Soil nematode biodiversity in organic and conventional agroecosystems of Northern Greece
Type de document
journalArticle
Langue source
Anglais
Titre français
Titre anglais
Soil nematode biodiversity in organic and conventional agroecosystems of Northern Greece
Auteur(s)
- TSIAFOULI Maria A
- ARGYROPOULOU Maria D
Editeur(s)
Autre(s)
Id
AL9TPTJ6
Version
2774
Date ajout
7 janvier 2021 14:16
Date modification
7 janvier 2021 14:16
Résumé anglais
In this study we describe and compare nematode communities in terms of trophic and generic structure,life strategy and diversity, in soils under asparagus cultivation managed conveutionally and organically. Natural hedgerows bordering cultivations were also studied as reference systems.The bacterivore/fungivore group, accounted for 80% of total nematode abundance under organic cultivation, whilst phytoparasites increased in abundauce in conventional plots resulting in higher plant parasitic index (PPI). The low generic diversity and strong dominance pattern observed under conventional cultivation indicated a stressed soil environment. In the organically managed system diversity was almost as high as in natural hedgerows with nematode numbers evenly distributed among genera. However, in hedgerows intermediate abundances of bacterial, fungal and plant feeders were recorded and the maturity index (MI) and PPI were higher than those of the organically managed system, indicating that organic farming resulted in a more vigorous, pre-mature and probably more productive soil rather than in a more 'natural' one. The different impacts of organic and mineral fertilizers are discussed.
Note
None
CRAW tags
- AB - Modalité bio
- FREDO biologie et travail du sol
- FREDO fertilisation
- GEO Grèce
- GEO méditérannée
- trophic groups
- agroecosystem
- asparagus cultivation
- comparaison
- diversity
- maturity index
- nématode
WEB tags
Pages
12
Date caractères
2006
Date publication
1 janvier 2006