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Bioactivity of Size-Fractionated and Unfractionated Humic Substances From Two Forest Soils and Comparative Effects on N and S Metabolism, Nutrition, and Root Anatomy of Allium sativum L

Humic substances (HS) are powerful natural plant biostimulants. However, there is still a lack of knowledge about the relationship between their structure and bioactivity in plants. We extracted HS (THE1-2) from two forest soils covered with Pinus mugo (1) or Pinus sylvestris (2). The extracts were...

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Hauptverfasser: Diego Pizzeghello, Michela Schiavon, Ornella Francioso, Francesca Dalla Vecchia, Andrea Ertani, Serenella Nardi
Format: Artigo
Sprache:Inglês
Veröffentlicht: Frontiers Media S.A. 2020-08-01
Schriftenreihe:Frontiers in Plant Science
Schlagworte:
humic substances
molecular size
biostimulants
growth
sulfur
nitrogen
Online-Zugang:https://www.frontiersin.org/article/10.3389/fpls.2020.01203/full
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