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9 秸秆还田与氮肥运筹对产量及其构成要素的影响

Table 9 Effects of straw returning and nitrogen fertilizer management on yield and its components

处理 Treatment 穗数（/穴）Panicle number (/hole) 穗粒数Grain number per panicle 千粒重1000-grain weight (g) 产量（g/穴）Yield (g/hole) 2020 2021 平均 Average 2020 2021 平均 Average 2020 2021 平均 Average 2020 2021 平均 Average S1 13.69a 13.16a 13.42a 124.38a 105.66a 115.02a 22.93a 23.38a 23.16a 35.10a 31.38a 33.24a S2 13.38a 12.75b 13.06a 123.30a 104.33a 113.82a 22.32b 23.28a 22.80b 32.95b 29.69b 31.32b N1 13.00b 12.63b 12.81b 122.74a 103.73a 113.23b 22.33b 23.02b 22.68b 31.86b 28.94b 30.40b N2 13.88a 13.25a 13.56a 123.42a 104.61a 114.02ab 22.61ab 23.28ab 22.94a 34.45ab 30.80a 32.63a N3 13.63ab 13.00ab 13.31ab 125.09a 106.37a 115.73a 22.86a 23.53a 23.20a 35.17a 31.62a 33.39a N4 13.63ab 12.94ab 13.28ab 124.11a 105.27a 114.69ab 22.71a 23.48a 23.10a 34.62ab 30.79a 32.71a FS 1.36 4.41* 3.94 0.88 1.85 2.50 32.75** 0.94 18.09** 4.78* 10.09** 9.79** FN 1.95 1.77 2.99 0.76 1.29 1.93 4.30* 5.72** 7.38** 2.28 4.52* 4.50* FS×N 0.06 0.10 0.01 0.09 0.07 0.15 0.50 1.28 0.55 0.01 0.22 0.06