| 秸秆还田与氮肥耦合对冬小麦光合特性及产量形成的影响 |
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| 引用本文： | 刘义国,林 琪,王月福,郭家选,刘洪军.秸秆还田与氮肥耦合对冬小麦光合特性及产量形成的影响[J].中国生态农业学报,2007,15(1):42-44. |
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| 作者姓名： | 刘义国 林 琪 王月福 郭家选 刘洪军 |
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| 作者单位： | 1. 莱阳农学院,青岛,266109
2. 诸诚市农业局,潍坊,262200 |
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| 基金项目： | 国家高技术研究发展计划(863计划) |
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| 摘 要： | 秸秆还田下不同N肥用量的耦合试验研究表明,与单施N肥处理比较,秸秆还田能明显改善冬小麦的光合性能,提高小麦千粒重,进而提高小麦产量。秸秆还田下随施N量增加,小麦各时期光合速率和蒸腾速率显著提高,但当施N量超过225kg/hm2,反而引起光合性能降低。本试验结果表明,秸秆还田下配施N肥主要通过影响每hm2穗数影响产量,以秸秆还田配施N 225kg/hm2的处理为宜。
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| 关 键 词： | 秸秆还田 N肥 冬小麦 光合特性 产量 |
| 收稿时间： | 2005-08-27 |
| 修稿时间： | 2005-10-24 |
Effects of coupling of straw-return and nitrogen fertilizer on photosynthetic characters and yield of winter wheat |
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| LIU Yi-Guo,LIN Qi,WANG Yue-Fu,GUO Jia-Xuan and LIU Hong-Jun.Effects of coupling of straw-return and nitrogen fertilizer on photosynthetic characters and yield of winter wheat[J].Chinese Journal of Eco-Agriculture,2007,15(1):42-44. |
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| Authors: | LIU Yi-Guo LIN Qi WANG Yue-Fu GUO Jia-Xuan and LIU Hong-Jun |
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| Institution: | 1. Laiyang Agricultural College, Qingdao 266109, China; 2. Agriculture Bureau of Zhucheng, Weifang 262200, China |
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| Abstract: | Effects of the coupling of straw(wheat)-return and different nitrogen amount(four levels)on photosynthetic characters and yield of wheat were studied under field condition.The results show that straw-return can improve photosynthesis of wheat,gets higher thousand-grain weight and grain yield compared to the normal(non-straw) cultivation.The rates of photosynthesis and transpiration of wheat of straw-return treatments are enhanced with the increasing of N fertilizer to a certain applied level.But they start to decrease when the nitrogen is applied more than 225kg/hm~2.The coupling of straw-return and N fertilizer application can increase the wheat yield mainly through affecting the number of ears per hectare.The optimal amount of N fertilizer applied to wheat with straw-return is 225kg/hm~2. |
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| Keywords: | Straw return Nitrogen fertilizer Winter wheat Photosynthetic characters Yield |
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