The comprehensive changes in soil properties are continuous cropping obstacles associated with American ginseng (Panax quinquefolius) cultivation

被引:57
作者
Li, Chongwei [1 ]
Chen, Guozhong [1 ]
Zhang, Jianlong [1 ]
Zhu, Ping [1 ]
Bai, Xinfu [1 ]
Hou, Yuping [1 ]
Zhang, Xingxiao [1 ]
机构
[1] Ludong Univ, Sch Life Sci, Yantai 264025, Peoples R China
基金
中国国家自然科学基金;
关键词
MICROBIAL COMMUNITIES; MULTIVARIATE ANALYSES; PHENOLIC-COMPOUNDS; ENZYME-ACTIVITIES; ROOT-ROT; DIVERSITY; PLANT; RHIZOSPHERE; ROTATIONS; DATABASE;
D O I
10.1038/s41598-021-84436-x
中图分类号
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号
07 ; 0710 ; 09 ;
摘要
This study aims to verify the time-variant feature of American ginseng (AG) continuous cropping obstacles and to explore the factors impeding continuous cropping. We verified the feature with a plant-soil feedback pot experiment and then investigated the factors by comparing the properties of control soils that had not been previously used for growing ginseng (CS) with those of soils with a 10-year-crop-rotation cycle following the growth of AG (RS). It's found that the survival rate of AG in RS was lower than that in CS. The RS had lower pH, available potassium content, and urease activity. Additionally, p-coumaric, p-hydroxybenzoic, vanillic, caffeic, and cinnamic acid levels were lower in RS than in CS, but salicylic acid levels showed the opposite pattern. RS had higher Rhodanobacter and lower Acidothermus, Sphingomonas relative abundances in bacterial community. It's also found that many bacteria were substantially correlated with phenolic acids and soil physiochemical properties. Results indicate that even after 10-year crop rotation, the negative effects of prior continuous cropping of AG has not been eliminated. The growth of AG can be affected negatively with deterioration of soil physicochemical properties and with lower levels of phenolic acids which promote pathogen reproduction. Probiotics reduction also weighs. Moreover, biotic factors are interrelated with abiotic ones. Therefore, it can be inferred that the comprehensive change of soil properties is the main obstacle for continuous cropping.
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页数:14
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