| 沙地春玉米孕穗期和开花期土壤水分与产量的关系研究 |
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| 引用本文： | 崔建垣,张铜会,李玉霖.沙地春玉米孕穗期和开花期土壤水分与产量的关系研究[J].中国沙漠,2000,20(Z1):62-63. |
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| 作者姓名： | 崔建垣 张铜会 李玉霖 |
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| 作者单位： | 中国科学院 寒区旱区环境与工程研究所, 甘肃 兰州 730000 |
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| 基金项目： | 国家"973"项目(G1999043400);国家"九五"攻关项目(96-920-13-02);院特别支持项目(KZ95T-04;KZ951-A1-301);院重点项目(KZ-952-91-218);国家重大基金课题(49890330);内蒙科委课题"西部之光"(999078);自然科学基金(990141) |
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| 摘 要： | 采用回归旋转正交组合设计,对盆栽春玉米进行了孕穗期和开花期不同土壤水分处理试验。建立了孕穗期(X1)和开花期(X2)土壤水分与产量(Y)的关系模型:Y=90.5+7.98X1+6.97X2-2.25X1X2+6.38X12-7.38X22。孕穗期的土壤相对含水量不应低于54%。开花期的理想土壤相对含水量为65%。
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| 关 键 词： | 沙地 春玉米 土壤水分 产量 |
| 收稿时间： | 2000-01-15 |
| 修稿时间： | 2000-03-20 |
Relationship between Corn Yield and Soil Water in Elongation Stage and Blooming Stage |
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| CUI Jian-yuan,ZHANG Tong-hu,LI Yu-lin.Relationship between Corn Yield and Soil Water in Elongation Stage and Blooming Stage[J].Journal of Desert Research,2000,20(Z1):62-63. |
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| Authors: | CUI Jian-yuan ZHANG Tong-hu LI Yu-lin |
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| Institution: | Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou 730000, China |
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| Abstract: | The mathematical model for the relationship between corn yield(Y) and soil water at elongation and blooming stage has been established:Y=90.5+7.98X1+6.97X2-2.25X1X2+6.38X12-7.38X22.The result shows that the field moisture capacity at elongation stage should not below than 54%,and a 70%~74% of field moisture capacity at elongation stage,60%~70% at blooming stage will help to produce the best yield. |
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| Keywords: | corn yield soil water yield |
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