Effects of Different Cultivation Methods on the Quality and Soil Enviroment of Astragalus membranaceus in Understory Planting
In order to improve the land utilization rate and increase the yield of forest land,four different methods like:Pre-plastic film+Non-plastic film,Pre-plastic film+After-plastic film,Non-plastic film+Non-plastic film,Non-plastic film+After-plastic film were conjunctively used,combined with drought resistance and moisture conservation were set up in the forest land of Astragalus membranaceus,additionally including different planting methods of oblique planting,flat planting and direct planting,and different combinations of base fertilizer and topdressing.Eventually exploring the effects of forest and medicinal compound planting on soil environment.The results showed that:(1)The traits and quality of A.membranaceus were the best when the method of Pre-plastic film+After-plastic film was adopted,the diameter of radix was larger,the taproot was longer and the total number of roots was larger;(2)The traits and quality of medicinal materials were the best when flat planting treatment,Organic fertilizer+Foliar spraying fertilizer,and the content of heavy metals and harmful elements was less,and the impact of sharpening treatment was marginal;(3)When the method of Pre-plastic film+After-plastic film was adopted,the soil density,water content,soil total N,available P,available K and organic matter contents were correspondingly raised,and the soil structure,air permeability and water permeability properties were effectively modified as well.In summary,the best way for planting A.membranaceus in the understory planting is flat planting,Pre-plastic film+After-plastic film,Base fertilizer+Topdressing treatment of leaf surface.
cultivation methodunderstory plantingquality of medicinal materialssoil environment
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