Laser-induced breakdown spectroscopy applied to cattle compost for phosphorus quantification
Purpose Agronomic and environmental reasons force farmers to know the total P concentration of composted cattle manure. Laser-Induced Breakdown Spectroscopy seems proper to obtain such information. For logistic reasons (carriage, storage, field application, etc.), a dry matter characterization is al...
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| Format: | Article |
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OICC Press
2022-09-01
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| Series: | International Journal of Recycling of Organic Waste in Agriculture |
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| Online Access: | https://ijrowa.isfahan.iau.ir/article_685629_e79e64d79c735a0d6ce8c2d1e542d525.pdf |
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| author | Alberto Lencina Gustavo Romagnoli Andrea Alonso Noelia Ramos Cristian D’Angelo Lina Lett Silvia Mestelan |
| author_facet | Alberto Lencina Gustavo Romagnoli Andrea Alonso Noelia Ramos Cristian D’Angelo Lina Lett Silvia Mestelan |
| author_sort | Alberto Lencina |
| collection | DOAJ |
| description | Purpose Agronomic and environmental reasons force farmers to know the total P concentration of composted cattle manure. Laser-Induced Breakdown Spectroscopy seems proper to obtain such information. For logistic reasons (carriage, storage, field application, etc.), a dry matter characterization is also needed.Method Thirty samples of feedlot compost at different stages of stability and maturity were studied. Samples were dried at 50°C for dry matter characterization. As a reference method to determine total P concentration, wet digestion and colorimetry were employed. The area of the P I line emission obtained by laser-induced ablation of the samples was measured to estimate the total P concentration. Randomized calibrations through a modified version of the Kennard-Stone algorithm based on the Mahalanobis distance were performed.Results Dry matter varied from 40% to 90%, and no pattern was found related to compost origin, maturity, or stability. The total P concentration of the studied compost ranged from 1800 ppm up to 11200 ppm. Almost 80% of the calibration fittings have an R2 ≥ 0.895. The mean validation error was less than 22% for about 80% of the calibrations, with a mean prediction error bound to 40%. Discarding outliers, the errors were reduced to 19% and 30%, respectively.Conclusion Water content must be considered in addition to other characterizations due to logistic implications. Calibrations with a 30 percent of prediction error were achieved, which seems enough as a first approximation to predict the total P content in compost for utilization in farms to recycle nutrients. |
| format | Article |
| id | doaj-art-a6032c274f11484e94cb81c561b3c179 |
| institution | Kabale University |
| issn | 2195-3228 2251-7715 |
| language | English |
| publishDate | 2022-09-01 |
| publisher | OICC Press |
| record_format | Article |
| series | International Journal of Recycling of Organic Waste in Agriculture |
| spelling | doaj-art-a6032c274f11484e94cb81c561b3c1792025-02-03T00:39:26ZengOICC PressInternational Journal of Recycling of Organic Waste in Agriculture2195-32282251-77152022-09-0111331933210.30486/ijrowa.2021.1917918.1178685629Laser-induced breakdown spectroscopy applied to cattle compost for phosphorus quantificationAlberto Lencina0Gustavo Romagnoli1Andrea Alonso2Noelia Ramos3Cristian D’Angelo4Lina Lett5Silvia Mestelan6Laboratorio de Análisis de Suelos, Facultad de Agronomía, Universidad Nacional del Centro de la Provincia de Buenos Aires, Buenos Aires, ArgentinaLaboratorio de Análisis de Suelos, Facultad de Agronomía, Universidad Nacional del Centro de la Provincia de Buenos Aires, Buenos Aires, ArgentinaLaboratorio de Análisis de Suelos, Facultad de Agronomía, Universidad Nacional del Centro de la Provincia de Buenos Aires, Buenos Aires, ArgentinaCRESCA, Facultad de Agronomía, Universidad Nacional del Centro de la Provincia de Buenos Aires, Buenos Aires, ArgentinaInstituto de Física Arroyo Seco, IFAS (UNCPBA) and CIFICEN (UNCPBA-CICPBA-CONICET), Buenos Aires, ArgentinaCIISAS, Facultad de Agronomía, Universidad Nacional del Centro de la Provincia de Buenos Aires, Buenos Aires, ArgentinaLaboratorio de Análisis de Suelos, Facultad de Agronomía, Universidad Nacional del Centro de la Provincia de Buenos Aires, Buenos Aires, ArgentinaPurpose Agronomic and environmental reasons force farmers to know the total P concentration of composted cattle manure. Laser-Induced Breakdown Spectroscopy seems proper to obtain such information. For logistic reasons (carriage, storage, field application, etc.), a dry matter characterization is also needed.Method Thirty samples of feedlot compost at different stages of stability and maturity were studied. Samples were dried at 50°C for dry matter characterization. As a reference method to determine total P concentration, wet digestion and colorimetry were employed. The area of the P I line emission obtained by laser-induced ablation of the samples was measured to estimate the total P concentration. Randomized calibrations through a modified version of the Kennard-Stone algorithm based on the Mahalanobis distance were performed.Results Dry matter varied from 40% to 90%, and no pattern was found related to compost origin, maturity, or stability. The total P concentration of the studied compost ranged from 1800 ppm up to 11200 ppm. Almost 80% of the calibration fittings have an R2 ≥ 0.895. The mean validation error was less than 22% for about 80% of the calibrations, with a mean prediction error bound to 40%. Discarding outliers, the errors were reduced to 19% and 30%, respectively.Conclusion Water content must be considered in addition to other characterizations due to logistic implications. Calibrations with a 30 percent of prediction error were achieved, which seems enough as a first approximation to predict the total P content in compost for utilization in farms to recycle nutrients.https://ijrowa.isfahan.iau.ir/article_685629_e79e64d79c735a0d6ce8c2d1e542d525.pdffeedlot composttotal phosphorus concentrationlaser-induced breakdown spectroscopy (libs)nutrient recycling |
| spellingShingle | Alberto Lencina Gustavo Romagnoli Andrea Alonso Noelia Ramos Cristian D’Angelo Lina Lett Silvia Mestelan Laser-induced breakdown spectroscopy applied to cattle compost for phosphorus quantification International Journal of Recycling of Organic Waste in Agriculture feedlot compost total phosphorus concentration laser-induced breakdown spectroscopy (libs) nutrient recycling |
| title | Laser-induced breakdown spectroscopy applied to cattle compost for phosphorus quantification |
| title_full | Laser-induced breakdown spectroscopy applied to cattle compost for phosphorus quantification |
| title_fullStr | Laser-induced breakdown spectroscopy applied to cattle compost for phosphorus quantification |
| title_full_unstemmed | Laser-induced breakdown spectroscopy applied to cattle compost for phosphorus quantification |
| title_short | Laser-induced breakdown spectroscopy applied to cattle compost for phosphorus quantification |
| title_sort | laser induced breakdown spectroscopy applied to cattle compost for phosphorus quantification |
| topic | feedlot compost total phosphorus concentration laser-induced breakdown spectroscopy (libs) nutrient recycling |
| url | https://ijrowa.isfahan.iau.ir/article_685629_e79e64d79c735a0d6ce8c2d1e542d525.pdf |
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