叶绿素仪在东北春播玉米营养诊断施肥中的应用  

Application of Chlorophyll Meter in Nutrient Diagnosis and Fertilization of Spring Maize in Northeast China

作　　者：焦颖 

机构地区：[1]辽宁职业学院,辽宁铁岭112099

出　　处：《安徽农业科学》2017年第31期18-19,22,共3页Journal of Anhui Agricultural Sciences

基　　金：辽宁省教育厅科学研究项目资助(L2014550)

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。[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.

关 键 词：叶绿素仪 玉米 营养诊断 施肥 

分 类 号：S513[农业科学—作物学]