Assessing soil P fractions changes with long‐term phosphorus fertilization related to crop yield of soybean and maize
| Autor: | Flavio Hernán Gutiérrez Boem, Pedro Anibal Barbagelata, Stefania Carolina Appelhans, R.J.M. Melchiori |
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| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
TOTAL P
Rendimiento de Cultivos Soja Fertilización Fosforada Soil Science chemistry.chemical_element P UPTAKE Biology Suelo Soil Human fertilization FERTILIZATION APPARENT P BUDGET Maíz Aplicación de Abonos Crop yield Phosphorus Pollution Maize SOIL COARSE FRACTION Agronomy chemistry ORGANIC P purl.org/becyt/ford/4.1 [https] Fósforo Crop Yield Soybeans Agronomy and Crop Science purl.org/becyt/ford/4 [https] Fertilizer Application |
| Zdroj: | Soil Use and Management : 1-26 (First published: February 2020) INTA Digital (INTA) Instituto Nacional de Tecnología Agropecuaria instacron:INTA CONICET Digital (CONICET) Consejo Nacional de Investigaciones Científicas y Técnicas instacron:CONICET |
| Popis: | Long-term P Fertiliser application increases soil phosphorus (P) labile fractions, which can be associated with crop P uptake and grain yield and are useful to improve fertilizer recommendations. Research aims were to evaluate in long-term experiments with different P Fertiliser application in a Mollisol and a Vertisol: (a) the changes of soil P fractions and (b) the relationship between soil P fractions with long-term P Fertiliser application, with accumulated apparent P budget, grain P, total P uptake, soybean (Glycine max L.Merr.) and maize (Zea mays L.) grain yield. Soil P fractions were measured after 1 and 9 year since the beginning of the long-term experiments. Experiments included an initial Fertiliser application rate of 200 kg P ha−1 and annual P Fertiliser application rate of 36 kg P ha−1. Bray1-P, total, organic, and inorganic P in fine (53 μm) (CF) soil fractions, and in NaHCO3 extract were measured. Initial P Fertiliser application increased inorganic and total P fractions. However, Bray1-P, total P in NaHCO3 extract and in the CF were the fractions that most increased with continuous long-term P Fertiliser application in both sites. In the Mollisol, maize grain yield was unrelated to long-term P Fertiliser application. In the Vertisol, total P in NaHCO3 extract, and total and organic P in the CF were more closely related to soybean grain yield than Bray1-P. We proposed soil P indices of labile inorganic and organic P that showed close relationships with soybean grain yield and may be useful to improve the diagnosis of P soil fertility. Fil: Appelhans, Stefania Carolina. Universidad Nacional de Entre Ríos. Facultad de Ciencias Agropecuarias. Departamento de Producción Vegetal; Argentina. Instituto Nacional de Tecnología Agropecuaria. Centro Regional Entre Ríos. Estación Experimental Agropecuaria Paraná; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Barbagelata, Pedro Aníbal. Universidad Nacional de Entre Ríos. Facultad de Ciencias Agropecuarias. Departamento de Producción Vegetal; Argentina. Instituto Nacional de Tecnología Agropecuaria. Centro Regional Entre Ríos. Estación Experimental Agropecuaria Paraná; Argentina Fil: Melchiori, Ricardo José Miguel. Instituto Nacional de Tecnología Agropecuaria. Centro Regional Entre Ríos. Estación Experimental Agropecuaria Paraná; Argentina Fil: Gutiérrez Boem, Flavio Hernán. Universidad de Buenos Aires. Facultad de Agronomía. Departamento de Ingeniería Agrícola y Uso de la Tierra. Cátedra de Fertilidad y Fertilizantes; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Instituto de Investigaciones en Biociencias Agrícolas y Ambientales. Universidad de Buenos Aires. Facultad de Agronomía. Instituto de Investigaciones en Biociencias Agrícolas y Ambientales; Argentina |
| Databáze: | OpenAIRE |
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