Fig. 5: Predicted values of annual average forage quality.
From: Plant diversity effects on forage quality, yield and revenues of semi-natural grasslands
Predicted annual average forage quality as a function of plant diversity levels and management intensity include metabolizable energy content (MJ kg−1) a, milk production potential (kg kg−1) b, crude protein content (g kg−1) c, utilizable crude protein content (g kg−1) d, organic matter content (g kg−1) e, and neutral detergent fiber content (g kg−1;) f. *, **, *** denote significance at the 5%, 1%, and 0.1% level of the plant diversity effect per management intensity, respectively (corrected for multiple comparisons). The significance levels are based on a mixed effect model, see Eq. (4). The corresponding coefficients for the plant diversity effect per management intensity can be found in Supplementary Tables 3–5. Utilizable crude protein content was only measured for the first cut of the year. Note that the y-axis break in the figure of organic matter content. Source data are provided as a Source Data file.
