ArticleFrontiers in microbiomes2026
Soil microbial communities shift in response to cropping sequence diversification with perennial seed crops.
Article in Frontiers in microbiomes, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Not yet cited in PubMed.
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Corrections and comments
- Erratum issued
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4 authors.
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Abstract
Integrating perennial forage seed crops into annual cropping sequences can diversify the rotations and improve soil health, yet their effects on the soil microbial communities and functions are not yet fully elucidated on the Canadian prairies. Using a 10-year field experiment with eight cropping sequences under varying supplemental nitrogen (N) fertilization levels, we evaluated the impacts of integrating perennial seed crops and annual crops on soil microbial biomass carbon (MBC), the composition and diversity of prokaryotic and fungal communities, and the activities of key enzymes involved in carbon (C), N, phosphorus (P), and sulfur (S) cycling, namely β-glucosidase, N-acetyl-β-glucosaminidase, acid phosphomonoesterase and arylsulfatase. The crop sequences containing intermittent succession of perennial and annual crops had 17% greater soil MBC, higher fungal richness (e.g., Chao1 indices of 92.8 vs. 87.6) and 22% greater β-glucosidase activity than annual-only sequences. The relative abundances of the two most abundant prokaryotic phyla -
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