Long-term fertilization impacts on soil phosphorus forms using XANES and NMR spectroscopy
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Le résumé fourni par la source
A 32-year fertilizer experiment was conducted to investigate mineral and organic fertilization impacts on soil P forms by P K-edge X-ray absorption near edge structure and solution 31P nuclear magnetic resonance spectroscopy. The experiment included six treatments: control without fertilization, mineral fertilizers (NPK), pig manure at 30,000 (M1) and 60,000 kg ha–1 (M2), M1 plus NPK, and M2 plus NPK. The predominant P compounds were hydroxyapatite (up to 51.3% of soil total P) and orthophosphate and orthophosphate monoesters (up to 85.7% and 57.0% of soil NaOH-EDTA extractable total P, respectively). Compared with the control, the concentrations and proportions of monocalcium phosphate and orthophosphate increased following mineral fertilizers alone. Manure application, especially high rate manure combined with mineral fertilizers, further increased the concentrations and proportions of monocalcium phosphate and orthophosphate relative to mineral fertilizers alone. Moreover, manure amendment also generally increased the concentrations of other inorganic and organic P compounds. Manure application improve soil P availability by adding high concentrations of bioavailable inorganic P compounds to soil, similar to the addition of mineral fertilizers. This study contributes to the understanding of applied fertilizers and residual soil P dynamics and provides insights for sustainable P management in agricultural ecosystems.
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Le contrôle bibliographique ouvert
DOI retrouvé dans Crossref DOI retrouvé ; titre concordant.
- Titre Crossref
- Long-term fertilization impacts on soil phosphorus forms using XANES and NMR spectroscopy
- Date Crossref
- 03/06/2022
- Éditeur
- Informa UK Limited
- Type
- journal-article
Ce recoupement confirme des métadonnées liées au DOI. Il ne confirme ni la méthode ni les conclusions de l’étude, et il ne compte pas comme une seconde source scientifique indépendante.
Où se fait cette recherche
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Jilin Agricultural University pays non établi dans la noticeUniversité ou école supérieure
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Jilin Academy of Agricultural Sciences pays non établi dans la noticeStructure de recherche
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College of Resource and Environmental Science Key Laboratory of Soil Resource Sustainable Utilization for Commodity Grain Bases of Jilin Province pays non établi dans la noticeUniversité ou école supérieure
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Institute of Agricultural Biotechnology pays non établi dans la noticeStructure de recherche
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Institute of Agricultural Resources and Environments pays non établi dans la noticeStructure de recherche
Jilin Agricultural University, Jilin Academy of Agricultural Sciences et Key Laboratory of Soil Resource Sustainable Utilization for Commodity Grain Bases of Jilin Province — College of Resource and Environmental Science, avec 2 autres affiliations.
Une affiliation ne permet pas de déduire la nationalité d’un auteur.