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- W2414017791 abstract "There is scientific evidence toward the incorporation, in a near feature, of diffuse reflectance spectroscopy (DRS) as an everyday laboratory tool for soil attribute determination. Nevertheless, research still has to be conducted toward the capabilities of limited ranges of the spectra (i.e., 325–1075 nm), as well as the use of more affordable spectrometers. This study aimed at evaluating the capacity of a 15,000 USD spectrometer for estimating soil organic carbon (SOC) and texture. Soil samples were collected in 10 Ferralsol profiles of basaltic parental material in Serra Geral Formation in southern of Brazil. Spectral signatures were collected in 45 air-dried soil samples previously sieved through 2-mm mesh and 45 soil samples grounded in an agate mortar. Sample preparation through pestle grounding showed a slight gain in modeling accuracy. The best results of partial least squares regression (PLSR) were achieved for SOC with an error of prediction of 2.44 g kg−1, R 2 of 0.88, and RPD of 2.85. These results are an indication of the applicability of a low-cost spectrometer for soil attribute determination through DRS. This approach could lead to a wider adoption of the technique, especially in laboratories were there are budget limitations and are in need of this important soil attribute determination." @default.
- W2414017791 created "2016-06-24" @default.
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- W2414017791 date "2016-01-01" @default.
- W2414017791 modified "2023-09-26" @default.
- W2414017791 title "Digital Soil Morphometrics via a Low-Cost Radiometer for Estimating Soil Organic Carbon and Texture" @default.
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- W2414017791 doi "https://doi.org/10.1007/978-981-10-0415-5_20" @default.
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