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Registro Completo |
Biblioteca(s): |
Embrapa Pecuária Sudeste. |
Data corrente: |
30/07/2019 |
Data da última atualização: |
13/03/2023 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
BERNARDI, A. C. de C.; BETTIOL, G. M.; FERREIRA, R. de P.; SANTOS, K. E. L.; RABELLO, L. M.; INAMASU, R. Y. |
Afiliação: |
ALBERTO CARLOS DE CAMPOS BERNARDI, CPPSE; GIOVANA MARANHAO BETTIOL, CPAC; REINALDO DE PAULA FERREIRA, CPPSE; Karoline Eduarda Lima Santos, USP; LADISLAU MARCELINO RABELLO, CNPDIA; RICARDO YASSUSHI INAMASU, CNPDIA. |
Título: |
Spatial variability of soil properties and yield of a grazed alfalfa pasture in Brazil. |
Ano de publicação: |
2019 |
Fonte/Imprenta: |
International Fertilizer Correspondent (e-ifc), n. 56, p. 31-40, mar. 2019. |
Idioma: |
Inglês |
Conteúdo: |
Knowledge of the spatial variability of soil properties and of forage yield is needed for informed use of soil inputs such as variable rate technology (VRT) for lime and fertilizers. The objective of this research was to map and evaluate the spatial variability of soil properties, yield, lime and fertilizer needs and economic return of an alfalfa pasture. The study was conducted in a 5.3 ha irrigated alfalfa pasture in Sao Carlos, SP, Brazil that was directly grazed and intensively managed in a 270-paddock rotational system. Alfalfa shoot dry matter yield was evaluated before grazing. Soil samples were collected at 0-0.2 m depth, and each sample represented a group of 2 or 3 paddocks. Apparent soil electrical conductivity (ECa) was measured with a contact sensor. The cost of producing 1 ha of alfalfa was estimated from the amount of lime and fertilizer needed and was then used to estimate the total cost of production for the dairy system. |
Palavras-Chave: |
GIS; Propriedades do solo. |
Thesagro: |
Fertilidade do Solo; Medicago Sativa; Pastagem. |
Thesaurus Nal: |
Fertilizers; Forage yield; Geostatistics. |
Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/199979/1/2019-Spatial-Variability-of-Soil-Properties.pdf
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Marc: |
LEADER 01767naa a2200277 a 4500 001 2110960 005 2023-03-13 008 2019 bl uuuu u00u1 u #d 100 1 $aBERNARDI, A. C. de C. 245 $aSpatial variability of soil properties and yield of a grazed alfalfa pasture in Brazil.$h[electronic resource] 260 $c2019 520 $aKnowledge of the spatial variability of soil properties and of forage yield is needed for informed use of soil inputs such as variable rate technology (VRT) for lime and fertilizers. The objective of this research was to map and evaluate the spatial variability of soil properties, yield, lime and fertilizer needs and economic return of an alfalfa pasture. The study was conducted in a 5.3 ha irrigated alfalfa pasture in Sao Carlos, SP, Brazil that was directly grazed and intensively managed in a 270-paddock rotational system. Alfalfa shoot dry matter yield was evaluated before grazing. Soil samples were collected at 0-0.2 m depth, and each sample represented a group of 2 or 3 paddocks. Apparent soil electrical conductivity (ECa) was measured with a contact sensor. The cost of producing 1 ha of alfalfa was estimated from the amount of lime and fertilizer needed and was then used to estimate the total cost of production for the dairy system. 650 $aFertilizers 650 $aForage yield 650 $aGeostatistics 650 $aFertilidade do Solo 650 $aMedicago Sativa 650 $aPastagem 653 $aGIS 653 $aPropriedades do solo 700 1 $aBETTIOL, G. M. 700 1 $aFERREIRA, R. de P. 700 1 $aSANTOS, K. E. L. 700 1 $aRABELLO, L. M. 700 1 $aINAMASU, R. Y. 773 $tInternational Fertilizer Correspondent (e-ifc)$gn. 56, p. 31-40, mar. 2019.
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Registro original: |
Embrapa Pecuária Sudeste (CPPSE) |
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Registro Completo
Biblioteca(s): |
Embrapa Suínos e Aves; Embrapa Unidades Centrais. |
Data corrente: |
03/04/2017 |
Data da última atualização: |
11/05/2017 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Circulação/Nível: |
A - 2 |
Autoria: |
BERTOL, T. M.; COLDEBELLA, A.; SANTOS FILHO, J. I. dos; GUIDONI, A. L. |
Afiliação: |
TERESINHA MARISA BERTOL, CNPSA; ARLEI COLDEBELLA, CNPSA; JONAS IRINEU DOS SANTOS FILHO, CNPSA; ANTONIO LOURENÇO GUIDONI, In memorian. |
Título: |
Swine carcasses classified by degree of exudation and marbling content. |
Ano de publicação: |
2017 |
Fonte/Imprenta: |
Pesquisa Agropecuária Brasileira, Brasília, DF, v. 52, n. 2, p. 121-128, fev. 2017. |
Idioma: |
Inglês |
Conteúdo: |
The objective of this work was to develop and evaluate prediction equations, based on measurements obtained on the slaughter line, for carcass classification according to the degree of exudation and the content of marbling. A total of 747 pig carcasses originated from 27 producers were randomly selected on the slaughter line at two slaughterhouses, constituting representative samples from each one. Hot carcass weight, loin depth, back fat thickness, and pH and temperature 45 min after slaughter were used to generate the equations. The carcasses were classified as normal or exudative for drip loss of loin and ham, and as acceptable or undesirable for marbling content. For drip loss of loin and ham, respectively, the overall correct classification of the carcasses was 87.3 and 76.8%, using the discriminant functions, for both categories. For marbling, the overall correct classification was 67.2%, and only 69% of the carcasses were correctly classified as acceptable (marbling >1). The equations developed based on the measurements obtained on the slaughter line allow classifying swine carcasses with high accuracy, according to the degree of exudation, but not with the content of marbling. |
Palavras-Chave: |
Equação de predição; Lombo; Perda por gotejamento; Pernil; Pigs; Prediction equations. |
Thesagro: |
Porco. |
Thesaurus NAL: |
Drip loss; Ham; Loins. |
Categoria do assunto: |
-- |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/159663/1/final7565.pdf
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/158544/1/Swine-carcasses-classified.pdf
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Marc: |
LEADER 01958naa a2200277 a 4500 001 2069422 005 2017-05-11 008 2017 bl uuuu u00u1 u #d 100 1 $aBERTOL, T. M. 245 $aSwine carcasses classified by degree of exudation and marbling content. 260 $c2017 520 $aThe objective of this work was to develop and evaluate prediction equations, based on measurements obtained on the slaughter line, for carcass classification according to the degree of exudation and the content of marbling. A total of 747 pig carcasses originated from 27 producers were randomly selected on the slaughter line at two slaughterhouses, constituting representative samples from each one. Hot carcass weight, loin depth, back fat thickness, and pH and temperature 45 min after slaughter were used to generate the equations. The carcasses were classified as normal or exudative for drip loss of loin and ham, and as acceptable or undesirable for marbling content. For drip loss of loin and ham, respectively, the overall correct classification of the carcasses was 87.3 and 76.8%, using the discriminant functions, for both categories. For marbling, the overall correct classification was 67.2%, and only 69% of the carcasses were correctly classified as acceptable (marbling >1). The equations developed based on the measurements obtained on the slaughter line allow classifying swine carcasses with high accuracy, according to the degree of exudation, but not with the content of marbling. 650 $aDrip loss 650 $aHam 650 $aLoins 650 $aPorco 653 $aEquação de predição 653 $aLombo 653 $aPerda por gotejamento 653 $aPernil 653 $aPigs 653 $aPrediction equations 700 1 $aCOLDEBELLA, A. 700 1 $aSANTOS FILHO, J. I. dos 700 1 $aGUIDONI, A. L. 773 $tPesquisa Agropecuária Brasileira, Brasília, DF$gv. 52, n. 2, p. 121-128, fev. 2017.
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Embrapa Suínos e Aves (CNPSA) |
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