Table 4 Statistically significant differences between biomass yields of different fertiliser application treatments. Treatments within a specific year (annual growing cycle) are significantly different when no letters are the same (α = 0.05)
Fertiliser type | Mineral N fertiliser | Digestate | ||||||
|---|---|---|---|---|---|---|---|---|
N application rate (kg ha 1 year−1) | 0 | 180 | 360 | 90 | 180 | 270 | 360 | 450 |
Scenario Year | SC1 | SC2 | SC3 | SC4 | SC5 | SC6 | SC7 | SC8 |
2010 | a | bcde | bcde | a | b | bc | cde | e |
2011 | a | bc | b | b | cd | def | f | cdef |
2012 | a | d | b | c | b | b | b | e |
2013 | a | b | b | b | b | c | cde | e |
2014 | a | b | ab | ab | c | cd | d | e |
2015 | a | b | b | b | b | cd | cd | e |