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Organic grain cropping systems to enhance ecosystem services

Type de document
journalArticle
Langue source
-- Langue source --
Titre
Organic grain cropping systems to enhance ecosystem services
Titre français
Titre anglais
Auteur(s)
  • CAVIGELLI Michel A.
  • MIRSKY Steven B.
  • TEASDALE John R.
  • SPARGO John T.
  • DORAN John
Editeur(s)
Autre(s)
Id
UY4ELV4X
Version
2790
Url zotero
https://www.zotero.org/groups/2567444/items/UY4ELV4X
Date ajout
12 mars 2021 19:55
Date modification
12 mars 2021 19:55
Résumé
Organic grain cropping systems can enhance a number of ecosystem services compared with conventional tilled (CT) systems. Recent results from a limited number of long-term agricultural research (LTAR) studies suggest that organic grain cropping systems can also increase several ecosystem services relative to conventional no-till (NT) cropping systems: soil C sequestration and soil N fertility (N mineralization potential) can be greater while global warming potential (GWP) can be lower in organic systems that use animal manures and cover crops compared with conventional NT systems. However, soil erosion from organic systems and nitrous oxide (N2O, a greenhouse gas) emissions from manure-based organic systems appear to be greater than from conventional NT systems, though data are limited. Also, crop yields, on average, continue to be lower and labor requirements greater in organic than in both tilled and NT conventional systems. Ecosystem services provided by organic systems may be improved by expanding crop rotations to include greater crop phenological diversity, improving nutrient management, and reducing tillage intensity and frequency. More diverse crop rotations, especially those that include perennial forages, can reduce weed pressure, economic risk, soil erosion, N2O emissions, animal manure inputs, and soil P loading, while increasing grain yield and soil fertility. Side-dressing animal manures in organic systems may increase corn nitrogen use efficiency and also minimize animal manure inputs. Management practices that reduce tillage frequency and intensity in organic systems are being developed to reduce soil erosion and labor and energy needs. On-going research promises to further augment ecosystem services provided by organic grain cropping systems.
Note
None
CRAW tags
  • AB - Spécifique
  • FREDO durabilité
  • FREDO environnement
  • GEO Etats-Unis
  • service écosystémique
WEB tags
Titre de la publication
Renewable Agriculture and Food Systems
Volume
28
Pages
145-159
Date caractères
06/2013
Date publication
1 juin 2013
Doi
10.1017/S1742170512000439 Le DOI est une URL unique de référencement d'une publication. Il est donc plus fiable et permanent qu'une URL classique
Issn
1742-1705, 1742-1713 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.cambridge.org/core/product/identifier/S1742170512000439/type/journal_article