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No-till technology has limited potential to store carbon: How can we enhance such potential?

Type de document
journalArticle
Langue source
-- Langue source --
Titre
No-till technology has limited potential to store carbon: How can we enhance such potential?
Titre français
Titre anglais
Auteur(s)
  • BLANCO-CANQUI Humberto
Editeur(s)
Autre(s)
Id
FDV3ZBS2
Version
3381
Url zotero
https://www.zotero.org/groups/2567444/items/FDV3ZBS2
Date ajout
20 avril 2021 16:39
Date modification
20 avril 2021 16:39
Résumé
No-till is a top soil conservation practice, but if it will be used as a C sequestration strategy, it needs enhancement. Companion practices including N fertilization and irrigation do not often result in net C sequestration or some are unavailable (i.e., biochar) for a large-scale application. Adoption of aggressive or transformative no-till companion practices that genuinely remove CO2 from the atmosphere through photosynthesis and sequester it in the soil as C should be considered. Enhancing both cover crops and crop rotation complexity can be an aggressive biological strategy to boost no-till performance; yet this has not been much discussed. Enhancing cover crops by increasing both the cropland area under no-till cover crops and cover crop biomass production through biomass yield maximization strategies can store more C in the soil than current no-till cover crop management practices. Additionally, inserting multi-year perennial or forages including grasses and legumes into existing no-till row crop rotations could store an additional amount of C. These no-till enhancement practices may not only increase C sequestration in the soil but also boost the overall resilience and ecosystem services from agricultural lands. Their potential can be particularly greater in low C (below C saturation) than high C (at or near C saturation) no-till soils.
Note
None
CRAW tags
  • AB - Utile à l'AB
  • FREDO biologie et travail du sol
  • FREDO rotation culturale
  • GEO Etats-Unis
  • carbon sequestration
  • couvert végétal
  • labour
WEB tags
Titre de la publication
Agriculture, Ecosystems & Environment
Volume
313
Pages
107352
Date caractères
June 15, 2021
Date publication
15 juin 2021
Doi
10.1016/j.agee.2021.107352 Le DOI est une URL unique de référencement d'une publication. Il est donc plus fiable et permanent qu'une URL classique
Issn
0167-8809 L’ISSN est un code de 8 chiffres servant à identifier les journaux, revues, magazines, périodiques de toute nature et sur tous supports, papier comme électronique.
Url publication
https://www.sciencedirect.com/science/article/pii/S0167880921000566