Organiske startgødninger i økologisk dyrkning af sukkerroer

Conclusion

In all year, placement of organic fertilisers at drilling resulted in increased yields. Yield increases differ between trials, years and placement methodology. Generally best results have been obtained with liquid fertilisers or solids fertilisers when applied 1-2 weeks (placed with GPS) prior to drilling. In 2020, there was, however, no difference between liquid and solid fertiliser and less effect of placing pelleted hen manure prior to drilling.

Use of organic fertiliser can be technically challenging due to high application rates. Equipment for organic fertiliser is less common and cannot handle some liquid fertiliser.