四川农业大学学报 ›› 2014, Vol. 32 ›› Issue (3): 247-251.doi: 10.3969/j.issn.1000-2650.2014.03.001

• 研究论文 •    下一篇

结实期施氮对寒地水稻群体源库关系及产量的影响

黄成亮,王龙,仲维君,张丽微,郑悦,李丹丹,潘世驹,钱永德*   

  1. 黑龙江八一农垦大学农学院, 黑龙江省普通高校寒地作物栽培技术重点实验室, 黑龙江 大庆 163319
  • 收稿日期:2014-06-16 出版日期:2014-09-06
  • 作者简介:黄成亮,硕士研究生。*责任作者:钱永德,博士,副教授,主要进行水稻高产理论与生理基础研究。
  • 基金资助:

    黑龙江八一农垦大学学成、引进人才科研启动计划项目:寒地水稻育苗关键技术研究; 黑龙江省农垦总局科技推广项目:垦粳五号水稻新品种示范

Effects of Nitrogen Fertilizer During the Productive Phase on Source-sink Relationship and Yield of Rice Population in the Cold Region

HUANG Cheng-liang, WANG Long, ZHONG Wei-jun, ZHANG Li-wei,ZHENG Yue, LI Dan-dan, PAN Shi-ju, QIAN Yong-de*   

  1. Key Laboratory of Crop Cultivation in Cold Area, College and University, HLJ Province,Heilongjiang Bayi Agricultural University, Daqing 163319, Heilongjiang, China
  • Received:2014-06-16 Online:2014-09-06

摘要:

【目的】研究结实期不同施氮量对寒地水稻群体源库关系及产量的影响,为结实期合理施氮提供理论依据。【方法】采用随机区组设计,研究结实期5个施氮水平对空育131群体源库关系及产量的影响。【结果】施氮22.5~67.5 kg/hm2对空育131的叶面积指数、库容量、平方米穗数、穗粒数、千粒重、产量及整精米产量均有一定的促进作用,存在最适值;施氮67.5 kg/hm2时稻谷产量及整精米产量分别达到13 581 kg/hm2、8 914 kg/hm2,与对照差异均达到极显著水平。【结论】在寒地条件下,施氮67.5 kg/hm2对空育131的增产及其他指标的综合提高效果明显,结实期适量施氮可以提高群体稻谷产量和整精米产量。

关键词: 粳稻, 结实期, 氮肥, 群体质量, 产量

Abstract:

【Objective】 The aim of this study was to explore the effects of nitrogen fertilizer during the productive phase on source-sink relationship and yield of rice population in the cold region. The results may provide a theoretical basis for reasonable application of nitrogen fertilizer. 【Method】 Randomized block design was used to investigate the effects of 5 nitrogen addition levels during the productive phase on source-sink relationship and yield of Kongyu 131 population. 【Results】 Nitrogen application (22.5-67.5 kg/hm2) had positive effects on leaf area index, storage capacity, spikes grains of per square meter, grain number per spike, 1 000-grain weight, yield and head rice of Kongyu 131. When nitrogen application was 67.5 kg/hm2, the grain yield and head rice were 13 581 kg/hm2 and 8 914 kg/hm2, respectively. They were significantly higher than those of the control. 【Conclusion】 In the cold region, when nitrogen application was 67.5 kg/hm2, the yield and other indicators of Kongyu 131 were enhanced obviously. Nitrogen fertilizer during the productive phase may increase the yield of rice in groups and head rice.

Key words: japonica rice, grain filling stage, nitrogen fertilizer, population quality, yield

中图分类号: 

  • S511