控释尿素对寒地水稻农艺性状、产量及氮肥利用率的影响

姬景红, 刘双全, 马星竹, 郝小雨, 郑雨, 赵月, 王晓军, 匡恩俊

Effects of Different Controlled-Release Urea on Agronomic Traits, Yield and Nitrogen Use Efficiency of Cold Region Rice

Ji Jinghong, Liu Shuangquan, Ma Xingzhu, Hao Xiaoyu, Zheng Yu, Zhao Yue, Wang Xiaojun, Kuang Enjun

表2 不同处理对水稻农艺性状的影响

Table 2 Effects of different treatments on rice agronomic traits

地点 Site 年份 Year 处理 Treatment 株高 Plant height (cm) 穗长 Panicle length (cm) 有效分蘖数（/穴） Number of effective tillers (/hole) 有效穗数 Effective panicles (m2) 千粒重 1000-grain weight (g) 穗实粒数 Filled grain per panicle 穗粒数 Grain number per panicle 结实率 Seed-setting rate (%) 方正Fangzheng 2019 N0 90.2b 16.8b 13.8c 289.6c 26.3a 83.1c 86.9c 95.6a CF 102.2a 21.6a 16.0a 335.6a 24.5c 138.3a 144.1a 96.0a BU 106.3a 21.2a 15.2ab 318.7ab 24.9c 131.2ab 138.4ab 94.8a CRU60 100.5a 20.7a 15.0b 310.5b 25.5b 128.3b 132.5b 96.8a CRU90 103.1a 20.8a 15.1ab 316.7ab 25.6b 134.4a 139.4a 96.4a 2020 N0 92.3b 15.8b 15.8c 331.8c 25.2a 72.1c 75.5c 95.5a CF 106.3a 18.5a 18.6a 391.5a 23.5c 115.5a 120.7a 95.7a BU 107.6a 18.6a 17.4b 366.4b 24.1c 107.3ab 113.9ab 94.2a CRU60 104.2a 17.7a 17.2b 361.2b 24.7ab 106.3b 111.5b 95.3a CRU90 104.7a 17.8a 17.7ab 371.9ab 24.5b 113.2a 117.4a 96.4a 阿城Acheng 2019 N0 88.8b 16.4b 13.5b 282.8b 26.5a 82.1c 84.7c 96.9a CF 97.9a 20.9a 15.3a 322.3a 25.1bc 135.0a 139.8a 96.6a BU 101.0a 20.7a 15.5a 325.1a 24.9c 121.8b 128.0b 95.2a CRU60 100.3a 20.5a 15.2a 319.4a 25.5b 120.1b 124.4b 96.5a CRU90 101.6a 20.4a 14.9a 318.4a 25.6b 132.1a 136.5a 96.8a 2020 N0 90.6b 15.6b 14.9b 313.4b 25.6a 68.5c 71.3c 96.1a CF 104.2a 18.1a 17.3a 362.8a 24.1bc 115.5a 120.7a 95.7a BU 104.9a 17.9a 16.6a 349.2a 23.8c 106.3b 113.8b 93.4b CRU60 103.6a 17.6a 16.7a 350.4a 24.6b 104.3b 108.9b 95.8a CRU90 104.5a 17.5a 16.4a 345.4a 24.8b 112.0a 116.8a 96.1a