Open access publications in the SLU publication database

In 2010, trials with controlled traffic farming (CTF; controlled traffic farming) were started and harvested six times, starting in 2011. The project includes two
traditional field experiments at Säby 1 and at SITES field experimental station Lönnstorp. as well as a large plot on farm trial at Lydinge farm outside Helsingborg. The results from six years of trials do not show any yield increase
for systems with CTF compared to conventional random traffic farming. The yield in the tracks has been high, in many cases higher than in track-free areas.
It was significantly more compacted in tracks compered to track-free areas in some CTF treatments, but generally the compaction was not at a harmful level. The compaction in tracks rather were close to optimal for high yields. At Säby
1 there were instead a risk of not satisfying plant establishment and growth in dry years as a result of loose soil, with water shortage as a consequence. The results indicate that even ploughless tillage might need a certain recompaction for high crop yield.