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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 describing within-field variation of soil tests and yield response to fertilization. Zone approaches may be more effective in fields with shorter fertilization histories or soils with more contrast in properties.
© American Society of Agronomy. MenosABSTRACT.
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 : |
LEADER 02450naa a2200205 a 4500 001 1060715 005 2020-01-29 008 2007 bl uuuu u00u1 u #d 022 $a0002-1962 024 7 $a10.2134/agronj2006.0151$2DOI 100 1 $aSAWCHIK, J. 245 $aEvaluation of zone soil sampling approaches for phosphorus and potassium based on corn and soybean response to fertilization.$h[electronic resource] 260 $c2007 500 $aArticle history: Published November, 2007. 520 $aABSTRACT. 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 describing within-field variation of soil tests and yield response to fertilization. Zone approaches may be more effective in fields with shorter fertilization histories or soils with more contrast in properties. © American Society of Agronomy. 650 $aGLYCINE MAX 650 $aZEA MAYS 653 $aFertilizers 700 1 $aMALLARINO, A.P. 773 $tAgronomy Journal, November 2007, Volume 99, Issue 6, Pages 1564-1578. Doi: 10.2134/agronj2006.0151
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INIA Las Brujas (LB) |
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Registro completo
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Biblioteca (s) : |
INIA Treinta y Tres. |
Fecha actual : |
21/02/2014 |
Actualizado : |
31/05/2018 |
Tipo de producción científica : |
Documentos |
Autor : |
MOLINA, F.; BLANCO, P.H.; SILVERA, W. |
Afiliación : |
FEDERICO MOLINA CASELLA, Instituto Nacional de Investigación Agropecuaria (INIA), Uruguay; PEDRO HORACIO BLANCO BARRAL, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; WALTER HUGO SILVERA MOTA, Instituto Nacional de Investigación Agropecuaria (INIA), Uruguay. |
Título : |
Evaluación de cultivares Clearfield en ensayos en fajas. |
Fecha de publicación : |
2012 |
Fuente / Imprenta : |
In: PROGRAMA NACIONAL PRODUCCIÓN DE ARROZ; JORNADA ANUAL ARROZ, 2012, INIA TREINTA Y TRES, UY. Arroz: resultados experimentales 2011-2012. Treinta y Tres: INIA, 2012. |
Páginas : |
Cap.6 p.32-34 |
Serie : |
(INIA Serie Actividades de Difusión; 686) |
ISSN : |
1688-9258 |
Idioma : |
Español |
Thesagro : |
ARROZ; FITOMEJORAMIENTO; URUGUAY. |
Asunto categoría : |
F30 Genética vegetal y fitomejoramiento |
URL : |
http://www.ainfo.inia.uy/digital/bitstream/item/8062/1/Ad-686-c6-p.32-34.pdf
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Marc : |
LEADER 00679naa a2200205 a 4500 001 1030517 005 2018-05-31 008 2012 bl uuuu u00u1 u #d 022 $a1688-9258 100 1 $aMOLINA, F. 245 $aEvaluación de cultivares Clearfield en ensayos en fajas. 260 $c2012 300 $aCap.6 p.32-34 490 $a(INIA Serie Actividades de Difusión; 686) 650 $aARROZ 650 $aFITOMEJORAMIENTO 650 $aURUGUAY 700 1 $aBLANCO, P.H. 700 1 $aSILVERA, W. 773 $tIn: PROGRAMA NACIONAL PRODUCCIÓN DE ARROZ; JORNADA ANUAL ARROZ, 2012, INIA TREINTA Y TRES, UY. Arroz: resultados experimentales 2011-2012. Treinta y Tres: INIA, 2012.
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