| 不同水分处理对春玉米生态指标、耗水量及产量的影响 |
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| 引用本文： | 肖俊夫,刘战东,南纪琴,于秀琴.不同水分处理对春玉米生态指标、耗水量及产量的影响[J].玉米科学,2010,18(6):94-97. |
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| 作者姓名： | 肖俊夫 刘战东 南纪琴 于秀琴 |
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| 作者单位： | 1. 中国农业科学院农田灌溉研究所,河南新乡,453003
2. 辽宁省建平县灌溉试验站,辽宁建平,122400 |
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| 基金项目： | 现代农业产业技术体系建设专项资金、国家科技基础性工作专项“中国农业气候资源数字化图集编制”(2007 FY120100) |
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| 摘 要： | 以春玉米为试验材料,通过防雨棚测坑种植,人工严格控制设置不同的土壤水分处理,研究不同水分处理对玉米植株生态指标、耗水量和产量的影响。结果表明,水分胁迫抑制了玉米的生长发育,高水分处理均具有较高的叶面积、株高及茎粗;轻度胁迫对各项指标影响不大,随着胁迫的进一步加深,各项生态指标均呈下降趋势;低水分处理产量明显降低,耗水量较小,后期植株衰老加速,成熟期提前;高水分处理存在奢侈性蒸腾蒸发,耗水量最高,产量低于轻度胁迫处理。通过产量与耗水量对比分析,确定当地春玉米适宜土壤水分指标控制下限。
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| 关 键 词： | 春玉米 土壤水分 生态指标 产量 耗水量 |
| 收稿时间： | 2009/12/24 0:00:00 |
Effects of Different Moisture Treatments on Ecological Index, Water Consumption and Yield of Spring Maize |
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| XIAO Jun-fu,LIU Zhan-dong,NAN Ji-qin,YU Xiu-qin.Effects of Different Moisture Treatments on Ecological Index, Water Consumption and Yield of Spring Maize[J].Journal of Maize Sciences,2010,18(6):94-97. |
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| Authors: | XIAO Jun-fu LIU Zhan-dong NAN Ji-qin YU Xiu-qin |
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| Abstract: | Under the condition of mobile rain-proof shelter, by cultivating in test-pit, controlling different soil water content strictly, a systematic study was conducted to the response of different soil water treatment on ecological index, water consumption and yield of spring maize during the growing period. The results indicated that water stress inhibited the growth and development of spring maize. The higher soil moisture treatment had a high leaf area, height and stem diameter; there was no obvious influence on light stress, as the stress aggravated, all of the ecological index showed a downward trend. The lower soil moisture treatment resulted in the yield and water consumption amount maize significantly decreased, and it could let plant aging accelerate and growing period advance. T-4 had luxury evapotranspiration, its yield was lower than T-3. Finally, compared with yield and water consumption, the suitable control limit index of soil moisture content was put forward. The results would provide basis for determining reasonable irrigation, saving water and increasing yield of spring maize. |
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