文献类型： 外文期刊

作者： Liu, Huai-a ¹ ; Rodrigo Cominom, Jesus ³ ; Wu, Hong-sheng ² ; Yang, Guang-yao ² ; Ma, Xiao-ling ² ; Wang, Xiao-jun; ¹ ;

作者机构： 1.Jiangsu Acad Agr Sci, Lixiahe Reg Res Inst Agr Sci, Lab Plant Protect, Yangzhou 225008, Jiangsu, Peoples R China

2.Nanjing Univ Informat Sci & Technol, Dept Agr Resource & Environm, Nanjing 210044, Jiangsu, Peoples R China

3.Univ Malaga, Dept Geog, Inst Geomorfol & Suelos, Edificio Ada Byron,Ampliac Campus Teatinos, E-29071 Malaga, Spain

4.Trier Univ, Dept ofPhys Geog, D-54286 Trier, Germany

5.Ning Xia Acad Agr & Forestry, Guyuan Branch, Guyuan 756000, Peoples R China

6.Yangzhou Polytech Inst, Yangzhou 225127, Jiangsu, Peoples R China

7.Dickinson State Univ, Dept Nat Sci, Dickinson, ND USA

关键词： Fusarium orysporum f. sp niveum; bio-organic fertilizer; watermelon monoculture; biological soil contamination

期刊名称：JOURNAL OF SOIL SCIENCE AND PLANT NUTRITION （ 影响因子：3.872； 五年影响因子：3.771 ）

ISSN： 0718-9516

年卷期： 2018 年 18 卷 3 期

页码：

收录情况： SCI

摘要： Sustainably managed soils can increase soil quality, biodiversity, and reduce soil erosion and nutrient losses. In several regions of China, long-term monocultures such as watermelon are leading to severe degradation of soil biological functions due to contamination by dominant and deleterious microbes, particularly Fusarium spp., resulting in decreased soil productivity and quality. The main goal of this study was to assess a new bio-organic fertilizer in monoculture areas by testing the interactions between Fusarium oxysporum f. sp. niveum and microbial communities to inhibit it. The results showed that the tested organism significantly reduced Fusarium wilt in a watermelon monoculture plantation in China. The rate of wilt incidence following bio-fertilizer treatment was decreased by 70% at 63 days and the Fusarium counts in the watermelon rhizosphere declined too. Moreover, total abundance of bacteria increased, but total abundance of actinomycetes decreased. The beneficial microbes increased and became dominant while deleterious microbes, particularly Fusarium spp., were inhibited. The main conclusions of this study were that: i) a controlled bio-organic fertilizer stimulated the growth of ecologically beneficial microbes and naturally existing autochthonous antagonistic microbes; and, ii) the beneficial population structure and soil functions recovered following the reconstruction of functional microbial communities. Our results will add more useful information to understand how long-term crop monocultures can lead to detrimental effects on the soil microbial communities that will, in turn, affect the growth of plants and normal soil functions.