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| Pavinato,Paulo Sergio; Rocha,Gustavo Cassoni; Cherubin,Maurício Roberto; Harris,Ian; Jones,Davey Leonard; Withers,Paul John Anthony. |
| ABSTRACT: Knowledge of the distribution of total phosphorus (P) content in native soils provides information on the management of ecosystem, land capability for agriculture, environmental quality, and biodiversity conservation. We mapped the spatial distribution of total P concentrations in topsoils (0-30 cm) of uncultivated (native) areas in Brazil. We obtained data on native total P of the southern, south-eastern, and north-eastern regions from reports of exploratory projects developed between 1960s and 1970s by EMBRAPA and by the RADAM Brazil Project. We estimated data from the central-western and northern regions from the relationship between total P and soil properties (Fe, Al, C and clay content), based on the RADAM Brazil Project. Soil total P... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Soil native P; Legacy P; Soil total P; Agriculture expansion. |
| Ano: 2021 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162021000601601 |
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| Soltangheisi,Amin; Santos,Valdevan Rosendo dos; Franco,Henrique Coutinho Junqueira; Kolln,Oriel; Vitti,André Cesar; Dias,Carlos Tadeu dos Santos; Herrera,Wilfrand Ferney Bejarano; Rodrigues,Marcos; Soares,Thais de Marchi; Withers,Paul John Anthony; Pavinato,Paulo Sergio. |
| ABSTRACT: The use of mineral phosphate fertilizers associated with organic residues can improve fertilizer use efficiency and consequently decrease their usage costs. Soil application of filter cake (FC) can provide nutrients and enhance physical quality. This study aimed to evaluate the effects of different phosphate fertilizers [rock phosphate (RP) and triple superphosphate (TSP)] applied at different rates (90 and 180 kg ha-1 P2O5) associated with filter cake (10 Mg ha-1 dry matter) on the soil phosphorus (P) fractions after two consecutive seasons of sugarcane in two distinct soils, sandy and clayey. Yield was significantly improved with FC addition in the first year in both soils, while inorganic P sources did not influence crop yield at either... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Reactive phosphate; P solubility; Soil P fractionation; Organic waste. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832019000100519 |
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