减量追氮对冀东地区春小麦磷、钾肥利用及品质的影响

王佳童, 马映辰, 冯燕飞, 路佳慧, 郭振清, 李学利, 李云, 韩玉翠, 林小虎

Effects of Reduction of Nitrogen Topdressing Application on Phosphorus and Potassium Fertilizer Utilization and Quality of Spring Wheat in Eastern Hebei Province

Wang Jiatong, Ma Yingchen, Feng Yanfei, Lu Jiahui, Guo Zhenqing, Li Xueli, Li Yun, Han Yucui, Lin Xiaohu

表2 不同追氮处理对春小麦必需氨基酸含量的影响

Table 2 Effects of different nitrogen topdressing treatments on essential amino acid contents of spring wheat mg/g

指标Index N0 N80 N160 N240 变异系数Coefficient of variation (%) 缬氨酸Val 10.76±0.82b 12.24±0.64a 11.20±0.56ab 11.10±0.52ab 5.63 蛋氨酸Met 3.35±0.17a 3.60±0.36a 3.78±0.16a 3.47±0.15a 5.13 异亮氨酸IIe 7.74±0.22c 9.33±0.47a 8.48±0.38b 7.79±0.10c 8.92 亮氨酸Leu 18.27±0.72c 21.67±0.15a 20.10±0.95b 17.98±0.10c 8.84 苯丙氨酸Phe 12.27±0.88b 14.16±0.73a 12.96±0.54ab 11.73±0.27b 8.22 苏氨酸Thr 7.94±0.67a 8.85±0.21a 8.89±0.34a 8.40±0.75a 5.24 赖氨酸Lys 7.05±0.50a 7.79±0.41a 7.33±0.30a 7.13±0.76a 4.52