OBJECTIVETo study the effects of Chrysanthemum morifolium based on functional diversity in soil microbial community with different cropping system and fertilization and offer scientific basis for the establishment of the reasonable planting patterns.

METHODCombined yield and quality of Ch. morifolium, 8 treatments of different cropping system and fertilization on functional diversity in soil microbial community of Ch. morifolium were investigated by the Biolog.

RESULTThe AWCD of Ch. morifolium paddy-dryland rotation was higher than that of the continuous cropping, the AWCD of organic fertilizer and compound NPK > single organic fertilizer > single compound NPK > no fertilizer. The principal component analysis about Ch. morifolium soil microbial carbon source use showed that the contribution rate of principal component 1 was 45.5% and principal component 2 was 12.1%, which could explain most information about the variation. Different cropping system of Ch. morfolium differentiated in principal component 1 axis, different fertilization differentiated in principal component 2 axis. The yield of Ch. morifolium and volatile oil content paddy-dryland rotation was significantly higher than that of continuous cropping.

CONCLUSIONThe Ch. morifolium should be cultivated with organic fertilizer and compound NPK by paddy-dryland rotation patters.

Biota ; Chrysanthemum ; metabolism ; microbiology ; Fertilizers ; Oils, Volatile ; analysis ; Soil Microbiology

Objective:To perform 3D modeling based on CT images of human stomach-esophagus structure and provide 3D models of normal and reflux forms of gastroesophagus.Methods:Based on CT images of stomach-esophagus structure, 3D models was established using Mimics 10.01, Geomagic Studio 2012 and SolidWorks 2018 software. In the modeling process, the Mimics software was used to coarsely and finely divide the model to export stomach-esophageal point cloud data. On the basis of the point cloud data, Geomagic Studio software was used to simplify and repair the model, and complete the operations of filling holes and smooth surfaces. SolidWorks software was used to process the structure of the cardia and establish a normal model of stomach-esophagus and a model of cardiac disease. Finally, the model was replicated using soft 3D printing technology.Results:The geometric parameters of the established stomach-esophagus model were within the actual range, which proved that the model has certain practicality.Conclusions:The model can be used as a basic material for gastric surgery simulation training, to help doctors or medical students to be proficient and improve the operation skills and surgical level of gastric surgery.