The invention discloses a production method for prepared
rehmannia root decoction pieces. The production method comprises seven steps of: fine sorting, washing and moistening,
steaming to be soft,
drying, moistening,
slicing, and redrying, and a method for planting prepared
rehmannia root is provided simultaneously and comprises seven steps of: seed selection for
sowing, land selection and preparation,
sowing, field management, topdressing,
disease prevention and curing, and picking and
processing. The production method is complied with the ancient
processing, is superior to the traditional technique, high in production efficiency, high in yield and capable of saving energy, and suitable for large-scale industrial production, and capable of solving the deficiencies of a steam
cooker that the temperature is difficultly controlled, the quality reject ratio is high and the loss is large, and the planting method is simple, low in cost, easy to popularize and capable of
processing at the key growth and breeding stages of the prepared
rehmannia root, the yield of the prepared
rehmannia root can be greatly increased by comprehensively planting through combination of culturing measures on scientific and reasonable
fertilizer, proper planting density and the like, the
nutrient ingredients are high, the planted prepared
rehmannia root is natural, green and healthy, and the
pollution to the environment is also reduced.