Trichoderma Biofertilizer Links to Altered Soil Chemistry, Altered Microbial Communities, and Improved Grassland Biomass

Frontiers in Microbiology
Fengge ZhangYingjun Zhang

Abstract

In grasslands, forage and livestock production results in soil nutrient deficits as grasslands typically receive no nutrient inputs, leading to a loss of grassland biomass. The application of mature compost has been shown to effectively increase grassland nutrient availability. However, research on fertilization regime influence and potential microbial ecological regulation mechanisms are rarely conducted in grassland soil. We conducted a two-year experiment in meadow steppe grasslands, focusing on above- and belowground consequences of organic or Trichoderma biofertilizer applications and potential soil microbial ecological mechanisms underlying soil chemistry and microbial community responses. Grassland biomass significantly (p = 0.019) increased following amendment with 9,000 kg ha-1 of Trichoderma biofertilizer (composted cattle manure + inoculum) compared with other assessed organic or biofertilizer rates, except for BOF3000 (fertilized with 3,000 kg ha-1 biofertilizer). This rate of Trichoderma biofertilizer treatment increased soil antifungal compounds that may suppress pathogenic fungi, potentially partially responsible for improved grassland biomass. Nonmetric multidimensional scaling (NMDS) revealed soil chemistry and...Continue Reading

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Citations

May 1, 2021·Journal of Fungi·Mahadevamurthy MuraliKestur Nagaraj Amruthesh
Jul 2, 2021·3 Biotech·Praveen Koovalamkadu VelayudhanAditya Korekallu Srinivasa

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Datasets Mentioned

BETA
PRJNA393964

Methods Mentioned

BETA
PCR
PCA

Software Mentioned

QIIME
Perl scripts
R
MOTHUR
USEARCH
SPSS
FLASH
UPARSE
Sigmaplot
vegan

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