老参地土壤生态改良技术初步研究

利用丛枝菌根菌、EM菌、NEB菌剂结合发酵玉米秸秆粉等物质对老参地土壤进行改良后栽参。正交实验设计法。4种物质施入后土壤有机质含量提高0.90%～30.79%、pH值提高2.22%～7.06%、碱解氮提高11.33%～63.36%、速效磷提高41.91%～163.35%、速效钾提高7.8%～54.01%、有益微生物放线菌数量提高2～10倍,除个别处理外,人参株高、茎粗、叶绿素含量均有所提高,单枝鲜重提高9.52%～49.21%、产量提高1.91%～68.80%、折干率提高6.71%～17.14%,保苗率提高35.15%～73.35%,病株数降低2～7倍。这种方法有效改善了老参地土壤的微生态环境和理化性状,有利于人参的生长。

Study on Effect of Ecology Method on Panax ginseng Continuous Cropping Ground Soil Improvement

Using EM microbial agen, Arbuscular mycorrhiza, NEB and fermentation corn straw to improve the soil of continuous cropping ground for ginseng culturing. Using orthogonal test design. After using 4 kinds of matter, soil organic matter increased by 0.90% -30.79%, pH increased by 2.22% -7.06% , availible N increased by 11.33% -63.36% , availible P increased by 41.91% - 163.35% , availible K increased by 7.8% -54.01%. The amount of beneficial microorganisms actenomycetes increased by 2 -10 times. For the most treatment, plant height, stem diameter and the contain of chlorophyll increased, root weight increased by 9.52% -49.21% , fresh yield increased byl. 91% -68.80% , drying rat increased by 6.71% - 17.14%. The pathogenic rat reduced 2 - 7times. The microbes environments and chemical environments of Continuous cropping ground soil are improved remarkable after 4 kinds of matter used, thereby promoted the growth of ginseng.