| 麦棉套作条件下棉麦对氮素吸收规律的研究 |
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| 引用本文： | 曹鸿鸣,贺明荣,王明友,王振林.麦棉套作条件下棉麦对氮素吸收规律的研究[J].核农学报,1996,10(2):104-108. |
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| 作者姓名： | 曹鸿鸣 贺明荣 王明友 王振林 |
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| 作者单位： | 山东农业大学农学系,山东农业大学农学系,山东农业大学农学系,山东农业大学农学系 泰安 271018 ,泰安 271018 ,泰安 271018 ,泰安 271018 |
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| 摘 要： | 运用~(15)N示踪技术研究了麦棉套种条件下棉麦氮素吸收和运转分配规律。结果表明,麦棉套作条件下,小麦对肥料氮的吸收和利用率显著提高,且所吸收的氮素较多地分配到籽粒中。与此相反,棉花所吸收的氮量和肥料氮利用率均比纯作春棉降低,收获期有较多的氮素滞留于营养器官和铃壳中。
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| 关 键 词： | 小麦 棉花 套作 氮素 |
| 收稿时间： | 2009-12-31 |
| 修稿时间： | 2009-12-31 |
STUDY ON N UTILIZATION BY WHEAT AND COTTON UNDER THE INTERPLANTING CONDITION |
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| Abstract: | Using 15 N tracer technique, the N utilization and distribution of interplanted wheat with cotton were studied. The results showed that the efficiency of fertilizer N used by wheat increased and a higher percentage of N absorbed was translocated into grain under the interplant-ing condition. On the contrary, N utilization and absorption by cotton decreased. At harvest, a higher percentage of nitrogen remained in vegetative organs. |
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| Keywords: | wheat cotton interplanting nitrogen untilization |
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