| 叶绿素仪与植株硝酸盐浓度测试对冬小麦氮营养诊断准确性的比较研究 |
| |
| 引用本文： | 贾良良,陈新平,张福锁.叶绿素仪与植株硝酸盐浓度测试对冬小麦氮营养诊断准确性的比较研究[J].华北农学报,2007,22(6):157-160. |
| |
| 作者姓名： | 贾良良 陈新平 张福锁 |
| |
| 作者单位： | 1. 中国农业大学,资源与环境学院,教育部植物-土壤相互作用重点实验室,北京,100094;河北省农林科学院农业资源环境研究所,河北,石家庄,050051
2. 中国农业大学,资源与环境学院,教育部植物-土壤相互作用重点实验室,北京,100094 |
| |
| 基金项目： | 国家“十一五”科技支撑项目(2006BAD05B00) |
| |
| 摘 要： | 通过研究不同土壤氮素供应对冬小麦拔节期叶绿素仪SPAD读数和植株硝酸盐浓度的影响,以及两种方法在冬小麦拔节期与土壤Nmin、植株全氮和吸氮量的关系,比较了SPAD叶绿素仪和植株硝酸盐测试两种氮素营养诊断方法的准确性。认为两种方法都可以比较好的反映冬小麦的氮素营养状况,植株硝酸盐浓度与SPAD读数相比能更好的反映作物的氮素营养状况。
|
| 关 键 词： | SPAD叶绿素仪 茎基部硝酸盐浓度 氮素营养状况 冬小麦 |
| 文章编号： | 1000-7091（2007）06-0157-04 |
| 收稿时间： | 2007-10-20 |
| 修稿时间： | 2007年10月20 |
The Comparision of Spad Chlorophyll Meter and Sap Nitrate Test as N Diagnosis Methods for Winter Wheat |
| |
| JIA Liang-liang,CHEN Xin-ping,ZHANG Fu-suo.The Comparision of Spad Chlorophyll Meter and Sap Nitrate Test as N Diagnosis Methods for Winter Wheat[J].Acta Agriculturae Boreali-Sinica,2007,22(6):157-160. |
| |
| Authors: | JIA Liang-liang CHEN Xin-ping ZHANG Fu-suo |
| |
| Abstract: | The effects of different soil N supply on SPAD chlorophyll meter readings and plant sap nitrate concentration were studied for winter at shooting stage.By study the correlations between SPAD chlorophyll meter reading and sap nitrate concentration with soil Nmin and total N content,the accuracy of the two plant N status diagnosis methods were studied.It is showed that the two methods could predict the winter wheat N status correctly,and the plant sap nitrate test is a better method than SPAD chlorophyll meter test.The SPAD chlorophyll meter could be used to as a plant N status diagnosis tool,and could be used in N fertilizer recommendation. |
| |
| Keywords: | SPAD chlorophyll meter Stem sap nitrate test N nutrient status Winter wheat |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
