| 促芽肥施用时期对杂交中稻再生力的影响 |
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| 引用本文： | 徐富贤,熊洪,洪松. 促芽肥施用时期对杂交中稻再生力的影响[J]. 四川农业大学学报, 2001, 19(1): 21-23,39 |
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| 作者姓名： | 徐富贤 熊洪 洪松 |
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| 作者单位： | 四川省农业科学院水稻高粱研究所,;四川省农业科学院水稻高粱研究所,;四川省农业科学院水稻高粱研究所, |
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| 基金项目： | 四川省科技厅应用基础研究项目 |
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| 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
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| 关 键 词： | 杂交中稻 促芽肥 施用时期 再生力 |
| 文章编号： | 1000-2650(2001)01-0021-04 |
Effect of N Applicationfor Bud Development at Different Days after Full Heading of Main Crop on the RatooningAbility in Hybrid Mid-Rice |
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| XU Fu-xian,Xiong Hong,Hong Song. Effect of N Applicationfor Bud Development at Different Days after Full Heading of Main Crop on the RatooningAbility in Hybrid Mid-Rice[J]. Journal of Sichuan Agricultural University, 2001, 19(1): 21-23,39 |
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| Authors: | XU Fu-xian Xiong Hong Hong Song |
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| 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. |
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| Keywords: | HYBRID MID RICE N APPLICATION FOR BUD DEVELOPMENT DRESSING DATE RATOONING RICE. |
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