Influence of reduced tillage and fertilisation regime on soil quality indicators in an organic potato production system
Type de document
journalArticle
Langue source
Anglais
Titre français
Influence du travail du sol réduit et du régime de fertilisation sur les indicateurs de qualité du sol dans un système de production biologique de pommes de terre: Agriculture biologique et horticulture: Vol 34, No 2
Titre anglais
Influence of reduced tillage and fertilisation regime on soil quality indicators in an organic potato production system: Biological Agriculture & Horticulture: Vol 34, No 2
Auteur(s)
- DRAKOPOULOS Dimitrios
- SCHOLBERG J.
Editeur(s)
Autre(s)
Id
4B3F58YV
Version
2719
Date ajout
28 octobre 2020 12:24
Date modification
5 janvier 2021 10:19
Résumé
The aim of this study was to assess the short-term effects of tillage practice (reduced tillage – RT; standard tillage – ST) and fertilisation regime (solid cattle manure – SCM; lucerne pellets – LP; grass/clover silage – GCS) on soil quality indicators in an organic potato (Solanum tuberosum L.) production system. Use of RT enhanced the biomass and number of earthworms compared with ST. Concentrations of soil mineral N ( and ) showed similar decreasing patterns over time across both tillage systems during the potato production period. However, soil mineral N was overall higher in the 0–15 cm soil layer for RT and in the 15–30 cm layer for ST. Soil bulk density was higher for RT than ST at 1, 4 and 7 weeks after planting, while a linear reverse correlation was found between soil bulk density and tuber yield. Although both soil temperature and soil moisture content were not found to be greatly affected by tillage practice, net soil N mineralisation was estimated to be 65 kg N ha−1 greater under ST than RT for the potato production period. The application of LP and GCS resulted in higher mid- and end-season soil mineral N concentrations and crop N accumulation at harvest compared to SCM. During initial adaptation to reduced tillage practices in organic potato systems, farmers need to carefully weigh potential conflicts between initial yield reductions and soil conservation goals.
Note
None
CRAW tags
- AB - Spécifique
- FREDO biologie et travail du sol
- FREDO fertilisation
- labour
- pomme de terre
WEB tags
Titre de la publication
Biological Agriculture & Horticulture
Volume
34
Date caractères
2017
Date publication
1 janvier 2017