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Effects of Continuous Cropping of Panax notoginseng on the Properties of Rhizosphere Soil

查看全文 作　　者：Kaiming [1]LI;Meixiang [2]LIU;Qianhui [3]SUN;Zilong [2]ZHANG 高影响力作者 机构地区：[1]School of Life Science, Beijing University of Chinese Medicine, Beijing 100102, China;[2]School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 100102, China;[3]School of Basic Medical Science, Beijing University of Chinese Medicine, Beijing 100102, China高影响力机构 出　　处：《Agricultural Science & Technology》索引2017年第18卷第4期,共5页高影响力期刊 基　　金：Supported by National Natural Science Foundation of China(81102751);the National Key Technology R&D Program of China(2006BAI09B03) 摘　　要：[Objective] This experiment aimed to investigate the effects of continuous cropping of Panax notoginseng on the properties of rhizosphere soil. [Method] A total of 12 rhizospheres oil samples were collected in the fields continuously cropped with P. notoginseng for different years and the soil properties including pH value, contents of available N, available K, available P,total N, total K, total P and organic matter were determined. [Result] With the increase in the number of years of continuous cropping, seven soli indices: soil pH value, organic matter content, total N, total P, total K, available P and available K gradually increased, while available N showed a gradual downward trend. The contents of organic matter content, total N, total P, total K,available P, available K and available N after three years of continuous cropping were increased by 74.93%, 65.85%, 123.82%,18.78%, 341.67%, 120.16% and-32.16%, respectively, indicating that continuous cropping of P. notoginseng resulted in nutrient enrichment in rhizosphere soils. The pH value and available N in IBC(soil inside the border check) and UBC(soil under the border check) were higher than that in BBC(soil beside the border check), suggesting that the soil was gradually alkalized due to the continuous cropping of P. notoginseng. [Conclusion] These results suggest that pH change and nutrient imbalance may be the obstacles to the continuous cropping of P. notoginseng. 关 键 词：Continuous cropping CORRELATION Nutrient enrichment Panax notoginseng Soil properties
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