耕作对渭北旱塬小麦-玉米轮作田土壤水分和产量的影响
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郭星宇,王浩,于琦,王瑞,王小利,李军
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Effects of Tillage on Soil Moisture and Yield of Wheat-Maize Rotation Field in Weibei Upland Plateau
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GUO XingYu,WANG Hao,YU Qi,WANG Rui,WANG XiaoLi,LI Jun
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表2 不同降水年型各耕作处理冬小麦耗水量、产量与水分利用效率
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Table 2 ET, grain yield and WUE of winter wheat under different tillage treatments and rainfall types
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| 影响因子 Factor | 耗水量 ET (mm) | 产量 Yield (kg∙hm-2) | 水分利用效率 WUE (kg∙hm-2∙mm-1) | 降水年型
Rainfall type | H | 324.9a | 4985a | 15.4a | | D | 267.9b | 3984b | 14.9a | | F值检验 F value test | 28130.932** | 311.566** | 4605.515** | 耕作方式
Tillage practice | NT | 279.3c | 4522a | 16.2a | | ST | 291.0b | 4468b | 15.4a | | CT | 319.0a | 4465b | 14.0b | | F值检验 F value test | 164136.138** | 220992.587** | 31408.451** | 丰水年型
Humid year | NT | 305.0b | 5033a | 16.5a | | ST | 319.1b | 4978a | 15.6a | | CT | 350.6a | 4944a | 14.1b | 欠水年型
Dry year | NT | 253.5b | 4011a | 15.8a | | ST | 262.9b | 3957a | 15.1ab | | CT | 287.4a | 3986a | 13.9b | | F值检验 F value test | 576.798** | 98.552** | 336.738** |
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