Trichoderma improves the growth of Leymus chinensis

Trichoderma improves the growth of Leymus chinensis Bio-fertilizer application has been proposed as a strategy for enhancing soil fertility, regulating soil microflora composition, and improving crop yields, and it has been widely applied in the agricultural yields. However, the application of bio-fertilizer in grassland has been poorly studied. We conducted in situ and pot experiments to investigate the practical effects of different fertilization regimes on Leymus chinensis growth, with a focus on the potential microecological mechanisms underlying the responses of soil microbial composition. L. chinensis biomass was significantly (P < 0.05) increased by treatment with 6000 kg ha−1 of Trichoderma bio-fertilizer compared with other treatments. We found a positive (R 2 = 0.6274, P < 0.001) correlation between bacterial alpha diversity and L. chinensis biomass. Hierarchical cluster analysis and nonmetric multidimensional scaling (NMDS) revealed that soil bacterial and fungal community compositions were all separated according to the fertilization regime used. The relative abundance of the most beneficial genera in bio-fertilizer (BOF) (6000 kg ha−1 Trichoderma bio-fertilizer) was significantly higher than in organic fertilizer (OF) (6000 kg ha−1 organic fertilizer) or in CK (non-amend fertilizer), there the potential pathogenic genera were reduced. There were significant negative (P < 0.05) correlations between L. chinensis biomass and the relative abundance of several potential pathogenic genera. However, the relative abundance of most beneficial genera were significantly (P < 0.05) positively correlated with L. chinensis biomass. Soil properties had different effects on these beneficial and on these pathogenic genera, further influencing L. chinensis biomass. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Biology and Fertility of Soils Springer Journals

Trichoderma improves the growth of Leymus chinensis

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Publisher
Springer Berlin Heidelberg
Copyright
Copyright © 2018 by Springer-Verlag GmbH Germany, part of Springer Nature
Subject
Life Sciences; Agriculture; Soil Science & Conservation
ISSN
0178-2762
eISSN
1432-0789
D.O.I.
10.1007/s00374-018-1292-7
Publisher site
See Article on Publisher Site

Abstract

Bio-fertilizer application has been proposed as a strategy for enhancing soil fertility, regulating soil microflora composition, and improving crop yields, and it has been widely applied in the agricultural yields. However, the application of bio-fertilizer in grassland has been poorly studied. We conducted in situ and pot experiments to investigate the practical effects of different fertilization regimes on Leymus chinensis growth, with a focus on the potential microecological mechanisms underlying the responses of soil microbial composition. L. chinensis biomass was significantly (P < 0.05) increased by treatment with 6000 kg ha−1 of Trichoderma bio-fertilizer compared with other treatments. We found a positive (R 2 = 0.6274, P < 0.001) correlation between bacterial alpha diversity and L. chinensis biomass. Hierarchical cluster analysis and nonmetric multidimensional scaling (NMDS) revealed that soil bacterial and fungal community compositions were all separated according to the fertilization regime used. The relative abundance of the most beneficial genera in bio-fertilizer (BOF) (6000 kg ha−1 Trichoderma bio-fertilizer) was significantly higher than in organic fertilizer (OF) (6000 kg ha−1 organic fertilizer) or in CK (non-amend fertilizer), there the potential pathogenic genera were reduced. There were significant negative (P < 0.05) correlations between L. chinensis biomass and the relative abundance of several potential pathogenic genera. However, the relative abundance of most beneficial genera were significantly (P < 0.05) positively correlated with L. chinensis biomass. Soil properties had different effects on these beneficial and on these pathogenic genera, further influencing L. chinensis biomass.

Journal

Biology and Fertility of SoilsSpringer Journals

Published: May 31, 2018

References

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