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Registro Completo |
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Biblioteca(s): |
Embrapa Cerrados. |
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Data corrente: |
08/06/1992 |
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Data da última atualização: |
08/06/1992 |
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Autoria: |
PAULINO, V. T. |
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Título: |
Importancia da nutricao mineral na eficiencia de fixacao simbiotica do nitrogenio por leguminosas forrageiras em solo de cerrado do estado de Sao Paulo. |
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Ano de publicação: |
1984 |
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Fonte/Imprenta: |
Zootecnia, v.22, n.3, p.195-235, 1984. |
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Idioma: |
Português |
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Conteúdo: |
Trata de uma compilacao bibliografica relativa aos principais aspectos da fixacao biologica do nitrogenio por leguminosas forrageiras em solos de cerrado do Estado de So Paulo. So relatadas caracteristicas quimicas desses solos, metodos estimativos da fixacao de nitrogenio, efitos de acidez, calagem, nitrogenio, fosforo, potassio, enxofre, molibdenio, boro, cobre, zinco, manganes, ferro e cobalto em centrosema (Centrosema pubescens Benth.), soja-perene (Glycine wightii Verdc.), siratro (Macroptilium antropurpureum D.C.), estilosantes (Stylosanthes guyanensis S. W.) e galaxia (Galactia striata (Jacq.) Urb.). |
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Palavras-Chave: |
Brasil; Fixacao Biologica; Micronutriente; Planta Leguminosa Forrageira; Sao Paulo. |
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Thesagro: |
Acidez; Boro; Calagem; Centrosema; Centrosema Pubescens; Cerrado; Cobalto; Cobre; Enxofre; Ferro; Fósforo; Galáctia Striata; Manganês; Molibdênio; Nitrogênio; Potássio; Siratro; Soja; Solo; Stylosanthes Guianensis; Zinco. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01731naa a2200433 a 4500
001 1547341
005 1992-06-08
008 1984 bl uuuu u00u1 u #d
100 1 $aPAULINO, V. T.
245 $aImportancia da nutricao mineral na eficiencia de fixacao simbiotica do nitrogenio por leguminosas forrageiras em solo de cerrado do estado de Sao Paulo.
260 $c1984
520 $aTrata de uma compilacao bibliografica relativa aos principais aspectos da fixacao biologica do nitrogenio por leguminosas forrageiras em solos de cerrado do Estado de So Paulo. So relatadas caracteristicas quimicas desses solos, metodos estimativos da fixacao de nitrogenio, efitos de acidez, calagem, nitrogenio, fosforo, potassio, enxofre, molibdenio, boro, cobre, zinco, manganes, ferro e cobalto em centrosema (Centrosema pubescens Benth.), soja-perene (Glycine wightii Verdc.), siratro (Macroptilium antropurpureum D.C.), estilosantes (Stylosanthes guyanensis S. W.) e galaxia (Galactia striata (Jacq.) Urb.).
650 $aAcidez
650 $aBoro
650 $aCalagem
650 $aCentrosema
650 $aCentrosema Pubescens
650 $aCerrado
650 $aCobalto
650 $aCobre
650 $aEnxofre
650 $aFerro
650 $aFósforo
650 $aGaláctia Striata
650 $aManganês
650 $aMolibdênio
650 $aNitrogênio
650 $aPotássio
650 $aSiratro
650 $aSoja
650 $aSolo
650 $aStylosanthes Guianensis
650 $aZinco
653 $aBrasil
653 $aFixacao Biologica
653 $aMicronutriente
653 $aPlanta Leguminosa Forrageira
653 $aSao Paulo
773 $tZootecnia$gv.22, n.3, p.195-235, 1984.
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Registro original: |
Embrapa Cerrados (CPAC) |
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Registro |
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Registro Completo
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Biblioteca(s): |
Embrapa Territorial. |
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Data corrente: |
24/02/2011 |
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Data da última atualização: |
03/05/2019 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
B - 1 |
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Autoria: |
GUEDES FILHO, O.; VIEIRA, S. R.; CHIBA, M. K.; GREGO, C. R. |
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Afiliação: |
OSVALDO GUEDES FILHO, ESALQ/USP; SIDNEY ROSA VIEIRA, IAC; MARCIO KOITI CHIBA, IAC; CELIA REGINA GREGO, CNPM. |
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Título: |
Geostatistical analysis of crop yield maps in a long term no tillage system. |
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Ano de publicação: |
2010 |
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Fonte/Imprenta: |
Bragantia, Campinas, v. 69, suplemento, p. 9-18, 2010. |
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Idioma: |
Inglês |
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Conteúdo: |
It is known, for a long time, that crop yields are not uniform at the field. In some places, it is possible to distinguish sites with both low and high yields even within the same area. This work aimed to evaluate the spatial and temporal variability of some crop yields and to identify potential zones for site specific management in an area under no-tillage system for 23 years. Data were analyzed from a 3.42 ha long term experimental area at the Centro Experimental Central of the Instituto Agronômico, located in Campinas, São Paulo State, Brazil. The crop yield data evaluated included the following crops: soybean, maize, lablab and triticale, and all of them were cultivated since 1985 and sampled at a regular grid of 302 points. Data were normalized and analyzed using descriptive statistics and geostatistical tools in order to demonstrate and describe the structure of the spatial variability. All crop yields showed high variability. All of them also showed spatial dependence and were fitted to the spherical model, except for the yield of the maize in 1999 productivity which was fitted to the exponential model. The north part of the area presented repeated high values of productivity in some years. There was a positive cross correlation amongst the productivity values, especially for the maize crops. |
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Palavras-Chave: |
Cross semivariogram; Management zones; Spatial variability. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/28511/1/03ap.pdf
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Marc: |
LEADER 01872naa a2200193 a 4500
001 1878781
005 2019-05-03
008 2010 bl uuuu u00u1 u #d
100 1 $aGUEDES FILHO, O.
245 $aGeostatistical analysis of crop yield maps in a long term no tillage system.
260 $c2010
520 $aIt is known, for a long time, that crop yields are not uniform at the field. In some places, it is possible to distinguish sites with both low and high yields even within the same area. This work aimed to evaluate the spatial and temporal variability of some crop yields and to identify potential zones for site specific management in an area under no-tillage system for 23 years. Data were analyzed from a 3.42 ha long term experimental area at the Centro Experimental Central of the Instituto Agronômico, located in Campinas, São Paulo State, Brazil. The crop yield data evaluated included the following crops: soybean, maize, lablab and triticale, and all of them were cultivated since 1985 and sampled at a regular grid of 302 points. Data were normalized and analyzed using descriptive statistics and geostatistical tools in order to demonstrate and describe the structure of the spatial variability. All crop yields showed high variability. All of them also showed spatial dependence and were fitted to the spherical model, except for the yield of the maize in 1999 productivity which was fitted to the exponential model. The north part of the area presented repeated high values of productivity in some years. There was a positive cross correlation amongst the productivity values, especially for the maize crops.
653 $aCross semivariogram
653 $aManagement zones
653 $aSpatial variability
700 1 $aVIEIRA, S. R.
700 1 $aCHIBA, M. K.
700 1 $aGREGO, C. R.
773 $tBragantia, Campinas$gv. 69, suplemento, p. 9-18, 2010.
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