The Effect of Bionic Cultivation on Panax notoginseng Rhizosphere Microorganism Diversity in Shilin County

PurposeCompared with the traditional planting mode of Panax notoginseng, we explored the soil microecological mechanism of bionic planting mode to solve the continuous cropping obstacle of P. notoginseng. Through the analysis of soil microorganism in the rhizosphere of P. notoginseng, the difference of soil microorganism diversity between traditional planting and bionic planting of P. notoginseng was clarified.

MethodsThe rhizosphere microorganism diversity of P. notoginseng was analyzed by the traditional method of soil isolation.

ResultIn the bionic planting mode, the number of bacteria in rhizosphere soil of one-year Panax, two-year Panax and three-year Panax was 90%, 122% and 77% higher than that in the soil (CK) without P. notoginseng planting after sterilization; under the traditional planting mode, the number of bacteria in rhizosphene soil of two-year Panax and three-year Panax were 37% and 41% lower than CK respectively. Under the bionic planting mode, the relative isolation frequency of Fusarium in the rhizosphere soil of P. notoginseng in three year was lower than that of the traditional planting mode.

ConclusionCompared with traditional planting mode of P. notoginseng, bionic planting mode can improve the content of bacteria in soil microorganisms, inhibit the growth of Fusarium, enrich the species of beneficial microorganisms, and maintain the balance of microbial colony structure in the soil.