| 氮素形态对不同专用型小麦根系及氮素利用率影响的研究 |
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| 引用本文： | 马新明,王志强,王小纯,王书丽.氮素形态对不同专用型小麦根系及氮素利用率影响的研究[J].应用生态学报,2004,15(4):655-658. |
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| 作者姓名： | 马新明 王志强 王小纯 王书丽 |
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| 作者单位： | 河南农业大学农学院,郑州,450002 |
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| 基金项目： | 国家 8 63项目 ( 2 0 0 1AA115 3 80 )，河南省高校科技人才创新工程资助项目 ( 2 0 0 2KJCX0 5 ) |
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| 摘 要： | 采用盆栽方法研究了3种氮素形态对不同专用型小麦根系及氮素利用率的影响．结果表明，拔节期以后，强筋型小麦豫麦34在酰胺态氮处理下，根系生物量、根系活力、氮素利用率、氮收获指数和籽粒蛋白质含量最高，铵态氮处理次之，硝态氮处理最低．中筋型小麦豫麦49的各测定指标以铵态氮处理最高，其它指标在酰胺态氮和铵态氮间的趋势不同；弱筋型小麦豫麦50在酰胺态氮处理下各项指标最高，而铵态氮处理下蛋白质含量最低，符合品种优质和专用，氮收获指数与籽粒蛋白质含量之间呈现极显著正相关。
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| 关 键 词： | 氮素形态 专用型小麦 根系 氮素利用率 |
| 文章编号： | 1001-9332(2004)04-0655-04 |
| 修稿时间： | 2002年9月2日 |
Effects of nitrogen forms on roots and N fertilizer efficiency of different wheat cultivars with specialized end-uses |
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| MA Xinming,WANG Zhiqiang,WANG Xiaochun,WANG Shuli.Effects of nitrogen forms on roots and N fertilizer efficiency of different wheat cultivars with specialized end-uses[J].Chinese Journal of Applied Ecology,2004,15(4):655-658. |
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| Authors: | MA Xinming WANG Zhiqiang WANG Xiaochun WANG Shuli |
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| Institution: | College of Agronomy, Henan Agricultural University, Zhengzhou 450002, China. xinmingma@371.net |
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| Abstract: | A pot experiment showed that under NH\-2-N treatment,strong gluten wheat Yumai 34 had the highest root biomass,root activity,N use efficiency,N harvest index and grain protein content,but all of these were the lowest under NO -\-3-N treatment.For the medium gluten wheat Yumai 49,the items measured were the highest under NH\ \-4-N treatment,but not the same trend under NO - 3-N and NH\-2-N treatments.For the weak gluten wheat Yumai 50,NH\ \-4-N treatment was the best for its top quality and specialized end-uses.There was a significant relationship between grain protein content and N harvest index. |
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| Keywords: | Nitrogen form Wheat with specialized end-uses Root system N use efficiency |
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