Chinese Journal OF Rice Science ›› 2017, Vol. 31 ›› Issue (1): 50-64.DOI: 10.16819/j.1001-7216.2017.6072
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Haiyue WANG1, Yue LI1, Yongjian SUN1,*, Yinghong LI1, Mingjin JIANG1, Chunyu WANG1, Jianhong ZHAO1, Yuanyuan SUN2, Hui XU1, Fengjun YAN1, Jun MA1,*
Received:
2016-05-02
Revised:
2016-07-28
Online:
2017-01-20
Published:
2017-01-10
Contact:
Yongjian SUN, Jun MA
王海月1, 李玥1, 孙永健1,*(), 李应洪1, 蒋明金1, 王春雨1, 赵建红1, 孙园园2, 徐徽1, 严奉君1, 马均1,*()
通讯作者:
孙永健,马均
基金资助:
CLC Number:
Haiyue WANG, Yue LI, Yongjian SUN, Yinghong LI, Mingjin JIANG, Chunyu WANG, Jianhong ZHAO, Yuanyuan SUN, Hui XU, Fengjun YAN, Jun MA. Effects of Slow-release Urea on Nitrogen Utilization and Yield in Mechanically-transplanted Rice under Different Nitrogen Application Rates[J]. Chinese Journal OF Rice Science, 2017, 31(1): 50-64.
王海月, 李玥, 孙永健, 李应洪, 蒋明金, 王春雨, 赵建红, 孙园园, 徐徽, 严奉君, 马均. 不同施氮水平下缓释氮肥配施对机插稻氮素利用特征及产量的影响[J]. 中国水稻科学, 2017, 31(1): 50-64.
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URL: http://www.ricesci.cn/EN/10.16819/j.1001-7216.2017.6072
处理 Treatment | 有效穗数 Effective panicle number /(×104hm-2) | 每穗实粒数 Filled spikelet number per panicle | 结实率 Seed setting rate /% | 千粒重 1000-grain weight /g | 实际产量 Actual grain yield /(kg·hm-2) |
---|---|---|---|---|---|
N1 | |||||
R0 | 226.3±0.5 d | 116.2±0.6 d | 90.98±0.78 a | 36.13±0.18 a | 9 491.2±168.6 d |
R1 | 238.6±2.0 b | 133.8±1.6 a | 86.86±0.83 b | 36.64±1.05 a | 11 661.3±110.9 a |
R2 | 254.5±5.6 a | 130.2±1.4 b | 86.57±0.59 b | 36.45±0.40 a | 11 808.6±66.2 a |
R3 | 227.8±4.1 cd | 135.9±1.8 a | 84.83±1.14 c | 37.01±1.03 a | 11 424.7±355.2 b |
R4 | 255.4±1.5 a | 122.8±2.0 c | 85.75±0.96 bc | 36.44±0.83 a | 11 408.2±192.8 b |
R5 | 230.2±1.9 c | 127.7±0.7 b | 83.07±0.24 d | 36.64±0.80 a | 10 706.9±179.1 c |
平均 Average | 238.8±0.2 | 127.8±0.4 | 86.34±0.58 | 36.55±0.23 | 11 083.5±44.3 |
N2 | |||||
R0 | 226.3±0.5 d | 116.2±0.6 d | 90.98±0.78 a | 36.13±0.18 a | 9 491.2±168.6 d |
R1 | 258.4±3.9 a | 136.9±0.7 b | 85.35±1.18 c | 34.03±0.61 c | 11 914.9±99.9 ab |
R2 | 255.3±1.2 ab | 142.4±1.5 c | 87.39±0.86 b | 34.49±0.26 c | 12 015.4±26.2 a |
R3 | 236.0±6.0 c | 140.6±6.3 a | 87.64±1.24 b | 35.41±0.43 ab | 11 704.6±22.9 b |
R4 | 251.9±1.2 b | 129.8±1.1 a | 87.22±1.82 b | 35.84±1.05 ab | 11 696.9±32.8 b |
R5 | 226.4±1.6 d | 139.9±0.7 a | 83.96±0.48 d | 34.76±0.09 bc | 10 999.2±78.6 c |
平均 Average | 242.4±1.7 | 134.3±0.9 | 87.09±0.20 | 35.11±0.16 | 11 303.7±30.3 |
F值 F value | |||||
N | 14.43* | 75.51* | 2.95 | 436.12** | 125.34** |
R | 107.37** | 83.02** | 36.75** | 1.75 | 184.32** |
N×R | 12.68** | 7.30** | 3.28* | 2.82* | 2.79* |
Table 1 Effects of slow-release urea combined with conventional urea on yield and its components in mechanically-transplanted rice under different N application rates.
处理 Treatment | 有效穗数 Effective panicle number /(×104hm-2) | 每穗实粒数 Filled spikelet number per panicle | 结实率 Seed setting rate /% | 千粒重 1000-grain weight /g | 实际产量 Actual grain yield /(kg·hm-2) |
---|---|---|---|---|---|
N1 | |||||
R0 | 226.3±0.5 d | 116.2±0.6 d | 90.98±0.78 a | 36.13±0.18 a | 9 491.2±168.6 d |
R1 | 238.6±2.0 b | 133.8±1.6 a | 86.86±0.83 b | 36.64±1.05 a | 11 661.3±110.9 a |
R2 | 254.5±5.6 a | 130.2±1.4 b | 86.57±0.59 b | 36.45±0.40 a | 11 808.6±66.2 a |
R3 | 227.8±4.1 cd | 135.9±1.8 a | 84.83±1.14 c | 37.01±1.03 a | 11 424.7±355.2 b |
R4 | 255.4±1.5 a | 122.8±2.0 c | 85.75±0.96 bc | 36.44±0.83 a | 11 408.2±192.8 b |
R5 | 230.2±1.9 c | 127.7±0.7 b | 83.07±0.24 d | 36.64±0.80 a | 10 706.9±179.1 c |
平均 Average | 238.8±0.2 | 127.8±0.4 | 86.34±0.58 | 36.55±0.23 | 11 083.5±44.3 |
N2 | |||||
R0 | 226.3±0.5 d | 116.2±0.6 d | 90.98±0.78 a | 36.13±0.18 a | 9 491.2±168.6 d |
R1 | 258.4±3.9 a | 136.9±0.7 b | 85.35±1.18 c | 34.03±0.61 c | 11 914.9±99.9 ab |
R2 | 255.3±1.2 ab | 142.4±1.5 c | 87.39±0.86 b | 34.49±0.26 c | 12 015.4±26.2 a |
R3 | 236.0±6.0 c | 140.6±6.3 a | 87.64±1.24 b | 35.41±0.43 ab | 11 704.6±22.9 b |
R4 | 251.9±1.2 b | 129.8±1.1 a | 87.22±1.82 b | 35.84±1.05 ab | 11 696.9±32.8 b |
R5 | 226.4±1.6 d | 139.9±0.7 a | 83.96±0.48 d | 34.76±0.09 bc | 10 999.2±78.6 c |
平均 Average | 242.4±1.7 | 134.3±0.9 | 87.09±0.20 | 35.11±0.16 | 11 303.7±30.3 |
F值 F value | |||||
N | 14.43* | 75.51* | 2.95 | 436.12** | 125.34** |
R | 107.37** | 83.02** | 36.75** | 1.75 | 184.32** |
N×R | 12.68** | 7.30** | 3.28* | 2.82* | 2.79* |
Fig. 2. Effects of slow-release urea combined with conventional urea on the dynamic changes of stem and tiller numbers in mechanically-transplanted rice under different N application rates.
处理 Treatment | 净光合速率 Pn/(μmol·m-2 s-1) | 气孔导度 Gs/(mol·m-2s-1) | |||||
---|---|---|---|---|---|---|---|
齐穗期 FHS | 齐穗后15 d 15 d after FHS | 齐穗后30 d 30 d after FHS | 齐穗期 FHS | 齐穗后15 d 15 d after FHS | 齐穗后30 d 30 d after FHS | ||
N1 | |||||||
R0 | 18.31±0.30 e | 15.34±0.25 d | 11.38±0.06 c | 0.73±0.01 e | 0.45±0.00 c | 0.22±0.01 d | |
R1 | 22.74±0.16 b | 19.43±0.46 a | 15.26±0.24 a | 1.04±0.04 b | 0.84±0.02 a | 0.56±0.04 a | |
R2 | 23.89±0.39 a | 19.47±0.33 a | 15.28±0.21 a | 1.15±0.01 a | 0.88±0.03 a | 0.49±0.01 b | |
R3 | 21.21±0.67 c | 18.48±0.42 ab | 15.08±0.17 a | 0.96±0.06 c | 0.67±0.08 b | 0.49±0.02 b | |
R4 | 21.47±0.35 c | 18.53±0.10 ab | 15.20±0.13 a | 0.98±0.14 bc | 0.68±0.04 b | 0.51±0.01 b | |
R5 | 20.35±0.32 d | 17.24±0.38 c | 13.64±0.31 b | 0.84±0.02 d | 0.60±0.02 b | 0.35±0.01 c | |
平均 Average | 21.33±0.12 | 18.08±0.08 | 14.31±0.08 | 0.95±0.03 | 0.69±0.02 | 0.44±0.01 | |
N2 | |||||||
R0 | 18.31±0.30 e | 15.34±0.25 e | 11.38±0.06 d | 0.73±0.01 e | 0.45±0.00 d | 0.22±0.01 e | |
R1 | 23.77±0.96 ab | 18.43±1.25 ab | 17.15±1.03 a | 0.93±0.03 d | 0.81±0.16 ab | 0.55±0.00 a | |
R2 | 24.46±0.17 a | 18.73±0.95 a | 17.34±0.72 a | 1.11±0.01 ab | 0.51±0.01 cd | 0.47±0.02 c | |
R3 | 21.67±0.73 d | 17.48±1.63 bc | 12.37±0.71 c | 1.03±0.01 bc | 0.84±0.15 a | 0.51±0.00 b | |
R4 | 23.65±0.73 b | 17.16±0.09 c | 14.94±0.36 b | 1.13±0.10 a | 0.71±0.08 b | 0.48±0.02 bc | |
R5 | 22.77±0.13 c | 16.25±0.08 d | 12.69±1.52 c | 1.00±0.07 cd | 0.59±0.03 c | 0.42±0.00 d | |
平均 Average | 22.44±0.15 | 17.23±0.31 | 14.31±0.48 | 0.99±0.00 | 0.65±0.01 | 0.44±0.00 | |
F值F value | |||||||
N | 572.79** | 18.17* | 0.00 | 5.89 | 33.33* | 0.79 | |
R | 86.96** | 22.75** | 65.24** | 28.38** | 16.68** | 225.38** | |
N×R | 5.08** | 0.61 | 14.30** | 4.58** | 7.38** | 5.43** | |
处理 Treatment | 胞间CO2浓度 Ci/(μmol·mol-1) | 表观叶肉导度 AMC/(mmol·m-2 s-1) | |||||
齐穗期 FHS | 齐穗后15 d 15 d after FHS | 齐穗后30 d 30 d after FHS | 齐穗期 FHS | 齐穗后15 d 15 d after FHS | 齐穗后30 d 30 d after FHS | ||
N1 | |||||||
R0 | 320.3±0.0 a | 336.9±4.9 a | 347.5±9.8 a | 57.17±0.92 e | 45.52±0.09 d | 32.77±0.77 e | |
R1 | 312.4±1.0 c | 315.7±0.6 c | 313.1±2.1 c | 72.81±0.74 b | 61.53±1.56 a | 46.27±1.48 c | |
R2 | 310.8±0.4 c | 311.8±2.0 c | 306.8±4.3 c | 76.89±1.36 a | 62.46±1.32 a | 49.81±0.76 a | |
R3 | 315.5±1.4 b | 324.7±2.1 b | 327.8±2.7 b | 67.22±1.86 c | 56.92±1.58 b | 48.17±0.85 b | |
R4 | 312.5±1.6 c | 324.2±3.5 b | 330.0±5.5 b | 68.71±1.32 c | 57.15±0.33 b | 46.37±0.13 c | |
R5 | 315.6±0.6 b | 330.6±1.2 a | 339.7±1.9 a | 64.50±1.12 d | 52.13±1.35 c | 40.15±1.06 d | |
平均 Average | 314.5±0.3 | 324.0±0.4 | 327.5±0.4 | 67.88±0.39 | 55.95±0.26 | 43.93±0.27 | |
N2 | |||||||
R0 | 320.3±0.0 a | 336.9±4.9 a | 347.5±9.8 a | 57.17±0.92 d | 45.52±0.09 c | 32.77±0.77 c | |
R1 | 297.1±1.3 d | 293.3±0.5 d | 312.7±3.5 bc | 80.01±2.90 ab | 62.82±4.15 a | 54.82±2.69 a | |
R2 | 299.2±0.5 d | 296.4±1.4 cd | 304.7±13.0 c | 81.73±0.72 a | 63.20±3.48 a | 57.04±4.79 a | |
R3 | 306.0±2.9 b | 314.3±2.3 b | 313.3±3.9 bc | 70.82±3.05 c | 55.58±4.79 b | 39.50±2.77 c | |
R4 | 302.9±0.2 c | 298.5±5.3 c | 310.6±12.2 bc | 78.09±2.38 b | 57.50±0.72 b | 48.16±3.06 b | |
R5 | 293.4±6.7 e | 292.4±9.0 d | 320.4±5.5 b | 77.61±1.35 b | 55.61±1.94 b | 39.65±5.42 c | |
平均 Average | 303.2±1.9 | 305.3±0.8 | 318.2±2.5 | 74.24±0.81 | 56.70±1.10 | 45.32±1.65 | |
F值 F value | |||||||
N | 79.99* | 7350.34** | 61.05* | 186.73** | 1.19 | 1.73 | |
R | 57.47** | 49.79** | 21.53** | 114.34** | 41.82** | 51.76** | |
N×R | 20.44** | 14.41** | 2.26 | 10.11** | 0.67 | 8.79** |
Table 2 Effects of slow-release urea combined with conventional urea on photosynthetic characteristics in mechanically-transplanted rice under different N application rates.
处理 Treatment | 净光合速率 Pn/(μmol·m-2 s-1) | 气孔导度 Gs/(mol·m-2s-1) | |||||
---|---|---|---|---|---|---|---|
齐穗期 FHS | 齐穗后15 d 15 d after FHS | 齐穗后30 d 30 d after FHS | 齐穗期 FHS | 齐穗后15 d 15 d after FHS | 齐穗后30 d 30 d after FHS | ||
N1 | |||||||
R0 | 18.31±0.30 e | 15.34±0.25 d | 11.38±0.06 c | 0.73±0.01 e | 0.45±0.00 c | 0.22±0.01 d | |
R1 | 22.74±0.16 b | 19.43±0.46 a | 15.26±0.24 a | 1.04±0.04 b | 0.84±0.02 a | 0.56±0.04 a | |
R2 | 23.89±0.39 a | 19.47±0.33 a | 15.28±0.21 a | 1.15±0.01 a | 0.88±0.03 a | 0.49±0.01 b | |
R3 | 21.21±0.67 c | 18.48±0.42 ab | 15.08±0.17 a | 0.96±0.06 c | 0.67±0.08 b | 0.49±0.02 b | |
R4 | 21.47±0.35 c | 18.53±0.10 ab | 15.20±0.13 a | 0.98±0.14 bc | 0.68±0.04 b | 0.51±0.01 b | |
R5 | 20.35±0.32 d | 17.24±0.38 c | 13.64±0.31 b | 0.84±0.02 d | 0.60±0.02 b | 0.35±0.01 c | |
平均 Average | 21.33±0.12 | 18.08±0.08 | 14.31±0.08 | 0.95±0.03 | 0.69±0.02 | 0.44±0.01 | |
N2 | |||||||
R0 | 18.31±0.30 e | 15.34±0.25 e | 11.38±0.06 d | 0.73±0.01 e | 0.45±0.00 d | 0.22±0.01 e | |
R1 | 23.77±0.96 ab | 18.43±1.25 ab | 17.15±1.03 a | 0.93±0.03 d | 0.81±0.16 ab | 0.55±0.00 a | |
R2 | 24.46±0.17 a | 18.73±0.95 a | 17.34±0.72 a | 1.11±0.01 ab | 0.51±0.01 cd | 0.47±0.02 c | |
R3 | 21.67±0.73 d | 17.48±1.63 bc | 12.37±0.71 c | 1.03±0.01 bc | 0.84±0.15 a | 0.51±0.00 b | |
R4 | 23.65±0.73 b | 17.16±0.09 c | 14.94±0.36 b | 1.13±0.10 a | 0.71±0.08 b | 0.48±0.02 bc | |
R5 | 22.77±0.13 c | 16.25±0.08 d | 12.69±1.52 c | 1.00±0.07 cd | 0.59±0.03 c | 0.42±0.00 d | |
平均 Average | 22.44±0.15 | 17.23±0.31 | 14.31±0.48 | 0.99±0.00 | 0.65±0.01 | 0.44±0.00 | |
F值F value | |||||||
N | 572.79** | 18.17* | 0.00 | 5.89 | 33.33* | 0.79 | |
R | 86.96** | 22.75** | 65.24** | 28.38** | 16.68** | 225.38** | |
N×R | 5.08** | 0.61 | 14.30** | 4.58** | 7.38** | 5.43** | |
处理 Treatment | 胞间CO2浓度 Ci/(μmol·mol-1) | 表观叶肉导度 AMC/(mmol·m-2 s-1) | |||||
齐穗期 FHS | 齐穗后15 d 15 d after FHS | 齐穗后30 d 30 d after FHS | 齐穗期 FHS | 齐穗后15 d 15 d after FHS | 齐穗后30 d 30 d after FHS | ||
N1 | |||||||
R0 | 320.3±0.0 a | 336.9±4.9 a | 347.5±9.8 a | 57.17±0.92 e | 45.52±0.09 d | 32.77±0.77 e | |
R1 | 312.4±1.0 c | 315.7±0.6 c | 313.1±2.1 c | 72.81±0.74 b | 61.53±1.56 a | 46.27±1.48 c | |
R2 | 310.8±0.4 c | 311.8±2.0 c | 306.8±4.3 c | 76.89±1.36 a | 62.46±1.32 a | 49.81±0.76 a | |
R3 | 315.5±1.4 b | 324.7±2.1 b | 327.8±2.7 b | 67.22±1.86 c | 56.92±1.58 b | 48.17±0.85 b | |
R4 | 312.5±1.6 c | 324.2±3.5 b | 330.0±5.5 b | 68.71±1.32 c | 57.15±0.33 b | 46.37±0.13 c | |
R5 | 315.6±0.6 b | 330.6±1.2 a | 339.7±1.9 a | 64.50±1.12 d | 52.13±1.35 c | 40.15±1.06 d | |
平均 Average | 314.5±0.3 | 324.0±0.4 | 327.5±0.4 | 67.88±0.39 | 55.95±0.26 | 43.93±0.27 | |
N2 | |||||||
R0 | 320.3±0.0 a | 336.9±4.9 a | 347.5±9.8 a | 57.17±0.92 d | 45.52±0.09 c | 32.77±0.77 c | |
R1 | 297.1±1.3 d | 293.3±0.5 d | 312.7±3.5 bc | 80.01±2.90 ab | 62.82±4.15 a | 54.82±2.69 a | |
R2 | 299.2±0.5 d | 296.4±1.4 cd | 304.7±13.0 c | 81.73±0.72 a | 63.20±3.48 a | 57.04±4.79 a | |
R3 | 306.0±2.9 b | 314.3±2.3 b | 313.3±3.9 bc | 70.82±3.05 c | 55.58±4.79 b | 39.50±2.77 c | |
R4 | 302.9±0.2 c | 298.5±5.3 c | 310.6±12.2 bc | 78.09±2.38 b | 57.50±0.72 b | 48.16±3.06 b | |
R5 | 293.4±6.7 e | 292.4±9.0 d | 320.4±5.5 b | 77.61±1.35 b | 55.61±1.94 b | 39.65±5.42 c | |
平均 Average | 303.2±1.9 | 305.3±0.8 | 318.2±2.5 | 74.24±0.81 | 56.70±1.10 | 45.32±1.65 | |
F值 F value | |||||||
N | 79.99* | 7350.34** | 61.05* | 186.73** | 1.19 | 1.73 | |
R | 57.47** | 49.79** | 21.53** | 114.34** | 41.82** | 51.76** | |
N×R | 20.44** | 14.41** | 2.26 | 10.11** | 0.67 | 8.79** |
处理 Treatment | 叶面积指数 LAI | 齐穗期高效 叶面积指数 High effective LAI at full heading stage | 齐穗期高效 叶面积率 High effective leaf area rate at full heading stage /% | 拔节-齐穗 光合势 Photosynthetic potential at jointing-full heading /(×104m2 d·hm-2) | 拔节-齐穗 群体生长率 Crop growth rate at jointing-full heading /(g·m-2 d-1) | |
---|---|---|---|---|---|---|
拔节期 Jointing stage | 齐穗期 Full heading stage | |||||
N1 | ||||||
R0 | 2.37±0.45 b | 3.21±0.13 d | 2.04±0.08 e | 63.52±0.14 f | 94.76±8.01 c | 20.89±0.38 b |
R1 | 3.83±0.63 a | 4.49±0.45 bc | 3.38±0.34 bc | 75.30±0.06 b | 141.51±10.89 b | 24.64±0.91 a |
R2 | 4.10±0.59 a | 6.13±0.64 a | 4.64±0.48 a | 75.83±0.04 a | 173.89±20.91 a | 25.64±0.44 a |
R3 | 4.40±0.37 a | 4.98±0.87 b | 3.67±0.64 b | 73.60±0.06 c | 159.53±20.63 a | 22.09±0.49 b |
R4 | 4.06±0.34 a | 4.22±0.43 bc | 2.90±0.29 cd | 68.71±0.07 d | 140.74±12.93 b | 22.37±0.18 b |
R5 | 3.90±0.53 a | 4.14±0.29 c | 2.82±0.20 d | 68.09±0.14 e | 136.71±12.77 b | 20.84±0.62 b |
平均 Average | 3.78±0.18 | 4.53±0.28 | 3.24±0.20 | 70.84±0.03 | 141.19±7.63 | 22.75±0.34 |
N2 | ||||||
R0 | 2.37±0.45 c | 3.21±0.13 c | 2.04±0.08 c | 63.52±0.14 d | 94.76±8.01 c | 20.89±0.38 bc |
R1 | 4.25±0.56 ab | 7.69±1.31 a | 4.90±0.84 a | 63.72±0.04 c | 203.03±16.94 a | 23.43±6.68 ab |
R2 | 4.32±0.49 ab | 7.87±0.69 a | 5.02±0.44 a | 63.79±0.03 c | 207.16±18.34 a | 24.26±2.75 a |
R3 | 4.68±0.49 a | 5.11±0.71 b | 3.63±0.51 b | 70.92±0.02 a | 166.46±7.39 b | 21.28±4.12 bc |
R4 | 4.19±0.40 ab | 5.09±0.09 b | 3.61±0.06 b | 70.83±0.09 a | 157.91±5.58 b | 20.08±4.39 c |
R5 | 4.06±0.27 b | 5.13±0.67 b | 3.48±0.45 b | 67.71±0.12 b | 156.25±15.52 b | 19.68±2.35 c |
平均 Average | 3.98±0.38 | 5.68±0.17 | 3.78±0.12 | 66.75±0.06 | 164.26±3.52 | 21.60±3.25 |
F值 F value | ||||||
N | 2.99 | 21.73* | 9.15 | 9683.17** | 57.24* | 0.32 |
R | 21.53** | 24.62** | 28.45** | 7356.86** | 32.51** | 3.56* |
N×R | 0.19 | 5.04** | 2.60 | 8108.31** | 3.70* | 3.37* |
Table 3 Effects of slow-release urea combined with conventional urea on photosynthetic production in mechanically-transplanted rice under different N application rates.
处理 Treatment | 叶面积指数 LAI | 齐穗期高效 叶面积指数 High effective LAI at full heading stage | 齐穗期高效 叶面积率 High effective leaf area rate at full heading stage /% | 拔节-齐穗 光合势 Photosynthetic potential at jointing-full heading /(×104m2 d·hm-2) | 拔节-齐穗 群体生长率 Crop growth rate at jointing-full heading /(g·m-2 d-1) | |
---|---|---|---|---|---|---|
拔节期 Jointing stage | 齐穗期 Full heading stage | |||||
N1 | ||||||
R0 | 2.37±0.45 b | 3.21±0.13 d | 2.04±0.08 e | 63.52±0.14 f | 94.76±8.01 c | 20.89±0.38 b |
R1 | 3.83±0.63 a | 4.49±0.45 bc | 3.38±0.34 bc | 75.30±0.06 b | 141.51±10.89 b | 24.64±0.91 a |
R2 | 4.10±0.59 a | 6.13±0.64 a | 4.64±0.48 a | 75.83±0.04 a | 173.89±20.91 a | 25.64±0.44 a |
R3 | 4.40±0.37 a | 4.98±0.87 b | 3.67±0.64 b | 73.60±0.06 c | 159.53±20.63 a | 22.09±0.49 b |
R4 | 4.06±0.34 a | 4.22±0.43 bc | 2.90±0.29 cd | 68.71±0.07 d | 140.74±12.93 b | 22.37±0.18 b |
R5 | 3.90±0.53 a | 4.14±0.29 c | 2.82±0.20 d | 68.09±0.14 e | 136.71±12.77 b | 20.84±0.62 b |
平均 Average | 3.78±0.18 | 4.53±0.28 | 3.24±0.20 | 70.84±0.03 | 141.19±7.63 | 22.75±0.34 |
N2 | ||||||
R0 | 2.37±0.45 c | 3.21±0.13 c | 2.04±0.08 c | 63.52±0.14 d | 94.76±8.01 c | 20.89±0.38 bc |
R1 | 4.25±0.56 ab | 7.69±1.31 a | 4.90±0.84 a | 63.72±0.04 c | 203.03±16.94 a | 23.43±6.68 ab |
R2 | 4.32±0.49 ab | 7.87±0.69 a | 5.02±0.44 a | 63.79±0.03 c | 207.16±18.34 a | 24.26±2.75 a |
R3 | 4.68±0.49 a | 5.11±0.71 b | 3.63±0.51 b | 70.92±0.02 a | 166.46±7.39 b | 21.28±4.12 bc |
R4 | 4.19±0.40 ab | 5.09±0.09 b | 3.61±0.06 b | 70.83±0.09 a | 157.91±5.58 b | 20.08±4.39 c |
R5 | 4.06±0.27 b | 5.13±0.67 b | 3.48±0.45 b | 67.71±0.12 b | 156.25±15.52 b | 19.68±2.35 c |
平均 Average | 3.98±0.38 | 5.68±0.17 | 3.78±0.12 | 66.75±0.06 | 164.26±3.52 | 21.60±3.25 |
F值 F value | ||||||
N | 2.99 | 21.73* | 9.15 | 9683.17** | 57.24* | 0.32 |
R | 21.53** | 24.62** | 28.45** | 7356.86** | 32.51** | 3.56* |
N×R | 0.19 | 5.04** | 2.60 | 8108.31** | 3.70* | 3.37* |
处理 Treatment | 茎鞘 Stem and sheath | 叶片 Leaf | ||||||
---|---|---|---|---|---|---|---|---|
拔节期 JS | 齐穗期 FHS | 成熟期 MS | 拔节期 JS | 齐穗期 FHS | 成熟期 MS | |||
N1 | ||||||||
R0 | 1.61±0.04 b | 6.59±0.14 d | 4.60±0.21 b | 1.12±0.05 c | 1.85±0.04 b | 1.46±0.08 b | ||
R1 | 2.21±0.09 a | 8.07±0.06 ab | 5.20±0.03 a | 1.89±0.05 a | 2.53±0.04 a | 2.48±0.04 a | ||
R2 | 2.21±0.01 a | 8.49±0.03 a | 5.23±0.03 a | 1.89±0.09 a | 2.66±0.15 a | 2.47±0.03 a | ||
R3 | 2.23±0.02 a | 7.54±0.17 c | 5.09±0.02 a | 1.91±0.01 a | 2.46±0.01 a | 2.33±0.12 a | ||
R4 | 2.28±0.08 a | 7.57±0.11 bc | 5.17±0.03 a | 1.97±0.07 a | 2.48±0.03 a | 2.37±0.16 a | ||
R5 | 1.76±0.03 b | 6.75±0.23 d | 4.88±0.04 ab | 1.51±0.04 b | 2.05±0.05 b | 2.45±0.07 a | ||
平均 Average | 2.05±0.01 | 7.50±0.36 | 5.03±0.03 | 1.71±0.03 | 2.34±0.03 | 2.26±0.03 | ||
N2 | ||||||||
R0 | 1.61±0.04 d | 6.59±0.14 d | 4.60±0.21 b | 1.12±0.05 c | 1.85±0.04 c | 1.46±0.08 c | ||
R1 | 2.55±0.54 ab | 8.05±1.30 ab | 5.37±0.31 a | 2.34±0.58 a | 3.12±1.18 a | 3.28±0.08 a | ||
R2 | 2.35±0.30 bc | 7.75±0.68 ab | 5.43±0.55 a | 2.17±0.35 ab | 2.66±0.64 ab | 3.46±1.09 a | ||
R3 | 2.73±0.29 a | 7.56±0.21 bc | 5.43±0.18 a | 2.17±0.32 ab | 2.66±0.73 ab | 2.99±0.46 ab | ||
R4 | 2.55±0.35 ab | 7.14±0.07 c | 5.75±0.19 a | 2.07±0.36 ab | 2.47±0.84 b | 2.98±0.34 ab | ||
R5 | 2.12±0.18 c | 8.33±0.48 a | 5.21±1.04 a | 1.94±0.15 b | 2.37±1.21 b | 2.65±0.62 b | ||
平均 Average | 2.32±0.08 | 7.57±0.04 | 5.30±0.13 | 1.97±0.11 | 2.52±0.76 | 2.80±0.29 | ||
F值 F value | ||||||||
N | 24.84* | 0.11 | 16.06 | 20.28* | 0.17 | 9.16 | ||
R | 11.59** | 10.32** | 3.74* | 13.44** | 6.86** | 12.31** | ||
N×R | 0.77 | 5.28** | 0.39 | 0.75 | 0.81 | 1.43 | ||
处理 Treatment | 穗 Panicle | 植株 Plant | ||||||
齐穗期 FHS | 成熟期 MS | 拔节期 JS | 齐穗期 FHS | 成熟期 MS | ||||
N1 | ||||||||
R0 | 1.39±0.05 d | 8.91±0.05 c | 2.73±0.08 b | 9.83±0.14 c | 14.96±0.34 b | |||
R1 | 1.89±0.21 a | 9.69±0.06 a | 4.10±0.14 a | 12.48±0.17 ab | 17.37±0.08 a | |||
R2 | 1.82±0.03 ab | 9.74±0.05 a | 4.10±0.08 a | 12.97±0.21 a | 17.44±0.06 a | |||
R3 | 1.65±0.04 c | 9.64±0.04 a | 4.14±0.02 a | 11.65±0.16 b | 17.06±0.06 a | |||
R4 | 1.66±0.04 bc | 9.62±0.03 a | 4.26±0.07 a | 11.71±0.14 b | 17.16±0.19 a | |||
R5 | 1.55±0.04 cd | 9.30±0.02 b | 3.27±0.06 b | 10.36±0.25 c | 16.62±0.10 a | |||
平均 Average | 1.66±0.04 | 9.48±0.02 | 3.77±0.03 | 11.50±0.10 | 16.77±0.04 | |||
N2 | ||||||||
R0 | 1.39±0.05 b | 8.91±0.05 c | 2.73±0.08 c | 9.83±0.14 d | 14.96±0.34 d | |||
R1 | 1.69±0.40 a | 9.77±0.31 b | 4.90±1.11 a | 12.86±2.83 a | 18.41±0.69 bc | |||
R2 | 1.54±0.12 ab | 10.93±0.44 a | 4.53±0.65 ab | 11.96±1.38 abc | 19.82±1.81 a | |||
R3 | 1.50±0.07 ab | 10.72±0.21 a | 4.89±0.60 a | 11.72±0.89 bc | 19.14±0.61 ab | |||
R4 | 1.50±0.06 ab | 10.90±0.09 a | 4.62±0.71 ab | 11.12±0.79 c | 19.63±0.52 a | |||
R5 | 1.62±0.05 a | 9.97±0.60 b | 4.07±0.30 b | 12.32±1.15 ab | 17.83±1.35 c | |||
平均 Average | 1.54±0.08 | 10.20±0.14 | 4.29±0.19 | 11.63±1.13 | 18.30±0.41 | |||
F值 F value | ||||||||
N | 3.89 | 62.49* | 22.67* | 0.04 | 49.32* | |||
R | 5.24** | 30.02** | 12.53** | 12.08** | 19.75** | |||
N×R | 1.27 | 8.15** | 0.63 | 3.10* | 2.49 |
Table 4 Effects of slow-release urea combined with conventional urea on biomass accumulation in mechanically-transplanted rice under different N application rates.t/hm2
处理 Treatment | 茎鞘 Stem and sheath | 叶片 Leaf | ||||||
---|---|---|---|---|---|---|---|---|
拔节期 JS | 齐穗期 FHS | 成熟期 MS | 拔节期 JS | 齐穗期 FHS | 成熟期 MS | |||
N1 | ||||||||
R0 | 1.61±0.04 b | 6.59±0.14 d | 4.60±0.21 b | 1.12±0.05 c | 1.85±0.04 b | 1.46±0.08 b | ||
R1 | 2.21±0.09 a | 8.07±0.06 ab | 5.20±0.03 a | 1.89±0.05 a | 2.53±0.04 a | 2.48±0.04 a | ||
R2 | 2.21±0.01 a | 8.49±0.03 a | 5.23±0.03 a | 1.89±0.09 a | 2.66±0.15 a | 2.47±0.03 a | ||
R3 | 2.23±0.02 a | 7.54±0.17 c | 5.09±0.02 a | 1.91±0.01 a | 2.46±0.01 a | 2.33±0.12 a | ||
R4 | 2.28±0.08 a | 7.57±0.11 bc | 5.17±0.03 a | 1.97±0.07 a | 2.48±0.03 a | 2.37±0.16 a | ||
R5 | 1.76±0.03 b | 6.75±0.23 d | 4.88±0.04 ab | 1.51±0.04 b | 2.05±0.05 b | 2.45±0.07 a | ||
平均 Average | 2.05±0.01 | 7.50±0.36 | 5.03±0.03 | 1.71±0.03 | 2.34±0.03 | 2.26±0.03 | ||
N2 | ||||||||
R0 | 1.61±0.04 d | 6.59±0.14 d | 4.60±0.21 b | 1.12±0.05 c | 1.85±0.04 c | 1.46±0.08 c | ||
R1 | 2.55±0.54 ab | 8.05±1.30 ab | 5.37±0.31 a | 2.34±0.58 a | 3.12±1.18 a | 3.28±0.08 a | ||
R2 | 2.35±0.30 bc | 7.75±0.68 ab | 5.43±0.55 a | 2.17±0.35 ab | 2.66±0.64 ab | 3.46±1.09 a | ||
R3 | 2.73±0.29 a | 7.56±0.21 bc | 5.43±0.18 a | 2.17±0.32 ab | 2.66±0.73 ab | 2.99±0.46 ab | ||
R4 | 2.55±0.35 ab | 7.14±0.07 c | 5.75±0.19 a | 2.07±0.36 ab | 2.47±0.84 b | 2.98±0.34 ab | ||
R5 | 2.12±0.18 c | 8.33±0.48 a | 5.21±1.04 a | 1.94±0.15 b | 2.37±1.21 b | 2.65±0.62 b | ||
平均 Average | 2.32±0.08 | 7.57±0.04 | 5.30±0.13 | 1.97±0.11 | 2.52±0.76 | 2.80±0.29 | ||
F值 F value | ||||||||
N | 24.84* | 0.11 | 16.06 | 20.28* | 0.17 | 9.16 | ||
R | 11.59** | 10.32** | 3.74* | 13.44** | 6.86** | 12.31** | ||
N×R | 0.77 | 5.28** | 0.39 | 0.75 | 0.81 | 1.43 | ||
处理 Treatment | 穗 Panicle | 植株 Plant | ||||||
齐穗期 FHS | 成熟期 MS | 拔节期 JS | 齐穗期 FHS | 成熟期 MS | ||||
N1 | ||||||||
R0 | 1.39±0.05 d | 8.91±0.05 c | 2.73±0.08 b | 9.83±0.14 c | 14.96±0.34 b | |||
R1 | 1.89±0.21 a | 9.69±0.06 a | 4.10±0.14 a | 12.48±0.17 ab | 17.37±0.08 a | |||
R2 | 1.82±0.03 ab | 9.74±0.05 a | 4.10±0.08 a | 12.97±0.21 a | 17.44±0.06 a | |||
R3 | 1.65±0.04 c | 9.64±0.04 a | 4.14±0.02 a | 11.65±0.16 b | 17.06±0.06 a | |||
R4 | 1.66±0.04 bc | 9.62±0.03 a | 4.26±0.07 a | 11.71±0.14 b | 17.16±0.19 a | |||
R5 | 1.55±0.04 cd | 9.30±0.02 b | 3.27±0.06 b | 10.36±0.25 c | 16.62±0.10 a | |||
平均 Average | 1.66±0.04 | 9.48±0.02 | 3.77±0.03 | 11.50±0.10 | 16.77±0.04 | |||
N2 | ||||||||
R0 | 1.39±0.05 b | 8.91±0.05 c | 2.73±0.08 c | 9.83±0.14 d | 14.96±0.34 d | |||
R1 | 1.69±0.40 a | 9.77±0.31 b | 4.90±1.11 a | 12.86±2.83 a | 18.41±0.69 bc | |||
R2 | 1.54±0.12 ab | 10.93±0.44 a | 4.53±0.65 ab | 11.96±1.38 abc | 19.82±1.81 a | |||
R3 | 1.50±0.07 ab | 10.72±0.21 a | 4.89±0.60 a | 11.72±0.89 bc | 19.14±0.61 ab | |||
R4 | 1.50±0.06 ab | 10.90±0.09 a | 4.62±0.71 ab | 11.12±0.79 c | 19.63±0.52 a | |||
R5 | 1.62±0.05 a | 9.97±0.60 b | 4.07±0.30 b | 12.32±1.15 ab | 17.83±1.35 c | |||
平均 Average | 1.54±0.08 | 10.20±0.14 | 4.29±0.19 | 11.63±1.13 | 18.30±0.41 | |||
F值 F value | ||||||||
N | 3.89 | 62.49* | 22.67* | 0.04 | 49.32* | |||
R | 5.24** | 30.02** | 12.53** | 12.08** | 19.75** | |||
N×R | 1.27 | 8.15** | 0.63 | 3.10* | 2.49 |
处理 Treatment | 茎鞘 Stem and sheath | 叶片 Leaf | ||||||
---|---|---|---|---|---|---|---|---|
拔节期 JS | 齐穗期 FHS | 成熟期 MS | 拔节期 JS | 齐穗期 FHS | 成熟期 MS | |||
N1 | ||||||||
R0 | 14.82±0.62 d | 30.69±0.63 d | 18.94±0.85 d | 31.68±1.36 c | 31.88±0.59 c | 9.91±0.57 c | ||
R1 | 27.62±1.14 a | 49.42±0.35 a | 28.10±0.14 ab | 58.29±1.43 a | 51.26±0.72 ab | 23.17±0.38 ab | ||
R2 | 24.78±0.19 ab | 53.76±0.22 a | 29.22±0.16 a | 57.17±2.81 a | 58.80±3.27 a | 24.51±0.30 a | ||
R3 | 22.30±0.21 bc | 40.51±0.88 b | 25.17±0.10 c | 53.99±0.04 ab | 47.30±0.24 b | 20.90±1.06 ab | ||
R4 | 25.05±0.91 ab | 40.68±0.59 b | 26.23±0.14 c | 58.24±1.99 a | 49.25±0.67 ab | 21.43±1.47 ab | ||
R5 | 20.08±0.46 c | 35.19±1.19 c | 21.19±0.18 d | 47.03±1.27 ab | 37.14±0.91 c | 19.43±0.50 b | ||
平均 Average | 22.44±0.14 | 41.71±0.21 | 24.81±0.12 | 51.07±0.70 | 45.94±0.53 | 19.89±0.29 | ||
N2 | ||||||||
R0 | 14.82±0.62 d | 30.69±0.63 d | 18.94±0.85 d | 31.68±1.36 c | 31.88±0.59 c | 9.91±0.57 d | ||
R1 | 37.27±7.84 a | 70.68±11.42 a | 29.19±1.66 ab | 78.59±19.35 a | 71.96±27.13 a | 34.73±0.85 a | ||
R2 | 28.44±3.66 b | 52.99±4.66 b | 29.76±3.02 a | 68.09±11.20 ab | 54.42±13.12 b | 31.94±10.08 b | ||
R3 | 31.51±3.44 b | 49.92±1.42 b | 24.37±0.78 c | 65.21±9.47 b | 57.41±15.70 b | 29.50±4.58 b | ||
R4 | 27.76±3.75 b | 43.96±0.44 c | 26.91±0.91 ab | 58.31±10.08 b | 50.98±17.41 b | 30.77±3.50 b | ||
R5 | 19.26±1.95 c | 44.91±2.57 c | 26.45±5.27 bc | 60.12±4.68 b | 49.75±25.35 b | 18.28±4.27 c | ||
平均 Average | 26.51±1.26 | 48.86±2.83 | 25.94±0.60 | 60.33±3.88 | 52.73±16.31 | 25.85±2.78 | ||
F值F value | ||||||||
N | 28.15* | 18.93* | 13.49 | 23.78* | 0.49 | 11.97 | ||
R | 23.70** | 54.94** | 21.75** | 15.29** | 12.83** | 28.62** | ||
N×R | 3.06* | 8.76** | 1.67 | 1.47 | 2.52 | 3.71* | ||
处理 Treatment | 穗 Panicle | 植株 Plant | ||||||
齐穗期 FHS | 成熟期 MS | 拔节期 JS | 齐穗期 FHS | 成熟期 MS | ||||
N1 | ||||||||
R0 | 21.89±0.79 d | 73.96±0.44 e | 46.50±1.76 c | 84.46±1.24 c | 102.81±1.85 d | |||
R1 | 31.89±3.42 a | 115.27±0.68 b | 85.91±2.55 a | 132.56±3.24 a | 166.55±0.84 a | |||
R2 | 28.78±0.51 ab | 119.80±0.63 a | 81.95±2.68 a | 141.34±3.99 a | 173.53±0.57 a | |||
R3 | 25.88±0.71 bc | 100.27±0.37 c | 76.29±0.17 ab | 113.70±0.95 b | 146.34±0.60 b | |||
R4 | 26.34±0.58 bc | 100.07±0.31 c | 83.29±1.55 a | 116.27±1.30 b | 147.74±1.58 b | |||
R5 | 24.02±0.55 cd | 85.53±0.15 d | 67.11±1.45 b | 96.35±1.65 c | 126.14±0.60 c | |||
平均 Average | 26.47±0.58 | 99.15±0.22 | 73.51±0.73 | 114.11±1.26 | 143.85±0.13 | |||
N2 | ||||||||
R0 | 21.89±0.79 c | 73.96±0.44 e | 46.50±1.76 d | 84.46±1.24 c | 102.81±1.85 e | |||
R1 | 29.89±7.20 a | 134.08±2.29 ab | 115.86±27.19 a | 172.53±45.07 a | 198.01±4.78 a | |||
R2 | 25.60±2.08 b | 136.58±5.48 a | 96.53±14.78 b | 133.01±18.98 b | 198.28±16.39 a | |||
R3 | 25.49±1.08 b | 130.80±2.54 b | 96.72±12.86 b | 132.82±16.81 b | 184.66±5.60 b | |||
R4 | 25.09±0.95 b | 119.88±0.98 c | 86.08±13.82 bc | 120.03±17.07 b | 177.56±4.48 c | |||
R5 | 26.36±0.75 ab | 108.66±6.56 d | 79.39±6.27c | 121.03±24.13 b | 153.39±7.47 d | |||
平均 Average | 25.72±1.34 | 117.33±1.36 | 86.84±5.13 | 127.31±19.95 | 169.12±3.46 | |||
F值F value | ||||||||
N | 0.49 | 430.47** | 25.09* | 1.17 | 139.47** | |||
R | 8.57** | 320.26** | 17.30** | 27.93** | 146.04** | |||
N×R | 0.89 | 20.27** | 1.53 | 4.08* | 6.57** |
Table 5 Effects of slow-release urea combined with conventional urea on N accumulation in mechanically-transplanted rice under different N application rates.kg/hm2
处理 Treatment | 茎鞘 Stem and sheath | 叶片 Leaf | ||||||
---|---|---|---|---|---|---|---|---|
拔节期 JS | 齐穗期 FHS | 成熟期 MS | 拔节期 JS | 齐穗期 FHS | 成熟期 MS | |||
N1 | ||||||||
R0 | 14.82±0.62 d | 30.69±0.63 d | 18.94±0.85 d | 31.68±1.36 c | 31.88±0.59 c | 9.91±0.57 c | ||
R1 | 27.62±1.14 a | 49.42±0.35 a | 28.10±0.14 ab | 58.29±1.43 a | 51.26±0.72 ab | 23.17±0.38 ab | ||
R2 | 24.78±0.19 ab | 53.76±0.22 a | 29.22±0.16 a | 57.17±2.81 a | 58.80±3.27 a | 24.51±0.30 a | ||
R3 | 22.30±0.21 bc | 40.51±0.88 b | 25.17±0.10 c | 53.99±0.04 ab | 47.30±0.24 b | 20.90±1.06 ab | ||
R4 | 25.05±0.91 ab | 40.68±0.59 b | 26.23±0.14 c | 58.24±1.99 a | 49.25±0.67 ab | 21.43±1.47 ab | ||
R5 | 20.08±0.46 c | 35.19±1.19 c | 21.19±0.18 d | 47.03±1.27 ab | 37.14±0.91 c | 19.43±0.50 b | ||
平均 Average | 22.44±0.14 | 41.71±0.21 | 24.81±0.12 | 51.07±0.70 | 45.94±0.53 | 19.89±0.29 | ||
N2 | ||||||||
R0 | 14.82±0.62 d | 30.69±0.63 d | 18.94±0.85 d | 31.68±1.36 c | 31.88±0.59 c | 9.91±0.57 d | ||
R1 | 37.27±7.84 a | 70.68±11.42 a | 29.19±1.66 ab | 78.59±19.35 a | 71.96±27.13 a | 34.73±0.85 a | ||
R2 | 28.44±3.66 b | 52.99±4.66 b | 29.76±3.02 a | 68.09±11.20 ab | 54.42±13.12 b | 31.94±10.08 b | ||
R3 | 31.51±3.44 b | 49.92±1.42 b | 24.37±0.78 c | 65.21±9.47 b | 57.41±15.70 b | 29.50±4.58 b | ||
R4 | 27.76±3.75 b | 43.96±0.44 c | 26.91±0.91 ab | 58.31±10.08 b | 50.98±17.41 b | 30.77±3.50 b | ||
R5 | 19.26±1.95 c | 44.91±2.57 c | 26.45±5.27 bc | 60.12±4.68 b | 49.75±25.35 b | 18.28±4.27 c | ||
平均 Average | 26.51±1.26 | 48.86±2.83 | 25.94±0.60 | 60.33±3.88 | 52.73±16.31 | 25.85±2.78 | ||
F值F value | ||||||||
N | 28.15* | 18.93* | 13.49 | 23.78* | 0.49 | 11.97 | ||
R | 23.70** | 54.94** | 21.75** | 15.29** | 12.83** | 28.62** | ||
N×R | 3.06* | 8.76** | 1.67 | 1.47 | 2.52 | 3.71* | ||
处理 Treatment | 穗 Panicle | 植株 Plant | ||||||
齐穗期 FHS | 成熟期 MS | 拔节期 JS | 齐穗期 FHS | 成熟期 MS | ||||
N1 | ||||||||
R0 | 21.89±0.79 d | 73.96±0.44 e | 46.50±1.76 c | 84.46±1.24 c | 102.81±1.85 d | |||
R1 | 31.89±3.42 a | 115.27±0.68 b | 85.91±2.55 a | 132.56±3.24 a | 166.55±0.84 a | |||
R2 | 28.78±0.51 ab | 119.80±0.63 a | 81.95±2.68 a | 141.34±3.99 a | 173.53±0.57 a | |||
R3 | 25.88±0.71 bc | 100.27±0.37 c | 76.29±0.17 ab | 113.70±0.95 b | 146.34±0.60 b | |||
R4 | 26.34±0.58 bc | 100.07±0.31 c | 83.29±1.55 a | 116.27±1.30 b | 147.74±1.58 b | |||
R5 | 24.02±0.55 cd | 85.53±0.15 d | 67.11±1.45 b | 96.35±1.65 c | 126.14±0.60 c | |||
平均 Average | 26.47±0.58 | 99.15±0.22 | 73.51±0.73 | 114.11±1.26 | 143.85±0.13 | |||
N2 | ||||||||
R0 | 21.89±0.79 c | 73.96±0.44 e | 46.50±1.76 d | 84.46±1.24 c | 102.81±1.85 e | |||
R1 | 29.89±7.20 a | 134.08±2.29 ab | 115.86±27.19 a | 172.53±45.07 a | 198.01±4.78 a | |||
R2 | 25.60±2.08 b | 136.58±5.48 a | 96.53±14.78 b | 133.01±18.98 b | 198.28±16.39 a | |||
R3 | 25.49±1.08 b | 130.80±2.54 b | 96.72±12.86 b | 132.82±16.81 b | 184.66±5.60 b | |||
R4 | 25.09±0.95 b | 119.88±0.98 c | 86.08±13.82 bc | 120.03±17.07 b | 177.56±4.48 c | |||
R5 | 26.36±0.75 ab | 108.66±6.56 d | 79.39±6.27c | 121.03±24.13 b | 153.39±7.47 d | |||
平均 Average | 25.72±1.34 | 117.33±1.36 | 86.84±5.13 | 127.31±19.95 | 169.12±3.46 | |||
F值F value | ||||||||
N | 0.49 | 430.47** | 25.09* | 1.17 | 139.47** | |||
R | 8.57** | 320.26** | 17.30** | 27.93** | 146.04** | |||
N×R | 0.89 | 20.27** | 1.53 | 4.08* | 6.57** |
处理 Treatment | 氮素转运量 N translation amount /(kg·hm-2) | 氮素转运率 N translation efficiency/% | 氮素贡献率 N contribution rate/% | 穗部氮素增加量 N increment in panicle /(kg·hm-2) | ||||
---|---|---|---|---|---|---|---|---|
茎鞘 Stem and sheath | 叶片 Leaf | 茎鞘 Stem and sheath | 叶片 Leaf | 茎鞘 Stem and sheath | 叶片 Leaf | |||
N1 | ||||||||
R0 | 11.75±0.98 b | 21.97±0.61 b | 38.27±2.85 bc | 68.93±1.61 a | 15.89±1.40 bc | 29.71±0.90 a | 52.07±0.36 e | |
R1 | 21.31±0.26 a | 28.09±0.67 ab | 43.13±0.26 ab | 54.79±0.77 bc | 18.49±0.17 ab | 24.36±0.44 ab | 83.39±3.29 b | |
R2 | 24.54±0.07 a | 34.29±3.05 a | 45.64±0.07 a | 58.25±2.02 ab | 20.48±0.10 a | 28.63±2.56 a | 91.02±0.85 a | |
R3 | 15.34±0.95 b | 26.40±0.97 ab | 37.85±1.52 bc | 55.82±2.14 bc | 15.30±1.01 bc | 26.33±0.88 ab | 74.39±0.41 c | |
R4 | 14.45±0.45 b | 27.82±1.78 ab | 35.51±0.60 c | 56.47±3.19 bc | 14.44±0.46 c | 27.80±1.80 a | 73.73±0.80 c | |
R5 | 14.00±1.06 b | 17.72±0.82 c | 39.74±1.65 abc | 47.69±1.38 c | 16.36±1.22 bc | 20.72±0.93 b | 61.50±0.67 d | |
平均 Average | 16.90±0.09 | 26.05±0.81 | 40.03±0.07 | 56.99±0.96 | 16.83±0.05 | 26.26±0.65 | 72.68±0.38 | |
N2 | ||||||||
R0 | 11.75±0.98 d | 21.97±0.61 bc | 38.27±2.85 b | 68.93±1.61 a | 15.89±1.40 bc | 29.71±0.90 a | 52.07±0.36 e | |
R1 | 41.49±9.87 a | 37.23±26.43 a | 58.24±4.24 a | 47.74±16.13 bc | 30.86±6.80 a | 27.58±19.13 ab | 104.19±5.09 b | |
R2 | 23.23±2.80 b | 22.48±19.47 bc | 43.83±3.24 b | 38.19±27.55 de | 17.08±2.76 bc | 16.86±15.03 c | 110.98±6.69 a | |
R3 | 25.55±2.13 b | 27.91±19.06 abc | 51.13±2.85 a | 45.45±18.55 cd | 19.53±1.56 b | 21.23±14.18 bc | 105.30±1.93 a | |
R4 | 17.05±0.70 c | 20.21±20.76 c | 38.78±1.73 b | 33.85±26.09 e | 14.22±0.50 c | 16.85±17.25 c | 94.79±1.92 c | |
R5 | 18.47±7.45 c | 31.47±26.51 ab | 40.62±15.04 b | 56.51±20.24 ab | 16.89±6.53 bc | 28.09±22.03 c | 82.30±7.30 d | |
平均 Average | 22.92±3.31 | 26.88±18.67 | 45.15±3.47 | 48.44±17.93 | 19.08±2.38 | 23.39±14.68 | 91.61±0.64 | |
F值 F value | ||||||||
N | 9.79 | 0.00 | 6.44 | 1.19 | 2.21 | 0.11 | 1096.16** | |
R | 28.31** | 1.75 | 7.14** | 8.56** | 10.01** | 1.51 | 133.08** | |
N×R | 9.28** | 2.84 | 3.66* | 1.94 | 6.31** | 3.05* | 10.94** |
Table 6 Effects of slow-release urea combined with conventional urea on N translocation in mechanically-transplanted rice under different N application rates.
处理 Treatment | 氮素转运量 N translation amount /(kg·hm-2) | 氮素转运率 N translation efficiency/% | 氮素贡献率 N contribution rate/% | 穗部氮素增加量 N increment in panicle /(kg·hm-2) | ||||
---|---|---|---|---|---|---|---|---|
茎鞘 Stem and sheath | 叶片 Leaf | 茎鞘 Stem and sheath | 叶片 Leaf | 茎鞘 Stem and sheath | 叶片 Leaf | |||
N1 | ||||||||
R0 | 11.75±0.98 b | 21.97±0.61 b | 38.27±2.85 bc | 68.93±1.61 a | 15.89±1.40 bc | 29.71±0.90 a | 52.07±0.36 e | |
R1 | 21.31±0.26 a | 28.09±0.67 ab | 43.13±0.26 ab | 54.79±0.77 bc | 18.49±0.17 ab | 24.36±0.44 ab | 83.39±3.29 b | |
R2 | 24.54±0.07 a | 34.29±3.05 a | 45.64±0.07 a | 58.25±2.02 ab | 20.48±0.10 a | 28.63±2.56 a | 91.02±0.85 a | |
R3 | 15.34±0.95 b | 26.40±0.97 ab | 37.85±1.52 bc | 55.82±2.14 bc | 15.30±1.01 bc | 26.33±0.88 ab | 74.39±0.41 c | |
R4 | 14.45±0.45 b | 27.82±1.78 ab | 35.51±0.60 c | 56.47±3.19 bc | 14.44±0.46 c | 27.80±1.80 a | 73.73±0.80 c | |
R5 | 14.00±1.06 b | 17.72±0.82 c | 39.74±1.65 abc | 47.69±1.38 c | 16.36±1.22 bc | 20.72±0.93 b | 61.50±0.67 d | |
平均 Average | 16.90±0.09 | 26.05±0.81 | 40.03±0.07 | 56.99±0.96 | 16.83±0.05 | 26.26±0.65 | 72.68±0.38 | |
N2 | ||||||||
R0 | 11.75±0.98 d | 21.97±0.61 bc | 38.27±2.85 b | 68.93±1.61 a | 15.89±1.40 bc | 29.71±0.90 a | 52.07±0.36 e | |
R1 | 41.49±9.87 a | 37.23±26.43 a | 58.24±4.24 a | 47.74±16.13 bc | 30.86±6.80 a | 27.58±19.13 ab | 104.19±5.09 b | |
R2 | 23.23±2.80 b | 22.48±19.47 bc | 43.83±3.24 b | 38.19±27.55 de | 17.08±2.76 bc | 16.86±15.03 c | 110.98±6.69 a | |
R3 | 25.55±2.13 b | 27.91±19.06 abc | 51.13±2.85 a | 45.45±18.55 cd | 19.53±1.56 b | 21.23±14.18 bc | 105.30±1.93 a | |
R4 | 17.05±0.70 c | 20.21±20.76 c | 38.78±1.73 b | 33.85±26.09 e | 14.22±0.50 c | 16.85±17.25 c | 94.79±1.92 c | |
R5 | 18.47±7.45 c | 31.47±26.51 ab | 40.62±15.04 b | 56.51±20.24 ab | 16.89±6.53 bc | 28.09±22.03 c | 82.30±7.30 d | |
平均 Average | 22.92±3.31 | 26.88±18.67 | 45.15±3.47 | 48.44±17.93 | 19.08±2.38 | 23.39±14.68 | 91.61±0.64 | |
F值 F value | ||||||||
N | 9.79 | 0.00 | 6.44 | 1.19 | 2.21 | 0.11 | 1096.16** | |
R | 28.31** | 1.75 | 7.14** | 8.56** | 10.01** | 1.51 | 133.08** | |
N×R | 9.28** | 2.84 | 3.66* | 1.94 | 6.31** | 3.05* | 10.94** |
处理 Treatment | 氮素收获指数 NHI/% | 氮素干物质 生产效率NBPE /( kg·kg-1) | 氮素稻谷 生产效率NGPE /( kg·kg-1) | 氮肥偏生产力 NPP /( kg·kg-1) | 氮肥农学利用率 NAE /( kg·kg-1) | 氮肥表观利用率 NAUE /% |
---|---|---|---|---|---|---|
N1 | ||||||
R0 | 71.95±0.87 a | 145.60±0.66 a | 92.33±1.23 a | - | - | - |
R1 | 69.21±0.25 ab | 104.27±0.14 d | 70.02±0.65 d | 77.74±0.74 a | 14.47±1.51 a | 42.49±1.69 a |
R2 | 69.04±0.23 ab | 100.52±0.08 d | 68.05±0.57 d | 78.72±0.44 a | 15.45±1.55 a | 47.15±0.88 a |
R3 | 68.52±0.52 b | 116.62±0.04 c | 78.07±2.60 c | 76.17±2.37 b | 12.89±3.37 b | 29.02±1.17 b |
R4 | 67.74±0.75 b | 116.13±0.06 c | 77.23±1.91 c | 76.05±1.29 b | 12.78±0.26 b | 29.95±2.29 b |
R5 | 67.80±0.39 b | 125.44±1.55 b | 84.88±1.30 b | 71.38±1.20 c | 8.11±0.71 c | 15.56±1.18 c |
平均 Average | 69.05±0.17 | 118.10±0.36 | 78.43±0.31 | 76.01±0.33 | 12.74±1.25 | 32.83±1.41 |
N2 | ||||||
R0 | 71.95±0.87 a | 145.60±0.66 a | 92.33±1.23 a | - | - | - |
R1 | 67.72±0.50 b | 92.97±1.37 c | 60.20±1.57 e | 66.20±0.56 ab | 13.47±1.44 ab | 52.89±2.98 a |
R2 | 69.07±3.76 ab | 104.45±8.84 b | 60.87±4.86 de | 66.75±0.14 a | 14.02±0.92 a | 53.04±8.08 a |
R3 | 70.86±2.07 a | 103.61±0.70 b | 63.42±1.99 cd | 65.03±0.13 b | 12.29±0.99 b | 45.48±2.11 b |
R4 | 67.54±1.64 b | 110.59±0.44 b | 65.90±1.59 c | 64.98±0.18 b | 12.25±0.76 b | 41.53±1.57 b |
R5 | 70.94±5.10 a | 107.03±16.90 b | 71.84±4.01 b | 61.11±0.44 c | 8.38±0.65c | 28.10±5.07 c |
平均 Average | 69.68±1.36 | 110.71±1.15 | 69.09±0.93 | 64.81±0.05 | 12.08±0.93 | 44.21±1.09 |
F值 F value | ||||||
N | 0.43 | 63.85* | 377.60** | 4528.56** | 8.80 | 53.69* |
R | 3.09* | 49.29** | 103.00** | 32.23** | 32.12** | 51.05** |
N×R | 1.12 | 3.00* | 6.47** | 0.51 | 0.51 | 1.26 |
Table 7 Effects of slow-release urea combined with conventional urea on N use efficiency in mechanically-transplanted rice under different N application rates.
处理 Treatment | 氮素收获指数 NHI/% | 氮素干物质 生产效率NBPE /( kg·kg-1) | 氮素稻谷 生产效率NGPE /( kg·kg-1) | 氮肥偏生产力 NPP /( kg·kg-1) | 氮肥农学利用率 NAE /( kg·kg-1) | 氮肥表观利用率 NAUE /% |
---|---|---|---|---|---|---|
N1 | ||||||
R0 | 71.95±0.87 a | 145.60±0.66 a | 92.33±1.23 a | - | - | - |
R1 | 69.21±0.25 ab | 104.27±0.14 d | 70.02±0.65 d | 77.74±0.74 a | 14.47±1.51 a | 42.49±1.69 a |
R2 | 69.04±0.23 ab | 100.52±0.08 d | 68.05±0.57 d | 78.72±0.44 a | 15.45±1.55 a | 47.15±0.88 a |
R3 | 68.52±0.52 b | 116.62±0.04 c | 78.07±2.60 c | 76.17±2.37 b | 12.89±3.37 b | 29.02±1.17 b |
R4 | 67.74±0.75 b | 116.13±0.06 c | 77.23±1.91 c | 76.05±1.29 b | 12.78±0.26 b | 29.95±2.29 b |
R5 | 67.80±0.39 b | 125.44±1.55 b | 84.88±1.30 b | 71.38±1.20 c | 8.11±0.71 c | 15.56±1.18 c |
平均 Average | 69.05±0.17 | 118.10±0.36 | 78.43±0.31 | 76.01±0.33 | 12.74±1.25 | 32.83±1.41 |
N2 | ||||||
R0 | 71.95±0.87 a | 145.60±0.66 a | 92.33±1.23 a | - | - | - |
R1 | 67.72±0.50 b | 92.97±1.37 c | 60.20±1.57 e | 66.20±0.56 ab | 13.47±1.44 ab | 52.89±2.98 a |
R2 | 69.07±3.76 ab | 104.45±8.84 b | 60.87±4.86 de | 66.75±0.14 a | 14.02±0.92 a | 53.04±8.08 a |
R3 | 70.86±2.07 a | 103.61±0.70 b | 63.42±1.99 cd | 65.03±0.13 b | 12.29±0.99 b | 45.48±2.11 b |
R4 | 67.54±1.64 b | 110.59±0.44 b | 65.90±1.59 c | 64.98±0.18 b | 12.25±0.76 b | 41.53±1.57 b |
R5 | 70.94±5.10 a | 107.03±16.90 b | 71.84±4.01 b | 61.11±0.44 c | 8.38±0.65c | 28.10±5.07 c |
平均 Average | 69.68±1.36 | 110.71±1.15 | 69.09±0.93 | 64.81±0.05 | 12.08±0.93 | 44.21±1.09 |
F值 F value | ||||||
N | 0.43 | 63.85* | 377.60** | 4528.56** | 8.80 | 53.69* |
R | 3.09* | 49.29** | 103.00** | 32.23** | 32.12** | 51.05** |
N×R | 1.12 | 3.00* | 6.47** | 0.51 | 0.51 | 1.26 |
指标 Index | 总干物质量 Dry matter amount | 总氮素 积累量 N accumulation | 氮肥农学 利用率 NAE | 氮肥表观 利用率 NAUE | 每穗实粒数 Spikelet number panicle | 产量 Grain yield |
---|---|---|---|---|---|---|
氮素积累量 N accumulation amount | ||||||
拔节期 JS | 0.70** | 0.85** | 0.39* | 0.64** | 0.70** | 0.83** |
齐穗期 FHS | 0.56** | 0.77** | 0.40* | 0.65** | 0.60** | 0.73** |
成熟期 MS | 0.90** | 1.00** | 0.50** | 0.97** | 0.78** | 0.91** |
结实期氮素转运量 N translocation amount | ||||||
茎鞘 Stem-sheath | 0.42* | 0.69** | 0.38* | 0.61** | 0.54** | 0.59** |
叶片 Leaf | 0.02 | 0.17 | 0.17 | 0.14 | 0.18 | 0.20 |
结实期净光合速率 Pn | ||||||
齐穗期 FHS | 0.77** | 0.89** | 0.48** | 0.75** | 0.72** | 0.89** |
齐穗后15 d 15 d after FHS | 0.42** | 0.62** | 0.72** | 0.38* | 0.49** | 0.78** |
齐穗后30 d 30 d after FHS | 0.58** | 0.72** | 0.56** | 0.52** | 0.50** | 0.78** |
拔节-齐穗光合势 Photosynthetic potential | 0.71** | 0.86** | 0.36* | 0.65** | 0.78** | 0.82** |
拔节-齐穗群体生长率 Crop growth rate | 0.01 | 0.15 | 0.10 | 0.10 | 0.16 | 0.19 |
Table 8 Correlation coefficients between N accumulation translocation, photosynthetic production and N use efficiency, dry matter, and yield.
指标 Index | 总干物质量 Dry matter amount | 总氮素 积累量 N accumulation | 氮肥农学 利用率 NAE | 氮肥表观 利用率 NAUE | 每穗实粒数 Spikelet number panicle | 产量 Grain yield |
---|---|---|---|---|---|---|
氮素积累量 N accumulation amount | ||||||
拔节期 JS | 0.70** | 0.85** | 0.39* | 0.64** | 0.70** | 0.83** |
齐穗期 FHS | 0.56** | 0.77** | 0.40* | 0.65** | 0.60** | 0.73** |
成熟期 MS | 0.90** | 1.00** | 0.50** | 0.97** | 0.78** | 0.91** |
结实期氮素转运量 N translocation amount | ||||||
茎鞘 Stem-sheath | 0.42* | 0.69** | 0.38* | 0.61** | 0.54** | 0.59** |
叶片 Leaf | 0.02 | 0.17 | 0.17 | 0.14 | 0.18 | 0.20 |
结实期净光合速率 Pn | ||||||
齐穗期 FHS | 0.77** | 0.89** | 0.48** | 0.75** | 0.72** | 0.89** |
齐穗后15 d 15 d after FHS | 0.42** | 0.62** | 0.72** | 0.38* | 0.49** | 0.78** |
齐穗后30 d 30 d after FHS | 0.58** | 0.72** | 0.56** | 0.52** | 0.50** | 0.78** |
拔节-齐穗光合势 Photosynthetic potential | 0.71** | 0.86** | 0.36* | 0.65** | 0.78** | 0.82** |
拔节-齐穗群体生长率 Crop growth rate | 0.01 | 0.15 | 0.10 | 0.10 | 0.16 | 0.19 |
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