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中国沙漠 ›› 2000, Vol. 20 ›› Issue (s1): 62-63.

• 论文 • 上一篇    下一篇

沙地春玉米孕穗期和开花期土壤水分与产量的关系研究

崔建垣, 张铜会, 李玉霖   

  1. 中国科学院 寒区旱区环境与工程研究所, 甘肃 兰州 730000
  • 收稿日期:2000-01-15 修回日期:2000-03-20 出版日期:2000-12-31 发布日期:2000-12-31
  • 作者简介:崔建垣(1969-),男(汉族),甘肃靖远人,硕士,助理研究员,主要从事作物栽培研究。
  • 基金资助:
    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)

Relationship between Corn Yield and Soil Water in Elongation Stage and Blooming Stage

CUI Jian-yuan, ZHANG Tong-hu, LI Yu-lin   

  1. Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou 730000, China
  • Received:2000-01-15 Revised:2000-03-20 Online:2000-12-31 Published:2000-12-31

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%。

关键词: 沙地, 春玉米, 土壤水分, 产量

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.

Key words: corn, yield, soil water, yield

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