deep soil layer and a low groundwater table. In North China, Northeast China and Northwest China, licorice should be cultivated on sand dune areas or on high-lying alluvial soil on both banks of rivers; this kind of licorice is rich in powder, low in fiber and strong in sweet taste; saline-alkali land should not be chosen, otherwise the cultivated licorice will have short main roots and many branches, with rhizomes growing horizontally on the surface, thin and weak, and the product will be light in weight, low in powder and not strong in sweet taste. Choose sandy loam with a deep soil layer; as long as it is plowed about 30 cm
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