四川农业大学学报 ›› 1996, Vol. 14 ›› Issue (02): 197-201.doi: 10.16036/j.issn.1000-2650.1996.02.010

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西昌地区春玉米高产综合栽培技术研究

雷圣远   

  1. 四川农业大学农学院, 雅安市 625014
  • 收稿日期:1995-04-13 出版日期:1996-06-30 发布日期:2017-03-07

STUDY ON THE PACKAGE OF CULTURAL PRACTICE IN HIGH-YIELDING SPRING MAIZE IN XICHANG REGION

Lei Shengyuan   

  1. College of Agriculture, SicluanAgrieultural University/Yaan. Sichuan, China 625014
  • Received:1995-04-13 Online:1996-06-30 Published:2017-03-07

摘要: 采用三因素二次通用正交回归旋转试验方法,研究了种植密度、施氮、施钾对春玉米产量的作用及其影响。结果表明施钾 > 施氮 > 种值密度;在密度55200株/hm2和70700株/hm2、施氮218kg/hm2和165kg/hm2、施钾128kg/hm2和110kg/hm2的条件下,可分别获得大面积高于6000kg/hm2和6750kg/hm2的产量。

关键词: 玉米[45CJ, 49EJ], 氮钾平衡, 综合效率

Abstract: An orthogoual rotation and combimational design of guadratic regression was employed to study the yield of spring maize under different effects of transplanting density, nitrogen and potassium application rate. The results showed that potassium application had the greatest effect on yield, followed by nitrogen application rats, transplanting density. Under the conditions of 55200, 70700seedlings/hm2 sown to maize. applying nitrogen fertilizer of 218, 165kg/hm2 and potassium fertilizer of 128, 110kg/hm2, there was respectively for getting a yield over 6750kg and 6000kg per hectare.

Key words: MAIZE, BALANCE BETWEEN NITROGEN AND POTASSIUM, COMPREHENSIVE EFFICIENCY

中图分类号: 

  • S513