At different stages of growth the organic carrots were bigger because of the lower density. Yield was not significantly different. Pesticide residues were found in 9 of the 12 conventional samples analysed and in 1 of the 12 organic samples. Heavy metal contents were similar. Calcium, phosphorus and boron content were higher in organic carrots.
Results show tendance with regard to dry matter content being higher in conventional samples.
Other analytical analysis and sensory analysis show no differences. Organic carrots have the same or better nutritionnal value than conventionnal one. A field trial is however necessary to control the effect of density on quality. The different quality evaluation methods proved to be complementry in this experiment.