Effects of Different Fertilization Treatments on Soil Microbial Community Structure and the Occurrence of Watermelon Wilt

doi:10.16409/j.cnki.2095-039x.2018.04.014

Abstract

Abstract: The objective of this study was to compare the effects of different fertilizer combinations on occurrence of fusarium wilt of watermelon and to excavate the closely related genus to the disease of watermelon seedlings. The composition of bacterial communities of soil samples fertilized by 3 different soil fertilizer combination groups, followed by the control group (CK), T1 and T2, were compared to that of bacterial communities by the Illumina Meseq platform targeting the V3-V4 regions of 16S rDNA. Through the sequencing results analysis in OTU and the relative abundance of the population, we have find 28986 tags in CK, 30308 tags in T1, and 29730 tags in T2, and there are 860 OTUs in common, which is more than 50% within average of each treatment. And in the genus top 10 bacteria population, the abundance of Bacillus, Enterococcus, Lactococcus, Clostridium in T1 was apparently higher than others, while the unclassified_TM7-1(c) and unclassified_Ellin329(o) were significantly high in T2. The incidence of watermelon Fusarium wilt is CK > T1 > T2. The application of Basamid+Bio-organic fertilizer can be used to rebuild the soil ecological environment and help to improve the soil bacterial diversity, which has a significant preventive effect on watermelon fasurium wilt.

Key words: watermelon, soil microbes, bio-organic fertilizer, 16S rDNA, Fusarium wilt

CLC Number:

S476
S651

ZHU Feiying, TIAN Cheng, ZHANG Yi, XIAO Jiling, WEI Lin, LIANG Zhihuai. Effects of Different Fertilization Treatments on Soil Microbial Community Structure and the Occurrence of Watermelon Wilt[J]. journal1, 2018, 34(4): 589-597.

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