Enhancing multifunctional benefits of cover crops – vegetable intercroppin

Kristensen, H.L.

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Organic Eprints

Hanne Lakkenborg Kristensen Institut for Fødevarer  AU-Aarslev 16. -17. november  2011 AARHUS UNIVERSITY   The InterVeg project     Enhancing multifunctional benefits of cover crops – vegetable intercropping  CORE organic II tema område CROPPING  Projektperiode sept. 2011-aug. 2014 Projektleder Stefano Canali CRA  Hanne Lakkenborg Kristensen Institut for Fødevarer  AU-Aarslev 16. -17. november  2011 AARHUS UNIVERSITY   The InterVeg project     Deltagere Consiglio per la Ricerca e la Sperimentazione In Agricoltura (CRA) Associazione Italianan Agricoltura Biologica Universita di Bologna University of Kassel  Aarhus University  University of Maribor Cover crops in the  organically managed agro-ecosystems Stefano Canali, 2011 Hanne Lakkenborg Kristensen Institut for Fødevarer  AU-Aarslev 16. -17. november  2011 AARHUS UNIVERSITY   Synergi med andre projekter  − Orweeds  (IT)  -  agro-ecological,  indirect  methods  for  weed  control  in vegetable production organic systems  − ValorBio  (IT)  -  exploitation  of  vegetables  local  genotypes  for  organic productions  − SOSBio (IT) - indicators for environmental assessment  − VegQure (DK) – Økologiske dyrkningssystemer for grønsagsproduktion - Produkt kvalitet, naturlig regulering, og miljø effekter Hanne Lakkenborg Kristensen Institut for Fødevarer  AU-Aarslev 16. -17. november  2011 AARHUS UNIVERSITY   Nitrat-N i underjorden (kg/ha)020406080C O1 O2 O3  Thorup-Kristensen et al. (in press) European Journal of Agronomy VegQure  Lav-input system med mellemafgrøde giver  højt udbytte, god kvalitet og lavt kvælstoftab Hanne Lakkenborg Kristensen Institut for Fødevarer  AU-Aarslev 16. -17. november  2011 AARHUS UNIVERSITY    Cash crop intercropped with a cover crop: − most of system resources should remain available for the cash crop, then crop management should aim at 1. optimizing the ecological services within the field/farm 2. reducing competition between main and cover crop Cover crops introduced in the vegetable system as living mulch Hanne Lakkenborg Kristensen Institut for Fødevarer  AU-Aarslev 16. -17. november  2011 AARHUS UNIVERSITY   The proper management of living mulch in vegetable production systems (compared to sole cropping) allows: − comparable yields − higher produce quality − lower environmental impact (i.e. reduction of N leaching) − higher profitability (i.e. due to off-farm input reduction)  Interveg research hypothesis Hanne Lakkenborg Kristensen Institut for Fødevarer  AU-Aarslev 16. -17. november  2011 AARHUS UNIVERSITY   Cauliflower          Leek Cauliflower          Leek Cauliflower          Leek Cauliflower          Artichoke DK    WP    Study areas 2  Yield and harvest quality 2 Benefits and costs assessment 3 N, P, K availability assessment 3  N leaching potential risk 4  Pests/beneficial insects management 5 Energy saving quantification 5  Weed management and competition assessment 6  Stakeholders involvement 6  Dissemination experimental sites experimental sites experimental sites experimental sites experimental sites/pilot farms experimental sites/pilot farms pilot farms pilot farms G  SLO  IT Hanne Lakkenborg Kristensen Institut for Fødevarer  AU-Aarslev 16. -17. november  2011 AARHUS UNIVERSITY   System management Living mulch early and late sowing, row spacing, root pruning affects competition between crop and living mulch? Cultivars Hybrid cultivar higher competitive ability compared to local cultivar? Nitrogen fertilisation Relationship between N fertilisation, living mulch competition, N losses and crop yields? Experimental factors Hanne Lakkenborg Kristensen Institut for Fødevarer  AU-Aarslev 16. -17. november  2011 AARHUS UNIVERSITY   Robuste systemer med forbedret økonomisk udbytte, lavere belastning for miljøet og højere biodiversitet Perspektiver for økologisk grønsagsdyrkning og samfundet 

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