湖北农业科学 ›› 2020, Vol. 59 ›› Issue (23): 48-50.doi: 10.14088/j.cnki.issn0439-8114.2020.23.011

• 育种·栽培 • 上一篇    下一篇

种植密度和施氮量对直播棉冈棉11号产量及相关性状的影响

赵树琪, 闫振华, 张华崇, 李蔚, 黄晓莉, 戴宝生   

  1. 黄冈市农业科学院,湖北 黄冈 438000
  • 收稿日期:2020-06-30 出版日期:2020-12-10 发布日期:2020-12-30
  • 通讯作者: 李蔚,正高职高级农艺师,主要从事棉花育种与栽培研究,(电话)13986568324(电子信箱)hbhgliwei@126.com
  • 作者简介:赵树琪(1989-),男,山东广饶人,农艺师,硕士,主要从事棉花育种与栽培研究,(电话)15572335763(电子信箱)shuqi0546@163.com
  • 基金资助:
    国家现代农业产业技术体系资金资助项目(CARS-18-41);湖北省农业科技创新中心资助项目(2018-620-001-03)

Effects of planting density and nitrogen application on yield and related characters of direct-seeded cotton variety Gangmian 11

ZHAO Shu-qi, YAN Zhen-hua, ZHANG Hua-chong, LI Wei, HUANG Xiao-li, DAI Bao-sheng   

  1. Huanggang Academy of Agricultural Sciences,Huanggang 438000,Hubei,China
  • Received:2020-06-30 Online:2020-12-10 Published:2020-12-30

摘要: 以直播棉冈棉11号为材料,设置3个不同种植密度、5个不同施氮量处理,探究鄂东植棉区种植密度和施氮量对直播棉产量及其相关性状的影响,为冈棉11号的推广应用提供理论支持。结果表明,在一定范围内,随着施氮量增加,冈棉11号产量增加,当施氮量高于112.5 kg/hm2时,产量不增反减;高种植密度处理即82 500株/hm2下产量最高,与中种植密度71 250株/hm2条件下相差不大,差异不显著。综上,冈棉11号在鄂东植棉区种植密度应控制在7.2万~8.2万株/hm2、施氮量可减少至112.5 kg/hm2,此条件下可以获得高产。

关键词: 棉花, 冈棉11号, 直播, 种植密度, 施氮量, 产量

Abstract: In order to provide theoretical support for the popularization and application of direct-seeded cotton Gangmian 11,three densities and five nitrogen fertilizer treatments were used to study the effects of density and nitrogen application on the yield and related characters in eastern Hubei province.The results showed that in a certain range,with the increasing of nitrogen application,the yield of Gangmian 11 increased.When the nitrogen application was higher than 112.5 kg/hm2,the yield was lower than that under this nitrogen application level.when the high density treatment was 82 500 plants/hm2,the yield was the highest,and there was no significant difference between the high density treatment and the medium density treatment of 71 250 plants/hm2.To sum up,in eastern Hubei province,to obtain high yield,the density was controlled at 72 000 plants/hm2 to 82 000 plants/hm2 and the nitrogen application could be reduced to 112.5 kg/hm2.

Key words: cotto, Gangmian 11, direct-seeded, planting density, nitrogen application, yield

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