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| 行距对晚播冬小麦群体物质积累和水分利用的影响 |
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薛盈文1,2, 艾米拉古丽3, 王志敏1, 王彬1, 张英华1
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| (1.中国农业大学 农学与生物技术学院, 北京 100193;2.黑龙江八一农垦大学 农学院, 黑龙江 大庆 163319;3.新疆克州种子管理站, 新疆 克州 845350) |
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| 摘要: |
| 为研究行距对晚播冬小麦群体物质积累、水分利用的影响，设置行距为12、20、30 cm 3个处理，分析不同行距处理的群体物质积累、叶面积指数、水分消耗参数、产量和水分利用效率。结果表明，在晚播限水灌溉条件下，适当缩小行距(12 cm)可以增加冬小麦群体叶面积指数，提高群体物质积累和花后物质积累比例；与30 cm行距相比，12 cm行距能充分利用40~120 cm土体内的土壤水分，显著提高产量和水分利用效率(19.8~20.4 kg/(hm2·mm))。适当缩小行距至12 cm可能是提高晚播冬小麦产量和水分利用效率的有效措施。 |
| 关键词: 小麦 行距 物质生产 水分利用 产量 |
| DOI：10.11841/j.issn.1007-4333.2014.05.01 |
| 投稿时间：2014-01-02 |
| 基金项目:国家科技支撑计划项目（2011BAD16B14）；公益性行业科研专项项目（201303133，201203031）；小麦产业技术体系（CARS-3-1-25）；北京市青年英才专项（31056101） |
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| Effect of rowing space on population dry matter accumulation and water utilization of late-sowing winter wheat |
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XUE Ying-wen1,2, AMI La-guli3, WANG Zhi-min1, WANG Bin1, ZHANG Ying-hua1
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| (1.College of Agronomy and Biotechnology, China Agricultural University, Beijing 100193, China;2.College of Agronomy, Heilongjiang Bayi Agricultural University, Daqing 163319, China;3.Seed Management Station of Kezhou, Kezhou 845350, China) |
| Abstract: |
| To investigate the effects of rowing space on the population dry matter accumulation and water utilization of late-sowing winter wheat, three rowing spaces (12 cm (R12), 20 cm (R20), 30 cm (R30)) were designed, and the population dry matter, leaf area index, the water consumption parameter, yield and water use efficiency were analyzed.The results indicated that reducing aptly rowing space to 12 cm under the late-sowing and limited water condition could increase the leaf area index, enhance the population dry matter and the ratio of dry matter post-anthesis.Compared to the R30, the more water of 40-120 cm soil layer under R12 was used, the yield and the water utilization efficiency (19.8-20.4 kg/(hm2·mm)) of R12 population were significantly higher.Reducing aptly rowing space to 12 cm might be an effective measure to increase population yield and water use efficiency in late-sowing winter wheat. |
| Key words: wheat rowing space matter accumulation water utilization yield |
