Predicting soil test phosphorus decrease in non - P - fertilized conditions

Monitoring the availability of phosphorus (P) in soil under continuous cropping facilitates finding deficiency in crops and contributes to improving crop growth and nutrient management models. Soil P availability for crops is usually estimated by soil test P (STP), such as Bray-1. This is widely use...

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Detalles Bibliográficos
Otros Autores: Appelhans, Stefania Carolina, Carciochi, Walter D., Correndo, Adrián Alejandro, Gutiérrez Boem, Flavio Hernán, Salvagiotti, Fernando, García, Fernando Oscar, Melchiori, Ricardo José Miguel, Barbagelata, Pedro A.
Formato: Artículo
Lenguaje:Inglés
Materias:
BRAY-1
P REMOVAL
SOIL ORGANIC MATTER
SOIL TEST P (STP)
SOIL TEXTURE
Acceso en línea:http://ri.agro.uba.ar/files/intranet/articulo/2020appelhans.pdf
LINK AL EDITOR
Aporte de:Registro referencial: Solicitar el recurso aquí
Biblioteca Central (FAUBA) de Universidad de Buenos Aires
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245 1 0 |a Predicting soil test phosphorus decrease in non - P - fertilized conditions 
520 |a Monitoring the availability of phosphorus (P) in soil under continuous cropping facilitates finding deficiency in crops and contributes to improving crop growth and nutrient management models. Soil P availability for crops is usually estimated by soil test P (STP), such as Bray-1. This is widely used in the Americas. The relationship between the decrease of STP Bray-1 and cumulative removal of P was evaluated in non-P-fertilized areas in long-term studies. This removal was the sum of annual P removal over the study period as P exported in grains/crop outside the soil. The objectives were to: (a) quantify changes in STP as a function of cumulative P removal, (b) assess the relationship between relative decrease rate of STP and soil variables as well as annual removal of P by crops, and (c) develop a model to predict decrease of STP Bray-1. Exponential decay functions were used to describe annual cumulative removal of P and STP from soil over time for 12 long-term studies where no addition of P fertilizer was carried out. Changes in the relative rate of decrease of STP, relative to the initial STP Bray-1 value at the onset of the experiment, were predicted by the ratio of soil organic matter to clay and silt and the average annual P removal by exponential decay (R2 adj = 0.64; RMSE = 3.2 mg kg−1). We propose this predictive model as suitable to provide estimates of the relative decrease rate of STP by Bray-1 and thereby improve management of P for optimizing crop yield. 
650 |2 Agrovoc  |9 26 
653 |a BRAY-1 
653 |a P REMOVAL 
653 |a SOIL ORGANIC MATTER 
653 |a SOIL TEST P (STP) 
653 |a SOIL TEXTURE 
700 1 |9 72287  |a Appelhans, Stefania Carolina  |u Instituto Nacional de Tecnología Agropecuaria (INTA). Centro Regional Buenos Aires Norte. Estación Experimental Agropecuaria Paraná (EEA Paraná). Paraná, Entre Ríos. Argentina.  |u Universidad Nacional de Entre Ríos. Facultad de Ciencias Agropecuarias. Paraná, Argentina.  |u CONICET, Buenos Aires, Argentina.  |u Kansas State University. Department of Agronomy. Manhattan, Kansas. USA. 
700 1 |a Carciochi, Walter D.  |u CONICET, Buenos Aires, Argentina.  |u Kansas State University. Department of Agronomy. Manhattan, Kansas. USA.  |9 71871 
700 1 |9 32879  |a Correndo, Adrián Alejandro  |u Kansas State University. Department of Agronomy. Manhattan, Kansas. USA. 
700 1 |9 6387  |a Gutiérrez Boem, Flavio Hernán  |u Universidad de Buenos Aires. Facultad de Agronomía. Instituto de Investigaciones en Biociencias Agrícolas y Ambientales (INBA). Buenos Aires, Argentina.  |u CONICET – Universidad de Buenos Aires. Instituto de Investigaciones en Biociencias Agrícolas y Ambientales (INBA). Buenos Aires, Argentina. 
700 1 |a Salvagiotti, Fernando  |u Instituto Nacional de Tecnología Agropecuaria (INTA). Centro Regional Santa Fe. Estación Experimental Agropecuaria Oliveros (EEA Oliveros). Santa Fe, Argentina.  |9 40308 
700 1 |a García, Fernando Oscar  |u International Plant Nutrition Institute. Latin America Southern Cone. Buenos Aires, Argentina.  |9 9707 
700 1 |9 50590  |a Melchiori, Ricardo José Miguel  |u Instituto Nacional de Tecnología Agropecuaria (INTA). Centro Regional Buenos Aires Norte. Estación Experimental Agropecuaria Paraná (EEA Paraná). Paraná, Entre Ríos. Argentina. 
700 1 |9 41661  |a Barbagelata, Pedro A.  |u Instituto Nacional de Tecnología Agropecuaria (INTA). Centro Regional Buenos Aires Norte. Estación Experimental Agropecuaria Paraná (EEA Paraná). Paraná, Entre Ríos. Argentina.  |u Universidad Nacional de Entre Ríos. Facultad de Ciencias Agropecuarias. Paraná, Argentina. 
773 0 |t European journal of soil science  |w SECS000078  |g Vol.72, no.1 (2020), art.12946, p.254-264, grafs., tbls. mapas 
856 |f 2020appelhans  |i en reservorio  |q application/pdf  |u http://ri.agro.uba.ar/files/intranet/articulo/2020appelhans.pdf  |x ARTI202204 
856 |z LINK AL EDITOR  |u https://www.wiley.com 
942 |c ARTICULO 
942 |c ENLINEA 
976 |a AAG 

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