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3 不同追氮处理对春小麦非必需氨基酸含量的影响

Table 3 Effects of different nitrogen topdressing treatments on non-essential amino acid contents of spring wheat mg/g

指标Index N0 N80 N160 N240 变异系数Coefficient of variation (%) 天冬氨酸Asp 12.65±0.53b 14.40±0.77a 13.29±0.69ab 12.70±0.27b 6.13 酪氨酸Tyr 7.58±0.65b 9.10±0.03a 7.61±0.56b 7.95±0.35b 8.82 丝氨酸Ser 14.22±0.75c 15.79±0.70ab 14.40±0.97bc 16.54±0.57a 7.32 谷氨酸Glu 82.87±6.81b 96.82±4.67a 95.10±2.77a 79.08±0.03b 9.97 甘氨酸Gly 11.46±0.38b 12.55±0.23a 11.84±0.69ab 11.84±0.29ab 3.82 丙氨酸Ala 10.35±0.16a 11.13±0.38a 11.11±0.65a 10.45±0.92a 3.87 胱氨酸Cys 3.89±0.25a 4.41±0.19a 4.15±0.68a 3.82±0.20a 6.56 组氨酸His 6.09±0.50a 6.85±0.08a 6.77±0.93a 6.44±0.04a 5.25 精氨酸Arg 12.02±0.26b 14.18±0.88a 12.92±0.81ab 12.20±0.65b 7.65 脯氨酸Pro 28.59±0.56c 34.04±1.35a 30.97±1.07b 27.84±0.15c 9.20 合计Total 189.72±0.53c 219.27±0.77a 208.16±0.69b 188.86±0.27c 6.84