Rapid Assessment of Mineral Concentration in Meadow Grasses by Near Infrared Reflectance Spectroscopy
作者: Alastair WardAnne Lisbeth NielsenHenrik Møller
刊名: Sensors, 2011, Vol.11 (5), pp.4830
来源数据库: Directory of Open Access Journals
关键词: mineralsgrasslandNIRbiogaseutrophication
原始语种摘要: A near infrared reflectance spectroscopy (NIRS) method for rapid determination of nitrogen, phosphorous and potassium in diverse meadow grasses was developed with a view towards utilizing this material for biogas production and organic fertilizer. NIRS spectra between 12,000 cm−1 and 4,000 cm−1 were used. When validated on samples from different years to those used for the calibration set, the NIRS prediction of nitrogen was considered moderately useful with R2 = 0.77, ratio of standard error of prediction to reference data range (RER) of 9.32 and ratio of standard error of prediction to standard deviation of reference data (RPD) of 2.33. Prediction of potassium was less accurate, with R2 = 0.77, RER of 6.56 and RPD of 1.45, whilst prediction of phosphorous was not considered accurate...
全文获取路径: DOAJ  (合作)
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影响因子:1.953 (2012)

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关键词翻译
关键词翻译
  • phosphorous 
  • standard 标准
  • nitrogen 
  • ratio 
  • removal 消去
  • biogas 沼气
  • excess 超量
  • prediction 预报
  • Rapid 拉皮德牌照相机
  • range 射程