四川农业大学学报 ›› 2001, Vol. 19 ›› Issue (01): 21-23,39.doi: 10.16036/j.issn.1000-2650.2001.01.005

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促芽肥施用时期对杂交中稻再生力的影响

徐富贤, 熊洪, 洪松   

  1. 四川省农业科学院 水稻高粱研究所, 四川 泸州 646100
  • 收稿日期:2000-05-25 出版日期:2001-03-15 发布日期:2017-03-06
  • 基金资助:
    四川省科技厅应用基础研究项目

Effect of N Application for Bud Development at Different Days after Full Heading of Main Crop on the Ratooning Ability in Hybrid Mid-Rice

XU Fu-xian, XIONG Hong, HONG-Song   

  1. Rice and Sorghum Institute, Sichuan Academy of Agricultural Sciences, Luzhou 646100, Sichuan, China
  • Received:2000-05-25 Online:2001-03-15 Published:2017-03-06

摘要: 以K优5号为材料,研究了促芽肥施用时期与杂交中稻再生力关系。结果表明:促芽肥对再生芽生长的作用从头季稻齐穗后10d左右开始显现;从头季稻齐穗至成熟,促芽肥施用时期越早越有利于提高再生力,以头季稻齐穗期施肥为佳,提早促芽肥施用时期对提高再生力的效果与母茎营养状况有关,当母茎营养状况过好或极差时,其作用效果极小。

关键词: 杂交中稻, 促芽肥, 施用时期, 再生力

Abstract: The relation between N applying for bud development(NABD) at different days after full heading of main crop and the ratooning ability in hybrid mid rice was studied with the hybrid K-You 5. The results are as follows:the effect of the NABD appears around 10 days after full heading of main crop; From full heading to harvest of main crop, highly significant negative correlation is observed between ratooning ablitity and the days from NABD date to the full heading of main crop; Effect of date for the NABD on grain yield increase of ratooning rice is related to the dry weight of the basic stems, the effect is little when the dry weight of the basic stems is very high or low.

Key words: HYBRID MID-RICE, N APPLICATION FOR BUD DEVELOPMENT, DRESSING DATE, RATOONING RICE

中图分类号: 

  • S511.3+2.062