间作小麦秸秆还田对地膜覆盖玉米灌浆期冠层温度及光合生理特性的影响
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殷文,柴强,于爱忠,赵财,樊志龙,胡发龙,范虹,郭瑶
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Effects of Intercropped Wheat Straw Retention on Canopy Temperature and Photosynthetic Physiological Characteristics of Intercropped Maize Mulched with Plastic During Grain Filling Stage
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YIN Wen,CHAI Qiang,YU AiZhong,ZHAO Cai,FAN ZhiLong,HU FaLong,FAN Hong,GUO Yao
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表5 不同种植模式不同处理玉米灌浆期的光合特性差异
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Table 5 The photosynthetic characteristics of maize at grain-filling stage with different treatments and cropping patterns
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灌浆时期
Grain filling stage | 处理
Treatment | 光合速率
Pn (μmol·m-2·s-1) | | 蒸腾速率
Tr (mmol·m-2·s-1) | | 叶片水分利用效率
WUEL (μmol·mmol-1) | | 2014 | 2015 | 2016 | 2014 | 2015 | 2016 | 2014 | 2015 | 2016 | 灌浆前期
Early-filling stage | 间作 Intercropping | | NTSI2 | 31.42a | 31.58a | 34.00a | | 4.01a | 4.04a | 4.19ab | | 7.83a | 7.83a | 8.11a | | NTSSI2 | 29.95ab | 30.26ab | 32.68ab | | 3.90ab | 3.90a | 4.09a | | 7.67a | 7.75a | 7.98a | | CTSI | 30.22ab | 30.64ab | 33.27ab | | 3.98a | 3.98a | 4.28a | | 7.59a | 7.69ab | 7.78a | | CTI | 29.01b | 29.76abc | 32.52abc | | 3.84ab | 3.96a | 4.17ab | | 7.55a | 7.51abc | 7.81a | | 单作 Sole cropping | | NTM2 | 27.75bc | 28.92bc | 30.81c | | 3.89ab | 3.95a | 4.18ab | | 7.14b | 7.31bc | 7.36b | | CTM | 26.82c | 28.12c | 31.50bc | | 3.78b | 3.91a | 4.35a | | 7.09b | 7.20c | 7.25b | | 显著性 Significance | | | | | | | | | | | | | 年份Year (Y) | NS | | NS | | 0.029 | | 处理Treatment (T) | 0.020 | | 0.043 | | 0.002 | | 年份×处理 Y×T | 0.031 | | NS | | 0.023 | 灌浆中期
Middle-filling stage | 间作 Intercropping | | NTSI2 | 28.98a | 29.99a | 29.55a | | 3.74a | 3.84a | 3.71a | | 7.76a | 7.82a | 7.97a | | NTSSI2 | 27.99a | 28.85ab | 28.88a | | 3.67a | 3.75a | 3.75a | | 7.62ab | 7.69ab | 7.71ab | | CTSI | 26.32b | 27.38bc | 27.70ab | | 3.58ab | 3.71a | 3.73a | | 7.35b | 7.39bc | 7.43b | | CTI | 24.84c | 26.89c | 25.75bc | | 3.40b | 3.73a | 3.52b | | 7.30bc | 7.20c | 7.31b | | 单作 Sole cropping | | NTM2 | 25.27bc | 24.08d | 26.59b | | 3.59ab | 3.35b | 3.75a | | 7.05cd | 7.20c | 7.08bc | | CTM | 22.93d | 22.18e | 24.73c | | 3.35b | 3.25b | 3.66ab | | 6.84d | 6.82d | 6.75c | | 显著性 Significance | | | | | | | | | | | | | 年份Year (Y) | 0.000 | | | NS | | | | NS | | | 处理Treatment (T) | 0.000 | | | 0.030 | | | | 0.000 | | | 年份×处理 Y×T | 0.000 | | | NS | | | | 0.037 | | 灌浆后期
Late-filling stage | 间作 Intercropping | | NTSI2 | 24.27a | 24.43a | 25.43a | | 3.33a | 3.25a | 3.37a | | 7.30a | 7.53a | 7.54a | | NTSSI2 | 23.28a | 23.08a | 24.33a | | 3.25a | 3.15a | 3.34a | | 7.15ab | 7.32a | 7.29a | | CTSI | 20.60b | 21.27b | 21.68bc | | 2.95b | 3.16a | 3.25b | | 6.99b | 6.72b | 6.68b | | CTI | 19.34c | 19.84bc | 20.98c | | 2.77c | 2.93b | 3.19bc | | 6.97b | 6.76b | 6.57b | | 单作 Sole cropping | | NTM2 | 19.12 c | 21.26b | 22.22b | | 2.80c | 3.15a | 3.28b | | 6.82bc | 6.74b | 6.78b | | CTM | 16.92 d | 18.83c | 19.11d | | 2.57d | 3.02ab | 3.11c | | 6.57c | 6.23c | 6.15c | | 显著性 Significance | | | | | | | | | | | | | 年份Year (Y) | 0.012 | | NS | | | 0.032 | | | 处理Treatment (T) | 0.000 | | 0.024 | | | 0.002 | | | 年份×处理 Y×T | 0.031 | | NS | | | 0.020 | |
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