Green and animal manure use in organic field crop systems
Type de document
journalArticle
Langue source
-- Langue source --
Titre
Green and animal manure use in organic field crop systems
Titre français
Titre anglais
Auteur(s)
- CARR Patrick M.
- CAVIGELLI Michel A.
- DARBY Heather
- DELATE Kathleen
- EBERLY Jed O.
- FRYER Heather K.
- GRAMIG Greta G.
- HECKMAN Joseph R.
- MALLORY Ellen B.
- REEVE Jennifer R.
- SILVA Erin M.
- SUCHOFF David H.
- WOODLEY Alex L.
Editeur(s)
Autre(s)
Id
TIM2L6KJ
Version
2710
Date ajout
12 mars 2021 19:55
Date modification
12 mars 2021 19:55
Résumé
Dual-use cover/green manure (CGM) crops and animal manure are used to supply nitrogen (N) and phosphorus (P) to organically grown field crops. A comprehensive review of previous research was conducted to identify how CGM crops and animal manure have been used to meet N and P needs of organic field crops, and to identify knowledge gaps to direct future research efforts. Results indicate that: (a) CGM crops are used to provide N to subsequent cash crops in rotations; (b) CGM-supplied N generally can meet field crop needs in warm, humid regions but is insufficient for organic grain crops grown in cool and sub-humid regions; (c) adoption of conservation tillage practices can create or exacerbate N deficiencies; (d) excess N and P can result where animal manures are accessible if application rates are not carefully managed; and (e) integrating animal grazing into organic field crop systems has potential benefits but is generally not practiced. Work is needed to better understand the mechanisms governing the release of N by CGM crops to subsequent cash crops, and the legacy effects of animal manure applications in cool and sub-humid regions. The benefits and synergies that can occur by combining targeted animal grazing and CGMs on soil N, P, and other nutrients should be investigated. Improved communication and networking among researchers can aid efforts to solve soil fertility challenges faced by organic farmers when growing field crops in North America and elsewhere.
Note
None
CRAW tags
- AB - Spécifique
- FREDO effluents et litière
- FREDO fertilisation
- GEO Etats-Unis
WEB tags
Titre de la publication
Agronomy Journal
Volume
112
Pages
648-674
Date caractères
2019
Date publication
1 janvier 2019
Doi
https://doi.org/10.1002/agj2.20082
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Il est donc plus fiable et permanent qu'une URL classique
Issn
1435-0645
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