不同氮肥处理对荸荠产量、淀粉积累速率及淀粉合成酶活性的影响

高美萍, 陶运荣, 蒋慧萍, 胡一凤, 林志城, 方彦蓉, 欧阳秀, 江文

Effects of Different Nitrogen Fertilizer Treatments on Yield, Starch Accumulation Rate and Starch Synthase Activity of Water Chestnut

Gao Meiping, Tao Yunrong, Jiang Huiping, Hu Yifeng, Lin Zhicheng, Fang Yanrong, Ouyang Xiu, Jiang Wen

表2 不同氮肥处理对荸荠农艺性状及产量的影响

Table 2 Effects of different nitrogen fertilizer treatments on agronomic characteristics and yields of water chestnut

施氮量 Nitrogen application rate 施氮方式 Nitrogen application method 株高 Plant height (cm) 分蘖数 Tiller number 平均单果重 Average single fruit weight (g) 产量 Yield (kg/hm2) CK － 74.8±1.3b 6.3±0.8c 14.2±0.6b 15 861±320e N1 T1 84.2±1.5a 8.4±0.7ab 15.8±0.7a 24 444±356d T2 87.1±1.4a 9.3±1.1b 16.3±0.8a 27 375±415b T3 82.5±1.7a 8.9±1.0ab 16.8±1.2a 26 889±312c N2 T1 87.2±1.5a 10.0±1.3b 16.4±0.6a 27 657±356b T2 88.3±1.6a 10.5±1.2a 16.2±0.7a 30 426±426a T3 83.7±2.1a 11.5±1.1a 16.9±0.9a 34 215±487a N3 T1 86.6±1.4a 10.1±1.3b 15.4±1.0a 25 560±325c T2 89.1±1.3a 11.2±1.2a 15.9±1.1a 25 825±352c T3 83.4±1.4a 10.6±1.0b 16.8±1.1a 28 117±321b