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Acceso al texto completo restringido a Biblioteca INIA Las Brujas. Por información adicional contacte bibliolb@inia.org.uy.
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Biblioteca (s) :  INIA Las Brujas.
Fecha :  05/02/2020
Actualizado :  05/02/2020
Tipo de producción científica :  Artículos en Revistas Indexadas Internacionales
Autor :  SAWCHIK, J.; MALLARINO, A.P.
Afiliación :  JORGE SAWCHIK PINTOS, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; ANTONIO P. MALLARINO, Dep. of Agron, Iowa State Univ., Ames, IA, United States.
Título :  Variability of soil properties, early phosphorus and potassium uptake, and incidence of pests and weeds in relation to soybean grain yield.
Fecha de publicación :  2008
Fuente / Imprenta :  Agronomy Journal, September 2008, Volume 100, Issue 5, Pages 1450-1462. Doi: https://doi.org/10.2134/agronj2007.0303
ISSN :  0002-1962
DOI :  10.2134/agronj2007.0303
Idioma :  Inglés
Notas :  Article history: Received 8 September 2007 / Published September 2008. Corresponding author: Antonio P. Mallarino - apmallar@iastate.edu
Contenido :  ABSTRACT. Successful crop management requires understanding relationships between site characteristics and crop yield. We studied intercorrelations among soil and crop properties using factor analysis (FA) and principal components analysis (PCA), and their relationships with soybean [Glycine max (L.) Merr.] within-field yield variability. Site variables (22) measured on 0.2-ha cells of 12- to 20-ha areas of five Iowa fields were: elevation; soil texture; extractable nutrients; incidence of soybean cyst nematode (Heterodera glycines) (SCN), diseases, and weeds; soybean dry weight (DW), height, and P and K uptake at V5; plant height at R5; and grain yield. Agronomic interpretations of interrelationships among site variables were more straightforward for FA than for PCA. The factors conditions for early growth and nutrient uptake and intrinsic soil properties were present in all fields, plant P and K availability was present in three fields, and the factor soybean pests, weeds or plant growth was present in the other fields. Factor analysis and PCA accounted for 62 to 64% of the yield variability in the field with the largest yield CV (30%) and 5 to 35% in the other fields (CV 2.8 to 5.9%). Two factors related significantly to yield in two fields (plant P and K availability and intrinsic soil properties) while others were specific to one field. Factor analysis identified groups of interrelated site variables, showed how they accounted for yield variability, and showed that sing... Presentar Todo
Palabras claves :  Crop Management; Crops; Nutrients; Phosphorus.
Asunto categoría :  F01 Cultivo
Marc :  Presentar Marc Completo
Registro original :  INIA Las Brujas (LB)
Biblioteca Identificación Origen Tipo / Formato Clasificación Cutter Registro Volumen Estado
LB102170 - 1PXIAP - DDPP/AGRONOMY JOURNAL/2008

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1.Imagen marcada / sin marcar SAWCHIK, J.; MALLARINO, A.P. Evaluation of zone soil sampling approaches for phosphorus and potassium based on corn and soybean response to fertilization. Agronomy Journal, November 2007, Volume 99, Issue 6, Pages 1564-1578. Doi: 10.2134/agronj2006.0151 Article history: Published November, 2007.
Tipo: Artículos en Revistas Indexadas InternacionalesCirculación / Nivel : A - 2
Biblioteca(s): INIA Las Brujas.
Ver detalles del registro Acceso restrito al objeto digitalImprime registro en el formato completo
2.Imagen marcada / sin marcar SAWCHIK, J.; MALLARINO, A.P. Variability of soil properties, early phosphorus and potassium uptake, and incidence of pests and weeds in relation to soybean grain yield. Agronomy Journal, September 2008, Volume 100, Issue 5, Pages 1450-1462. Doi: https://doi.org/10.2134/agronj2007.0303 Article history: Received 8 September 2007 / Published September 2008. Corresponding author: Antonio P. Mallarino - apmallar@iastate.edu
Tipo: Artículos en Revistas Indexadas InternacionalesCirculación / Nivel : A - 2
Biblioteca(s): INIA Las Brujas.
Ver detalles del registro Acceso restrito al objeto digitalImprime registro en el formato completo
Registros recuperados : 2
Primeira ... 1 ... Última
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