| 玉米苗期调亏技术的研究 |
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| 引用本文： | 谭国波,赵立群,张丽华,赵洪祥,方向前,孟祥盟,闫伟平,徐长洪,韩喜国,边少锋.玉米苗期调亏技术的研究[J].吉林农业科学,2009,34(1). |
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| 作者姓名： | 谭国波 赵立群 张丽华 赵洪祥 方向前 孟祥盟 闫伟平 徐长洪 韩喜国 边少锋 |
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| 作者单位： | 1. 吉林省农业科学院,长春,130033
2. 白城市农业科学院,吉林,白城,137000 |
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| 基金项目： | 国家高技术研究发展计划(863计划) |
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| 摘 要： | 以玉米为试验材料,利用盆栽试验研究了苗期调亏灌溉对玉米植株性状、光合生理及产量的影响。结果表明,玉米苗期轻度、中度、重度调亏处理株高、茎粗、单株叶面积、单株冠风干重和单株根风干重均低于对照;但根冠比、根长高于对照。在子粒灌浆期测量光合速率,苗期轻度、中度调亏光合速率高于对照,苗期重度调亏光合速率低于对照,但叶片水分利用效率均高于对照。苗期中度调亏增产1.90%,苗期轻度、重度调亏分别减产1.47%和6.58%。苗期土壤持水量在田间持水量的50%以上时,起到蹲苗促根生长的作用,对产量影响差异不显著,可以考虑不灌。
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| 关 键 词： | 玉米 苗期 调亏灌溉 |
Researches on Regulated Deficit Irrigation at Seeding Stage of Maize |
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| TAN Guo-bo,ZHAO Li-qun,Zhang Li-hua,ZHAO Hong-xiang,FANG Xiang-qian,MENG Xiang-meng,YAN Wei-ping,XU Chang-hong,HAN Xi-guo,BIAN Shao-feng.Researches on Regulated Deficit Irrigation at Seeding Stage of Maize[J].Jilin Agricultural Sciences,2009,34(1). |
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| Authors: | TAN Guo-bo ZHAO Li-qun Zhang Li-hua ZHAO Hong-xiang FANG Xiang-qian MENG Xiang-meng YAN Wei-ping XU Chang-hong HAN Xi-guo BIAN Shao-feng |
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| Institution: | 1.Academy of Agricultural Sciences of Jilin Province;Changchun 130124;2.Baicheng Academy of Agricultural Sciences;Baicheng 137000;China |
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| Abstract: | Effects of regulated deficit irrigation(RDI) at seedling stage of maize on plant characters,photosynthesis rate and yield were investigated with pot-cultivated maize.The results indicated that plant height,stem thickness,leaf area and dry weight of crown and root reduced by RDI at seeding stage.But root length and ration of root/shoot increased.Photosynthesis rate determined at filling stage was increased in slight and medium RDI,but it decreased in severe RDI.Water use efficiency was higher in all treatmen... |
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| Keywords: | Maize Seeding stage Regulated deficit irrigation |
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