陇中半干旱区不同覆盖种植方式对土壤水热效应和玉米产量的影响
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邓浩亮,张恒嘉,肖让,张永玲,田建良,李福强,王玉才,周宏,李煊
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Effects of Different Covering Planting Patterns on Soil Moisture, Temperature Characteristics and Maize Yield in Semi-Arid Region of the Loess Plateau
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HaoLiang DENG,HengJia ZHANG,Rang XIAO,YongLing ZHANG,JianLiang TIAN,FuQiang LI,YuCai WANG,Hong ZHOU,Xuan LI
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表5 不同覆盖种植方式对春玉米阶段性耗水量和水分利用效率的影响
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Table 5 Effects of different covering planting patterns on seasonal water consumption and seasonal water use efficiency of spring maize
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年份
Year | 处理
Treatment | 生育时期Growth stage | 总耗水量
Total water
consumption
(mm) | 籽粒水分
利用效率
Grain water use efficiency
(kg·hm-2·mm-1) | 前期（出苗-拔节）
Early stage (Budding-Jointing) | 中期（拔节-吐丝）
Middle stage (Jointing-Silking) | 后期（吐丝-成熟）
Later stage (Silking-Maturity) | 耗水量
WC (mm) | 耗水模系数
WCC (%) | 水分利用效率
WUE (kg·hm-2·mm-1) | 耗水量
WC
(mm) | 耗水模
系数
WCC
(%) | 水分利用效率
WUE (kg·hm-2·mm-1) | 耗水量
WC (mm) | 耗水模系数
WCC (%) | 水分利用效率
WUE (kg·hm-2·mm-1) | | 2015 | WM | 58.00a | 17.94 | 44.55c | 144.12a | 44.59 | 91.65c | 121.11a | 37.47 | 57.83de | 323.23a | 17.44c | | HM | 37.27d | 13.32 | 65.29b | 130.80bc | 46.74 | 105.52b | 111.79b | 39.94 | 55.28e | 279.86bc | 18.18c | | MRM | 53.47b | 18.33 | 45.54c | 138.53b | 47.49 | 116.50a | 99.69c | 34.18 | 71.45c | 291.69b | 22.59b | | WRF | 30.14e | 10.49 | 70.77a | 145.69a | 50.69 | 105.72b | 111.61b | 38.83 | 61.17d | 287.44b | 24.50a | | SM | 49.13c | 18.67 | 10.31e | 122.70c | 46.62 | 55.37e | 91.38d | 34.72 | 100.75a | 263.21cd | 10.85d | | CK | 34.30d | 13.69 | 20.70d | 121.85c | 48.64 | 72.35d | 94.38cd | 37.67 | 88.48b | 250.53d | 10.40d | 平均
Mean | 43.72 | 15.41 | 42.86 | 133.95 | 47.46 | 91.18 | 104.99 | 37.13 | 72.49 | 282.66 | 17.33 | | 2016 | WM | 33.16e | 10.93 | 70.84b | 160.00a | 52.76 | 69.75d | 110.09ab | 36.30 | 78.56d | 303.25a | 20.40c | | HM | 24.74f | 9.34 | 78.49a | 136.35c | 51.49 | 74.50cd | 103.71b | 39.17 | 102.05c | 264.79bc | 20.56c | | MRM | 61.25a | 20.28 | 37.74d | 144.37b | 47.80 | 80.57bc | 96.41c | 31.92 | 107.57c | 302.03a | 23.13b | | WRF | 50.18b | 16.77 | 46.11c | 135.55c | 45.30 | 93.52a | 113.49a | 37.93 | 77.65d | 299.22a | 24.74a | | SM | 45.77c | 17.98 | 13.20f | 118.72d | 46.64 | 40.12f | 90.04c | 35.38 | 151.92a | 254.53c | 13.22d | | CK | 39.66d | 14.42 | 20.29e | 133.25c | 48.46 | 51.17e | 102.05bc | 37.11 | 116.93b | 274.96b | 9.88e | 平均
Mean | 42.46 | 14.96 | 44.45 | 138.04 | 48.74 | 68.27 | 102.63 | 36.30 | 105.78 | 283.13 | 18.66 | 2年
平均
Average numerical values of 2 years | WM | 45.58b | 14.44 | 57.70b | 152.06a | 48.67 | 80.70c | 115.60a | 36.89 | 68.19e | 313.24a | 18.92c | | HM | 31.01e | 11.33 | 71.89a | 133.58bc | 49.11 | 90.01b | 107.75ab | 39.56 | 78.67d | 272.33b | 19.37c | | MRM | 57.36a | 19.31 | 41.64c | 141.45ab | 47.65 | 98.54ab | 98.05b | 33.05 | 89.51c | 296.86a | 22.86b | | WRF | 40.16c | 13.63 | 58.44b | 140.62b | 47.99 | 99.62a | 112.55a | 38.38 | 69.41e | 293.33a | 24.62a | | SM | 47.45b | 18.32 | 11.76e | 120.71d | 46.63 | 47.75e | 90.71c | 35.05 | 126.33a | 258.87b | 12.04d | | CK | 36.98d | 14.06 | 20.50d | 127.55cd | 48.55 | 61.76d | 98.22b | 37.39 | 102.71b | 262.75b | 10.14e | 平均
Mean | 43.09 | 15.18 | 43.65 | 135.99 | 48.10 | 79.73 | 103.81 | 36.72 | 89.14 | 282.90 | 17.99 |
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