| 引用本文: | 袁宏伟,袁先江,汤广民,等.花荚期涝渍胁迫对大豆生长和产量的影响[J].灌溉排水学报,2017,36(6):. |
| YUAN Hongwei,YUAN Xianjiang,TANG Guangmin,et al.花荚期涝渍胁迫对大豆生长和产量的影响[J].灌溉排水学报,2017,36(6):. |
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| 摘要: |
| 为探索汛期易涝易渍情况下大豆种植的排水管理措施，通过测坑试验研究了大豆花荚期涝渍对其生理特征和产量的影响。结果表明，涝渍胁迫引起大豆单株实荚数、百粒质量的减少和减产。大豆相对产量和涝渍综合累积水深[SFEW30]显著负相关（R=0.948 9），随着涝渍时间的延长，减产幅度增大。在供试土壤为砂姜黑土情况下，为保证大豆正常生长发育并高产，花荚期涝渍时必须将农田地下水位在5 d内降至地面以下30 cm。 |
| 关键词: 涝渍综合累积水深； 大豆； 花荚期； 产量 |
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| Impact of Waterlogging at the Flower-pod Stage on Growth and Yield of Soybean |
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YUAN Hongwei, YUAN Xianjiang, TANG Guangmin, YANG Jiwei
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Key Laboratory of Water Conservancy and Water Resources of Anhui Province, Bengbu 233000, China;Water Resources Research Institute of Anhui Province and Huaihe River Commission, Ministry of Water Resources, Bengbu 233000, China
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| Abstract: |
| We studied the impact of waterlogging at flower-pod stage on physiological traits and yield of soybean grown in a lysimeter in attempts to improve drainage management of soybean fields. The results showed that the number of pods, weights of 100-pellets and yield of the soybean decreased due to waterlogging, and that the relative yield was negatively related to accumulated depth of waterlogging (R=0.948 9). Reduction in soybean yield increased with prolonged duration of waterlogging. To sustain growth and yield of soybean, therefore, the groundwater table should be dropped to below 30 cm of depth in 5 days after waterlogging occurred. |
| Key words: accumulated waterlogging depth; soybean; flower-pods |
