| 丁香酚对小麦-蚕豆间作土壤微生物数量及多样性的影响 |
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| 引用本文： | 刘辉娟,柴强,黄高宝,周海燕,朱静.丁香酚对小麦-蚕豆间作土壤微生物数量及多样性的影响[J].草业科学,2013,30(3):346-351. |
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| 作者姓名： | 刘辉娟 柴强 黄高宝 周海燕 朱静 |
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| 作者单位： | 甘肃省干旱生境作物学重点实验室 甘肃农业大学农学院,甘肃兰州,730070;甘肃省干旱生境作物学重点实验室 甘肃农业大学农学院,甘肃兰州,730070;甘肃省干旱生境作物学重点实验室 甘肃农业大学农学院,甘肃兰州,730070;甘肃省干旱生境作物学重点实验室 甘肃农业大学农学院,甘肃兰州,730070;甘肃省干旱生境作物学重点实验室 甘肃农业大学农学院,甘肃兰州,730070 |
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| 基金项目： | 国家自然科学基金项目，甘肃省杰出青年基金，国家公益性行业项目 |
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| 摘 要： | 通过盆栽试验，探讨了在田间持水量75%水平下，小麦(Triticum aestivum)根系分泌物丁香酚对小麦、蚕豆(Vicia sativa)单作和间作群体土壤微生物数量及其多样性的影响，以期为化感物质间作群体的调控提供理论依据。结果表明，总体上，微生物的多样性降低，真菌和放线菌数量减少，而细菌数量增加。与无丁香酚处理对比，在3种种植模式中，丁香酚对土壤真菌和放线菌数量均表现为化感抑制作用，两种微生物数量的减小幅度分别为21.95%~98.42%和13.33%~92.82%；单作小麦较间作处理的细菌数量变化了-118.63%~90.73%，但单作蚕豆细菌数量变化了-56.39%~76.76%；放线菌占微生物的相对数量变化了-4.42%~4.32%，细菌变化了-4.36%~4.88%。小麦间作蚕豆降低了土壤微生物多样性指数，较单作小麦、单作蚕豆分别变化了15%~26.98%和-45.45%~6.67%；经丁香酚处理，单作中土壤微生物多样性指数降低，而间作变化不大。
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| 关 键 词： | 丁香酚 种植模式 土壤微生物 化感作用 |
Effects of eugenol on soil microbes in wheat faba-bean intercropping and mono-cropping systems |
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| LIU Hui juan,CHAI Qiang,HUANG Gao bao,ZHOU Hai yan,ZHU Jing.Effects of eugenol on soil microbes in wheat faba-bean intercropping and mono-cropping systems[J].Pratacultural Science,2013,30(3):346-351. |
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| Authors: | LIU Hui juan CHAI Qiang HUANG Gao bao ZHOU Hai yan ZHU Jing |
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| Abstract: | In order to provide theoretical basis for the regulation of intercropping system of existed allelochemicals, effects of eugenol, a kind of wheat root exudate, on microbial population and diversity of intercropped and mono cropped wheat faba bean systems under 75% field capacity condition were investigated by a pot experiment. Results showed that as a whole, soil microbial diversities decreased, fungi and actinomycetes population decreased, and bacteria population increased in wheat faba bean intercropping and mono cropping systems. Among the three cropping patterns, compared with no eugenol application, eugenol treatments displayed inhibitory effects on the amounts of soil fungi and actinomycetes, which decreased by 21.95%-98.42% and 13.33%-92.82%, respectively. Bacterial population of sole wheat decreased by -118.63%-90.73% than intercropping treatments, while that of sole bean increased by -56.39%-76.76%. The relative amount of actinomycetes of the microbial population declined by -4.42%-4.32%, while the ratio of bacterial population increased by -4.36%-4.32%. Compared with wheat and bean monoculture, wheat bean intercropping could reduce soil microbial diversity index, in which soil microbial diversity index decreased by 15%-26.98% and -45.45%-6.67%, respectively. The microbial diversity index of monoculture with eugenol treatment declined. |
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| Keywords: | eugenol cropping pattern soil microbe allelopathy effect |
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