Dihuang planting: how to harvest and process Dihuang?

How to harvest and process Rehmannia glutinosa? Please introduce the method of Rehmannia glutinosa harvesting and processing can refer to the following methods: 1. Rehmannia glutinosa harvesting: Rehmannia glutinosa leaves, flowers, roots can be used as medicine. Rehmannia glutinosa leaves in the late growth of Rehmannia glutinosa, select strong, disease-free plants, properly pick part of the leaves, cool place to dry. Rehmannia glutinosa leaves mainly treat malignant sores and tinea pedis, flowers have the effect of relieving thirst and treating kidney deficiency and low back pain. Therefore, the harvest should be carried out at an appropriate time. The harvest of Rehmannia glutinosa flowers should be in the florescence, choose a sunny day, combined with bud picking operation to pick back the flowers and buds, and dry them in a cool place. The best harvest time for the rhizome of Rehmannia glutinosa is from the end of October to the beginning of November, and the upper part of Rehmannia glutinosa can be harvested after it gradually withered and stopped growing. The harvesting method of Rehmannia glutinosa is to cut off the stems and leaves of the upper ground with a spade or sickle, and be careful not to cut too deeply so as not to damage the roots. After the above ground part is cut, use a rake to hold the cut stems and leaves to one side to expose the surface to facilitate the harvesting of the roots. Dig at one end of the border with a spade or pick, the depth of the ditch is about 35 cm, and the depth of excavation is better without damaging the roots, and Rehmannia is easy to break, so you must be careful when digging. The process of picking should also minimize the damage to the rhizome. 2. Processing of Rehmannia glutinosa: the rhizome of Rehmannia glutinosa is placed in the sun to dry. After being exposed to the sun for a period of time, after the Rehmannia glutinosa is dried to 70% or 80% dry, it will be stuffy in a pile for a few days to regain moisture. Make it dry evenly. Then in the sun, until the texture is soft and dry. Due to the weak sunshine and slow drying in autumn and winter, it is not only time-consuming and labor-consuming, but also the oiliness of the product is small. Remove the raw Rehmannia glutinosa from the soil, wash it with water, put the washed Rehmannia glutinosa in a basin, soak it with yellow rice wine, soak for half an hour, put the soaked Rehmannia glutinosa into a steamer, cover and seal the steamer, pay attention to uniform heat, put out the fire or the temperature is too low, and the internal juice of Rehmannia glutinosa will flow out, affecting quality and medicine. Steaming until Rehmannia glutinosa is black and moist inside and outside, without heart, stop heating when there is a special scorched aroma, take it out and put it on a bamboo mat or curtain to dry. Click to get more planting techniques of Rehmannia glutinosa