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Abono del suelo ; Agrología ; Carbono ; China ; China del Norte ; Experimentación ; Geoquímica ; Materia orgánica ; Propiedades del suelo ; Práctica de cultivo
(supprimer)
-year (1991–2005) fertilization sites of northern China. Six treatments were examined. It is highlighted that soil organic matter was significantly higher under P than under no-P fertilization. Soil organic matter accumulation significantly positively