秸秆还田与氮肥运筹对寒地水稻光合特性和产量的影响

胡聪聪, 李红宇, 孙显龙, 王童, 赵海成, 范名宇, 张巩亮

Effects of Straw Returning and Nitrogen Fertilizer Management on Photosynthetic Characteristics and Yield of Rice in Cold Region

Hu Congcong, Li Hongyu, Sun Xianlong, Wang Tong, Zhao Haicheng, Fan Mingyu, Zhang Gongliang

表3 秸秆还田与氮肥运筹对分蘖性状的影响

Table 3 Effects of straw returning and nitrogen application on tillering traits

处理 Treatment 最高分蘖数（/穴） Maximum number of tillers (/hole) 有效分蘖数（/穴） Number of effective tillers (/hole) 分蘖成穗率 Percentage of tillering to head (%) 增长速率 Growth rate (%) 消亡速率 Death rate (%) S1 17.36a 15.54a 67.92a 53.63a 13.14a S2 17.28a 15.40a 67.39a 52.89a 14.11a N1 17.16b 14.85b 66.49b 52.03b 16.27a N2 17.67a 16.19a 70.10a 55.24a 11.66b N3 17.24b 15.55ab 67.48ab 52.89b 12.91ab N4 17.21b 15.30b 66.54b 52.88b 13.66ab FS 0.72 0.32 0.24 2.17 0.57 FN 5.49** 5.02** 2.45 7.75** 2.36 FS×N 0.06 0.00 0.05 0.73 0.01