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Copyright of Journal of Railway Science & Engineering is the property of Journal of Railway Science & Engineering Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

[Objective] The present study aimed at exploring the effect of single-and co-inoculation of microbes on rice yield and soil bacterial community. [Method] Pot experiment with rice plant was conducted with single-and co-inoculation of Rhodopseudomonas palustris and Bacillus subtilis. [Result] The application of the combined inoculations improved the rice yield with 17.71%.The application of microbial inoculations could effectively improve the soil enzyme activity. The 16 S rDNA amplified sequence analysis of soil bacteria showed that microbial inoculations showed limited effects on microbial diversity. However, the soil microbial community composition was significantly changed with the inoculations. Structural equation model showed that soil nitrogen significantly affected soil enzyme activity (r = 0.771,P<0.05) and rice yield (r = 0.448,P<0.05). Soil microbial community structures and α-diversity can indirectly affect rice yield by affecting the activities of microbial enzymes involved in soil carbon and phosphorus cycle. [Conclusion] This study provides an insight into the effectiveness of microbial fertilizer application in rice production and its effect on soil bacterial community. [ABSTRACT FROM AUTHOR]

Copyright of Journal of Agro-Environment Science is the property of Journal of Agro-Environment Science Editorial Board and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Asian Journals of Ecotoxicology is the property of Gai Kan Bian Wei Hui and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

The combined pollution of heavy metals and pesticides is ubiquitous in the environment, however,researches on their joint toxicity on organisms are still insufficient. Toxicity tests were conducted in our study to evaluate acute toxicity effects of single and mixed samples contaminated by cartap, lead(Pb)and chromium(Cr)(cartap-Pb and cartap-Cr mixed at the ratios of 1:1, 1:2 and 2:1, cartap-Pb-Cr mixed at the ratios of 1:1:1, 1:1:2, 1:2:1 and 2:1:1)on Vibrio fischeri under 15 min and 30 min, respectively. The half maximal effective concentration(ρ(EC50))of the single and mixed contaminants were calculated. ρ(EC50)values of cartap, Pb and Cr for 15 min tests were 386.23, 5.03, 62.85 mg/L, and that for 30 min tests are 205.48, 4.98, 50.58 mg/L, respectively. Toxicity unit method, mixtures toxicity index method, and additive index method were used to evaluate the joint toxicity of cartap, Pb and Cr on Vibrio fischeri. The results indicated that the cartap-Pb binary system was mainly characterized by synergism, antagonism, and partial additive effects. The ternary combination of cartap-Cr binary and cartap-Pb-Cr were combined, and the main manifestations were synergistic effects. [ABSTRACT FROM AUTHOR]

Copyright of Southwest China Journal of Agricultural Sciences is the property of Editorial Department of Southwest China Journal of Agricultural Sciences and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)