Summary
This on-farm field trial compared soil health outcomes under animal traction versus motorized operations in organic market gardening, using multiple soil physical, hydrophysical, and biological indicators measured across three campaigns during potato cultivation. Animal traction demonstrated superior soil health characteristics, including higher microbial biomass and aggregation, faster water infiltrability with greater spatial variability, and no negative correlation between operational passes and microbial biomass, whereas motorized traction showed declining microbial biomass with increased passes and more homogeneous but lower infiltrability. The study provides evidence that animal traction may mitigate soil compaction risks inherent to intensive organic horticultural systems.
UK applicability
The findings may be relevant to UK organic vegetable producers facing similar compaction challenges from repeated cultivation and irrigation passes, though the trial's French context and focus on potato cultivation would benefit from UK-specific replication. The results could inform organic farming policy and best-practice guidance for soil health management in British horticulture.
Key measures
Soil compaction, bulk density, aggregation, water infiltrability, microbial biomass, microbial activity, penetrometry, number of machine passes
Outcomes reported
The study compared physical, hydrophysical, and biological soil health parameters between animal traction and motorized traction operations on an organic market-garden farm during a potato cultivation season. Results showed differentiation in compaction, aggregation, infiltrability, and microbial activity between the two practices across three sampling campaigns.
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