中国稻米

中国稻米 ›› 2014, Vol. 20 ›› Issue (6): 42-45.DOI: 10.3969/j.issn.1006-8082.2014.06.011

• 品种与技术 • 上一篇    下一篇

不同插植密度对寒地水稻叶片生长的影响

  1. 黑龙江省农业科学院水稻研究所，黑龙江 佳木斯 154026
  • 出版日期:2014-11-20 发布日期:2014-11-20
  • 基金资助:

    黑龙江省科技攻关项目“寒地优质多抗超高产水稻新品种选育与配套栽培技术研究”（GA13B101）；国家水稻产业技术体系“现代农业产业技术体系水稻育种与繁育研究”（CARS-01-14）

Effects of Different Planting Density on Leaf Growth of Rice in Cold Region

  • Online:2014-11-20 Published:2014-11-20

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摘要： 以高产优质水稻品种空育131、龙粳26为试验材料，在尿素用量为300 kg/hm2、NPK比为1∶0.5∶0.5的施肥水平下，研究了4个插植密度对水稻叶片生长变化的影响。结果表明，分蘖力强的穗数型品种空育131的适宜插植密度为1.11～1.35万丛/667 m2，分蘖力中等的穗重型品种龙粳26的适宜插植密度为1.65～2.22万丛/667 m2。

关键词: 水稻, 插植密度, 叶片生长, 寒地

Abstract: Field experiment was carried out to study the effects of different planting density on leaf growth of rice Kongyu 131 and Longjing 26 under the condition of urea fertilization amount 300 kg/hm2 and N∶P∶K proportion 1.0∶0.5∶0.5 in cold region in Helongjiang Province. The results showed that the optimum planting density for panicle number type rice Kongyu 131 were 166.5~202.5 thousands hill/hm2, the optimum planting density for heavy panicle type rice Longjing 26 were 247.5~333.0 thousands hill/hm2.

Key words: rice, planting density, leaf growth, cold region

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