Artículo
Phosphorus placement effects on phosphorous recovery efficiency and grain yield of wheat under no-tillage in the Humid Pampas of Argentina
Barbieri, Pablo Andres
; Sainz Rozas, Hernan Rene
; Covacevich, Fernanda
; Echeverría, Hernán Eduardo
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Fecha de publicación:
11/2014
Editorial:
Hindawi Publishing Corporation
Revista:
International Journal of Agronomy
ISSN:
1687-8159
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
No-till (NT) affects dynamics of phosphorus (P) applied. Wheat response to P fertilization can be affected by available soil P, grain yield, placement, rate, and timing of fertilization. Furthermore, mycorrhizal associations could contribute to improving plant P uptake. Three experiments were used to evaluate P rate (0, 25, and 50 kg P ha−1) and fertilizer placement (broadcasted or deep-banded) effects in NT wheat on P recovery efficiency (PRE) yield and arbuscular mycorrhizal colonization (AMC) which was assessed in one experiment. Fertilization increased dry matter (DM) and accumulated P. Broadcasted P produced lower P accumulation than deep-banded P only at tillering. Phosphorus rate decreased PRE, and placement method did not affect it. Grain yield response was increased by P rate (857 and 1805 kg ha−1 for 25 and 50 kg P ha−1, resp.) and was not affected by placement method (4774 and 5333 kg ha−1 for broadcasted and deep-banded, resp.). Deep-banded P depressed root AMC compared with broadcast applications. Highest AMC in P broadcasted treatments could help to explain the lack of differences between placement methods. These results indicate that Mollisol have low P retention capacity. Therefore, broadcasted P could be used as an alternative of fertilizer management for NT wheat.
Palabras clave:
Wheat
,
Grain Yeld
,
Phosprus Placement
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Articulos(INBIOTEC)
Articulos de INSTITUTO DE INV. EN BIODIVERSIDAD Y BIOTECNOLOGIA
Articulos de INSTITUTO DE INV. EN BIODIVERSIDAD Y BIOTECNOLOGIA
Citación
Barbieri, Pablo Andres; Sainz Rozas, Hernan Rene; Covacevich, Fernanda; Echeverría, Hernán Eduardo; Phosphorus placement effects on phosphorous recovery efficiency and grain yield of wheat under no-tillage in the Humid Pampas of Argentina; Hindawi Publishing Corporation; International Journal of Agronomy; 2014; 11-2014; 1-12; 507105
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