Table 3 Nitrogen uptake of different treatments during 2004–2009

129.8 ± 28.5b

190.5 ± 60.1ab

178.8 ± 32.2ab

203.2 ± 30.1a

143.7 ± 24b

200.4 ± 42.3a

221.9 ± 23.3a

192.5 ± 24.5a

61.6 ± 9.0b

217.7 ± 20.8a

226.5 ± 11.8a

227.8 ± 18.2a

38.4 ± 8.8b

164.8 ± 33.4a

164.2 ± 5.1a

145.0 ± 10.4a

86.2 ± 11.5b

225.0 ± 19.3a

259.2 ± 19.3a

248.5 ± 25.9a

55.0 ± 12.0b

153.4 ± 17.6a

202.0 ± 34.9a

134.4 ± 9.7a