新型化控组合对玉米光合性能和产量提升的影响

王志, 周文丽, 赵耀, 刘正, 李从锋, 张仁和

Effects of New Chemical Control Combinations on Photosynthetic Performance and Yield Improvement of Maize

Wang Zhi, Zhou Wenli, Zhao Yao, Liu Zheng, Li Congfeng, Zhang Renhe

表2 不同化控方式对玉米产量构成因素及收获指数的影响

Table 2 Effects of different chemical control methods on yield components and harvest index of maize

年份Year 处理Treatment 穗数Ear number (×104 /hm2) 穗粒数Kernels per ear 千粒重1000-grain weight (g) 收获指数HI 2023 CK 7.54±0.6a 470.6±11.2b 304.5±8.5b 0.50±0.02b ETH 7.64±1.2a 433.4±13.6c 305.0±11.2b 0.55±0.01a CAD 7.69±1.3a 506.2±2.1a 339.5±4.4a 0.46±0.01c PHS 7.60±0.6a 495.2±5.1a 320.9±19.6a 0.53±0.02ab 2024 CK 7.73±1.6b 497.3±27.8ab 312.9±9.1b 0.50±0.01b ETH 7.74±2.1b 466.7±33.3c 307.9±4.6b 0.54±0.02a CAD 7.99±1.3a 512.8±11.0a 334.8±2.3a 0.45±0.01c PHS 8.07±1.2a 518.5±15.7a 328.3±9.5ab 0.53±0.03ab 年份Year ns * ns ns 处理Treatment ns ** * **