| 叶绿素仪在东北春播玉米营养诊断施肥中的应用 |
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| 引用本文： | 焦颖.叶绿素仪在东北春播玉米营养诊断施肥中的应用[J].安徽农业科学,2017,45(31):18-19,22. |
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| 作者姓名： | 焦颖 |
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| 作者单位： | 辽宁职业学院,辽宁铁岭,112099 |
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| 基金项目： | 辽宁省教育厅科学研究项目资助 |
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| 摘 要： | 目的]研究叶绿素仪在东北春播玉米营养诊断施肥中的应用。方法]测定了叶片SPAD值,叶片全氮、全磷和全钾,及玉米相对产量。结果]玉米SPAD值与玉米叶片全氮含量、施氮肥数量、玉米产量之间存在极显著的线性相关性。结论]通过测量玉米SPAD来分析玉米氮素营养、预测东北春播玉米产量具有可行性。
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| 关 键 词： | 叶绿素仪 玉米 营养诊断 施肥 |
Application of Chlorophyll Meter in Nutrient Diagnosis and Fertilization of Spring Maize in Northeast China |
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| Abstract: | Objective] To research the application of chlorophyll meter in nutrient diagnosis and fertilization of spring maize in northeast China.Method] We detected the leaf SPAD value,leaf total nitrogen,total phosphorus,total potassium,and maize relative yield.Result] Maize SPAD had extremely significant linear correlation with leaf total nitrogen content,nitrogen application dosage and maize yield.Conclusion] It was feasible to forecast the yield of spring maize in northeast China by measuring the SPAD and analyzing the maize nitrogen nutrition. |
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| Keywords: | Chlorophyll meter Maize Nutrient diagnosis Fertilizer application |
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