Contrasting impacts of two weed species on lowbush blueberry fertilizer nitrogen uptake in a commercial field
Fig 4
Fertilizer uptake efficiency (FUeff) (mg N kg-1 root) of lowbush blueberry (LB), sweet fern (SF) and poverty oat grass (POG).
Values are mean ± SD across weed density levels. Values not sharing the same letters are significantly different at P < 0.05.