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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 :  29/01/2020
Actualizado :  29/01/2020
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 Agronomy, Iowa State Univ., Ames, IA, United States.
Título :  Evaluation of zone soil sampling approaches for phosphorus and potassium based on corn and soybean response to fertilization.
Fecha de publicación :  2007
Fuente / Imprenta :  Agronomy Journal, November 2007, Volume 99, Issue 6, Pages 1564-1578. Doi: 10.2134/agronj2006.0151
ISSN :  0002-1962
DOI :  10.2134/agronj2006.0151
Idioma :  Inglés
Notas :  Article history: Published November, 2007.
Contenido :  ABSTRACT. Soil sampling approaches have been compared based on soil-test variation. This study evaluated sampling approaches for P and K based on yield response to fertilization. Strip trials were established on four fields for P and three fields for K managed with corn (Zea mays L.) and soybean (Glycine max L. Merr.) rotations and evaluated 3 or 4 yr (27 site-years). Treatments replicated three to four times were fertilizer and no fertilizer application. Soil test results from a dense grid-point sampling (DG) approach (0.08 to 0.27 ha) were used to simulate six approaches: (i) 1.0-ha grid cells (GC), and zones delineated based on (ii) soil series from digitized survey maps (SMZ); (iii) elevation (EZ); (iv) apparent soil electrical conductivity, ECa (ECZ); (v) EZ and ECZ (EECZ); and (vi) EZ, ECZ, and slope (EECSZ). Grain yield monitors, global positioning systems (GPS), and geographical information systems (GIS) were used to describe crop responses. Estimates of soil-test variation were largest for DG, intermediate for GC, and less for other approaches. Crops responded (P ≤ 0.05) to fertilization in 20 site-years. Sampling approaches DG, GC, EZ, EECZ or EECSZ, ECZ, and SMZ identified a differential within-field yield response in 16, 8, 5, 3, 2, and 2 site-years, respectively. Differential yield responses seldom were explained by zone-mean soil-test values. Zone approaches often identified areas with different yield levels but were less effective than DG or GC at descri... Presentar Todo
Palabras claves :  Fertilizers.
Thesagro :  GLYCINE MAX; ZEA MAYS.
Asunto categoría :  F01 Cultivo
Marc :  Presentar Marc Completo
Registro original :  INIA Las Brujas (LB)
Biblioteca Identificación Origen Tipo / Formato Clasificación Cutter Registro Volumen Estado
LB102129 - 1PXIAP - DDPP/AGRONOMY JOURNAL/2007

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1.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
2.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
Registros recuperados : 2
Primeira ... 1 ... Última
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