Using NIRS to predict fiber and nutrient content of dryland cereal cultivars

J Agric Food Chem. 2010 Jan 13;58(1):398-403. doi: 10.1021/jf9025844.

Abstract

Residue from cultivars of spring wheat (Triticum aestivum L.), winter wheat, and spring barley (Hordeum vulgare L.) was characterized for fiber and nutrient traits using reference methods and near-infrared spectroscopy (NIRS). Calibration models were developed for neutral detergent fiber (NDF), acid detergent fiber (ADF), acid detergent lignin (ADL), carbon (C), sulfur (S), nitrogen (N), and C:N. When calibrations were tested against validation sets for each crop year, NIRS was an acceptable method for predicting NDF (standard error of prediction (SEP)<0.87; R2>0.90) and ADF (SEP< 0.81; R2>0.92) and moderately successful for ADL in 1 year of the study (SEP=0.44; R2=0.81) but less successful for C, S, N, and C:N (R2 all<0.57). These results indicate that NIRS can predict the NDF and ADF of cereal residue from dryland cropping systems and is a useful tool to estimate residue decomposition potential.

Publication types

  • Evaluation Study
  • Research Support, Non-U.S. Gov't
  • Research Support, U.S. Gov't, Non-P.H.S.

MeSH terms

  • Carbon / analysis
  • Dietary Fiber / analysis*
  • Hordeum / chemistry*
  • Lignin / analysis
  • Nitrogen / analysis
  • Nutritive Value
  • Spectroscopy, Near-Infrared / methods*
  • Triticum / chemistry*

Substances

  • Dietary Fiber
  • Carbon
  • Lignin
  • Nitrogen