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Database collecting and development of calibration equations for the evaluation of chemical composition of grasses by a NIR spectrophotometer


Database collecting and development of calibration equations for the evaluation of chemical composition of grasses by a NIR spectrophotometer



Zemdirbyste, Mokslo Darbai 82: 157-168



For the development of calibration equations, we collected optical and chemical database including 1022 perennial grass (Lolium rigidum and L. perenne) samples over the period 1998-2001. Grass samples were dried, ground and air-dry scanned by the NIRS-6500 instrument. Sample reflectance spectra were recorded in the range of 400-2500 nm. Chemical composition parameters were determined by reference methods.

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