The cultivation of Chinese medicinal materials is not only consistent with the cultivation of crops, fruit trees, and vegetables, but also different from the cultivation of these plants. Due to the wide variety and variety of growing regions, various Chinese herbal medicines have different adaptability to the surrounding environment, which determines the diversity of cultivation methods of Chinese herbal medicines. In general, Chinese herbal medicine production should pay attention to the following characteristics: (1) The traditional Chinese medicinal materials cultivated on the principle of paying attention to the yield and quality of Chinese herbal medicines are ultimately used to prevent and treat diseases. If the yield is high, the active ingredient content is low or not at all, the medicinal value is reduced or lost. The low output has also affected the income of drug farmers. The quality of medicinal herbs is mainly determined by the content and efficacy of the active ingredients. In addition, the form, size, and color of medicinal materials, ie, the product properties (commonly known as selling), are also aspects of quality. Therefore, in the process of planting Chinese herbal medicines, the vast majority of drug cultivators pay special attention to the quality of medicinal materials in addition to vigorously increasing their output. In addition, with the development and implementation of the National "GAP" (Chinese Medicinal Plants Production Quality Management Regulations), in the production process, minimizing the application of pesticides and fertilizers in order to obtain green Chinese herbal medicines will be a development of the production of Chinese herbal medicines in the future. direction. (2) The characteristics of the continuous cropping of botanicals in the cultivation of Chinese herbal medicines Many Chinese herbal medicines, especially some rhizomatous herbs such as Atractylodes macrocephala, chrysanthemum, Radix Rehmanniae, and Salvia miltiorrhiza, etc. are not suitable for continuous cropping. On the one hand, due to the problems of soil fertility and changes in soil structure, on the other hand, serious pests and diseases have occurred. In addition, Chinese herbal medicines secrete some toxic substances in the soil during the growth process, which also makes the effect of continuous cropping not good. It is advisable to use common herbaceous plants for the preparation of traditional Chinese medicinal materials. (III) Diversity of Cultivation Techniques of Chinese Medicinal Materials Due to different medicinal sites of different Chinese herbal medicines, different environmental requirements and different cultivation ages, the diversity of Chinese medicinal material cultivation techniques has been formed. If the cultivation of Pinellia and Gynostemma pentaphylla is to be shaded, the saffron must be degraded during the growth period to prevent the degeneration of the stems; the chrysanthemum should be used to increase the number of branches; the roots and roots should be extracted; the alfalfa and the hawthorn must be plasticized. Pruning; peony, Campanulaceae need to peel fresh peeled and so on. Therefore, different Chinese medicinal material cultivation techniques have their own particularities. If you do not understand or master some of the production technical points of Chinese herbal medicines, it is difficult to ensure that you can produce high-yield, high-quality Chinese herbal medicine products.
Cylindrical Roundness Tester
A measuring instrument for quantitatively evaluating the cylindricity of a cylinder by measuring the actual contour of the cylinder using the precise rotation centerline as the reference standard and the precise linear motion guide rail as the reference standard. It can be used to measure cylindrical shape errors (roundness, cylindricity, straightness, and flatness), position errors (coaxiality and verticality), etc.
The cylindrical Roundness Tester is mainly used to measure the roundness, cylindricity, straightness, concentricity, coaxiality, flatness, parallelism, perpendicularity, surface waviness, discontinuous surface, etc. of various regular and irregular circular workpieces. It can also perform spectrum analysis, wave height analysis, eccentricity, shaft bending analysis, and runout analysis on workpieces.
This device has excellent cost-effectiveness, full measurement capability, and is easy to learn and use.
Cylindrical Measuring Instrument,Cylindricity Measuring Instrument ,3D Image Measuring Instrument,Roundness Measurement Instrument
Zhejiang dexun instrument technology co., ltd , https://www.dexunmeasuring.com