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Biblioteca (s) : |
INIA Las Brujas. |
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Fecha : |
29/01/2020 |
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Actualizado : |
29/01/2020 |
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Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
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Autor : |
SAWCHIK, J.; MALLARINO, A.P. |
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Afiliación : |
JORGE SAWCHIK PINTOS, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; ANTONIO P. MALLARINO, Dep. of Agronomy, Iowa State Univ., Ames, IA, United States. |
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Título : |
Evaluation of zone soil sampling approaches for phosphorus and potassium based on corn and soybean response to fertilization. |
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Fecha de publicación : |
2007 |
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Fuente / Imprenta : |
Agronomy Journal, November 2007, Volume 99, Issue 6, Pages 1564-1578. Doi: 10.2134/agronj2006.0151 |
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ISSN : |
0002-1962 |
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DOI : |
10.2134/agronj2006.0151 |
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Idioma : |
Inglés |
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Notas : |
Article history: Published November, 2007. |
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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 |
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Palabras claves : |
Fertilizers. |
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Thesagro : |
GLYCINE MAX; ZEA MAYS. |
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Asunto categoría : |
F01 Cultivo |
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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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Registro original : |
INIA Las Brujas (LB) |
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Registro completo
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Biblioteca (s) : |
INIA Tacuarembó. |
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Fecha actual : |
22/12/2020 |
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Actualizado : |
22/12/2020 |
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Tipo de producción científica : |
Capítulo en Libro Técnico-Científico |
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Autor : |
OLMOS, F.; SOSA, M. |
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Afiliación : |
FERNANDO ELCEAR OLMOS LOPEZ, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; MARTIN OSORIO SOSA PINTADO, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay. |
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Título : |
Efecto de la fertilización N-P en la productividad de Mnesithea Selloana. |
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Fecha de publicación : |
2020 |
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Fuente / Imprenta : |
In: Olmos, F. Ecofisiología de especies forrajeras del campo natural. Montevideo (UY): INIA, 2020. |
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Páginas : |
p. 24-63 |
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Serie : |
(INIA Serie Técnica; 256). |
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ISBN : |
e-ISBN: 978-9974-38-449-1 |
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ISSN : |
1688-9266 |
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DOI : |
10.35676/INIA/ST.256 |
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Idioma : |
Español |
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Contenido : |
Coelorachis selloana que anteriormente fuera Rottboellia selloana y que recientemente ha sido denominada Mnesithea selloana, es una especie ampliamente presente en los campos naturales de la región noreste de Uruguay y ha sido caracterizada como una especie perenne de ciclo de crecimiento estival, con una productividad media y una apetecibilidad prolongada; siendo desde el punto de vista del crecimiento vegetativo de tipo cespitoso. Como tipo productivo, Rosengurtt (1979) la clasifica como una especie tierna. |
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Palabras claves : |
CAMPO NATURAL; PASTURA. |
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Asunto categoría : |
A50 Investigación agraria |
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URL : |
http://www.ainfo.inia.uy/digital/bitstream/item/14910/1/st-256-2020p24-63.pdf
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Marc : |
LEADER 01124naa a2200205 a 4500
001 1061632
005 2020-12-22
008 2020 bl uuuu u00u1 u #d
022 $a1688-9266
024 7 $a10.35676/INIA/ST.256$2DOI
100 1 $aOLMOS, F.
245 $aEfecto de la fertilización N-P en la productividad de Mnesithea Selloana.
260 $c2020
300 $ap. 24-63
490 $a(INIA Serie Técnica; 256).
520 $aCoelorachis selloana que anteriormente fuera Rottboellia selloana y que recientemente ha sido denominada Mnesithea selloana, es una especie ampliamente presente en los campos naturales de la región noreste de Uruguay y ha sido caracterizada como una especie perenne de ciclo de crecimiento estival, con una productividad media y una apetecibilidad prolongada; siendo desde el punto de vista del crecimiento vegetativo de tipo cespitoso. Como tipo productivo, Rosengurtt (1979) la clasifica como una especie tierna.
653 $aCAMPO NATURAL
653 $aPASTURA
700 1 $aSOSA, M.
773 $tIn: Olmos, F. Ecofisiología de especies forrajeras del campo natural. Montevideo (UY): INIA, 2020.
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