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MEASUREMENT OF NITRATE-NITROGEN CONCENTRATION IN SOIL BASED ON ABSORPTION SPECTROSCOPY
MEASUREMENT OF NITRATE-NITROGEN CONCENTRATION IN SOIL BASED ON ABSORPTION SPECTROSCOPY
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机译:基于吸收光谱法的土壤硝态氮浓度测量
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摘要
The nitrate-nitrogen concentration in soil is estimated based on the nitrate-nitrogen 200 nm absorption peak. In one embodiment, a device measures the attenuation spectrum of a soil-extractor mixture over a wavelength range that includes wavelengths in the vicinity of the 200 nm absorption peak (the spectral operating range) and then determines the nitrate-nitrogen concentration based on the attenuation spectrum.
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