| 肥料运筹对小麦群体质量的调节效应 |
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| 引用本文： | 朱新开,郭文善,封超年,严六零,彭永欣,王龙俊,唐明珍,陈维新. 肥料运筹对小麦群体质量的调节效应[J]. 扬州大学学报(农业与生命科学版), 1998, 0(1) |
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| 作者姓名： | 朱新开 郭文善 封超年 严六零 彭永欣 王龙俊 唐明珍 陈维新 |
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| 作者单位： | 江苏农学院农学系 |
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| 基金项目： | 江苏省“九五”农业科技攻关项目 |
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| 摘 要： | 分析肥料运筹对小麦群体质量的影响表明，小麦一生氮肥适宜运筹比例为基蘖肥占一生总施肥量的６０％左右，拔节孕穗肥占４０％左右，磷、钾肥宜作基肥和返青拔节肥二次施用。前期施氮肥过多易使群体发育不协调，分蘖成穗率降低，粒叶比小，产量低；后期适量施氮并配合磷、钾肥施用，能有效地增加孕穗后光合物质生产，粒叶比大，产量高。
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| 关 键 词： | 小麦；肥料；群体质量 |
EFFECT OF FERTILIZER APPLICATION ON POPULATION QUALITY IN WHEAT |
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| Zhu Xinkai Guo Wenshan Feng Chaonian Yan Liuling Peng Yongxin et al. EFFECT OF FERTILIZER APPLICATION ON POPULATION QUALITY IN WHEAT[J]. Journal of Yangzhou University(Agricultural and Life Science Edition), 1998, 0(1) |
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| Authors: | Zhu Xinkai Guo Wenshan Feng Chaonian Yan Liuling Peng Yongxin et al |
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| Abstract: | The effects of fertilizer application on population quality in wheat were studied during 1992-1995. The main results were as follows: The suitable ratio of N fertilizer applied at pre sowing and tillering stages to that at elongating or booting stage was 6 to 4. P fertilizer and K fertilizer should be applied before sowing or during turning green to elongating stage. The excessive application of N fertilizer at early stages could reduce grain leaf ratio and grain yields. The application of N, P and K fertilizer after elongating stage could increase the production of photosynthate after anthesis, which resulted in the rising of grain leaf ratio and grain yield. |
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| Keywords: | wheat fertilizing population quality |
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