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Registro Completo |
Biblioteca(s): |
Embrapa Territorial. |
Data corrente: |
22/07/2016 |
Data da última atualização: |
22/07/2016 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
CRUSCIOL, C. A. C.; MARQUES, R. A.; CARMEIS FILHO, A. C. A.; SORATTO, R. P.; COSTA, C. H. M.; FERRARI NETO, F.; CASTRO, G. S. A.; PARIZ, C. M.; CASTILHOS, A. M DE. |
Afiliação: |
CARLOS A. C. CRUSCIOL, UNESP; RUBIA R. MARQUES, UNESP; ANTÔNIO C. A. CARMEIS FILHO, UNESP; ROGÉRIO P. SORATTO, UNESP; CARLOS H. M. COSTA, UNESP; JAYME FERRARI NETO, UNESP; GUSTAVO SPADOTTI AMARAL CASTRO, CNPM; CRISTIANO M. PARIZ, UNESP; ANDRÉ M. DE CASTILHOS, UNESP. |
Título: |
Annual crop rotation of tropical pastures with no-till soil as affectedby lime surface application. |
Ano de publicação: |
2016 |
Fonte/Imprenta: |
European Journal of Agronomy, v. 80, p. 88?104, oct. 2016. |
ISBN: |
1161-0301 |
DOI: |
http://dx.doi.org/10.1016/j.eja.2016.07.002 |
Idioma: |
Inglês |
Conteúdo: |
Soil acidity and low natural fertility are the main limiting factors for grain production in tropical regionssuch as the Brazilian Cerrado. The application of lime to the surface of no-till soil can improve plant nutrition, dry matter production, crop yields and revenue. The present study, conducted at the Lageado Experimental Farm in Botucatu, State of São Paulo, Brazil, is part of an ongoing research project initi-ated in 2002 to evaluate the long-term effects of the surface application of lime on the soil?s chemical attributes, nutrition and kernel/grain yield of peanut (Arachis hypogaea), white oat (Avena sativa L.) and maize (Zea mays L.) inter cropped with palisade grass (Urochloa brizantha cv. Marandu), as well as the forage dry matter yield of palisade grass in winter/spring, its crude protein concentration, estimated meat production, and revenue in a tropical region with a dry winter during four growing seasons. The experiment was designed in randomized blocks with four replications. The treatments consisted of four rates of lime application (0, 1000, 2000 and 4000 kg ha−1), performed in November 2004. The surface application of limestone to the studied tropical no-till soil was efficient in reducing soil acidity from the surface down to a depth of 0.60 m and resulted in greater availability of P and K at the soil surface. Ca and Mg availability in the soil also increased with the lime application rate, up to a depth of 0.60 m. Nutrient absorption was enhanced with liming, especially regarding the nutrient uptake of K, Ca and Mg by plants.Significant increases in the yield components and kernel/grain yields of peanut, white oat and maize were obtained through the surface application of limestone. The lime rates estimated to achieve the maximum grain yield, especially in white oat and maize, were very close to the rates necessary to increase the base saturation of a soil sample collected at a depth of 0?0.20 m to 70%, indicating that the surface liming of 2000 kg ha−1is effective for the studied tropical no-till soil. This lime rate also increases the forage dry matter yield, crude protein concentration and estimated meat production during winter/spring in the maize-palisade grass inter cropping, provides the highest total and mean net profit during the four growing seasons, and can improve the long-term sustainability of tropical agriculture in the Brazilian Cerrado. MenosSoil acidity and low natural fertility are the main limiting factors for grain production in tropical regionssuch as the Brazilian Cerrado. The application of lime to the surface of no-till soil can improve plant nutrition, dry matter production, crop yields and revenue. The present study, conducted at the Lageado Experimental Farm in Botucatu, State of São Paulo, Brazil, is part of an ongoing research project initi-ated in 2002 to evaluate the long-term effects of the surface application of lime on the soil?s chemical attributes, nutrition and kernel/grain yield of peanut (Arachis hypogaea), white oat (Avena sativa L.) and maize (Zea mays L.) inter cropped with palisade grass (Urochloa brizantha cv. Marandu), as well as the forage dry matter yield of palisade grass in winter/spring, its crude protein concentration, estimated meat production, and revenue in a tropical region with a dry winter during four growing seasons. The experiment was designed in randomized blocks with four replications. The treatments consisted of four rates of lime application (0, 1000, 2000 and 4000 kg ha−1), performed in November 2004. The surface application of limestone to the studied tropical no-till soil was efficient in reducing soil acidity from the surface down to a depth of 0.60 m and resulted in greater availability of P and K at the soil surface. Ca and Mg availability in the soil also increased with the lime application rate, up to a depth of 0.60 m. Nutrient absorption was enhanced... Mostrar Tudo |
Palavras-Chave: |
Net profit; Sustainability of tropical agriculture. |
Thesaurus Nal: |
Acidity; Plant nutrition; Soil management. |
Categoria do assunto: |
-- |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/145732/1/4742.pdf
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Marc: |
LEADER 03365naa a2200301 a 4500 001 2049482 005 2016-07-22 008 2016 bl uuuu u00u1 u #d 022 $a1161-0301 024 7 $ahttp://dx.doi.org/10.1016/j.eja.2016.07.002$2DOI 100 1 $aCRUSCIOL, C. A. C. 245 $aAnnual crop rotation of tropical pastures with no-till soil as affectedby lime surface application.$h[electronic resource] 260 $c2016 520 $aSoil acidity and low natural fertility are the main limiting factors for grain production in tropical regionssuch as the Brazilian Cerrado. The application of lime to the surface of no-till soil can improve plant nutrition, dry matter production, crop yields and revenue. The present study, conducted at the Lageado Experimental Farm in Botucatu, State of São Paulo, Brazil, is part of an ongoing research project initi-ated in 2002 to evaluate the long-term effects of the surface application of lime on the soil?s chemical attributes, nutrition and kernel/grain yield of peanut (Arachis hypogaea), white oat (Avena sativa L.) and maize (Zea mays L.) inter cropped with palisade grass (Urochloa brizantha cv. Marandu), as well as the forage dry matter yield of palisade grass in winter/spring, its crude protein concentration, estimated meat production, and revenue in a tropical region with a dry winter during four growing seasons. The experiment was designed in randomized blocks with four replications. The treatments consisted of four rates of lime application (0, 1000, 2000 and 4000 kg ha−1), performed in November 2004. The surface application of limestone to the studied tropical no-till soil was efficient in reducing soil acidity from the surface down to a depth of 0.60 m and resulted in greater availability of P and K at the soil surface. Ca and Mg availability in the soil also increased with the lime application rate, up to a depth of 0.60 m. Nutrient absorption was enhanced with liming, especially regarding the nutrient uptake of K, Ca and Mg by plants.Significant increases in the yield components and kernel/grain yields of peanut, white oat and maize were obtained through the surface application of limestone. The lime rates estimated to achieve the maximum grain yield, especially in white oat and maize, were very close to the rates necessary to increase the base saturation of a soil sample collected at a depth of 0?0.20 m to 70%, indicating that the surface liming of 2000 kg ha−1is effective for the studied tropical no-till soil. This lime rate also increases the forage dry matter yield, crude protein concentration and estimated meat production during winter/spring in the maize-palisade grass inter cropping, provides the highest total and mean net profit during the four growing seasons, and can improve the long-term sustainability of tropical agriculture in the Brazilian Cerrado. 650 $aAcidity 650 $aPlant nutrition 650 $aSoil management 653 $aNet profit 653 $aSustainability of tropical agriculture 700 1 $aMARQUES, R. A. 700 1 $aCARMEIS FILHO, A. C. A. 700 1 $aSORATTO, R. P. 700 1 $aCOSTA, C. H. M. 700 1 $aFERRARI NETO, F. 700 1 $aCASTRO, G. S. A. 700 1 $aPARIZ, C. M. 700 1 $aCASTILHOS, A. M DE 773 $tEuropean Journal of Agronomy$gv. 80, p. 88?104, oct. 2016.
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Registro original: |
Embrapa Territorial (CNPM) |
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Biblioteca(s): |
Embrapa Semiárido. |
Data corrente: |
08/04/2021 |
Data da última atualização: |
08/04/2021 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Circulação/Nível: |
A - 2 |
Autoria: |
MIRANDA, I. B.; SANTOS, I. E. dos A.; TURCO, S. H. N.; FREITAS, S. T. de; FAUSTINO, A. C.; LINS, A. C. de S. S. |
Afiliação: |
ISADORA B. MIRANDA; ÍTALO E. DOS A. SANTOS; SILVIA H. N. TURCO; SERGIO TONETTO DE FREITAS, CPATSA; AMÉLIA C. FAUSTINO; ANA C. DE S. S. LINS. |
Título: |
Precooling of table grapes on a commercial scale as function of packaging. |
Ano de publicação: |
2021 |
Fonte/Imprenta: |
Revista Brasileira de Engenharia Agrícola e Ambiental, v. 25, n. 8, p. 566-572, 2021. |
ISSN: |
1807-1929 |
DOI: |
http://dx.doi.org/10.1590/1807-1929/agriambi.v25n8p566-572 |
Idioma: |
Inglês |
Conteúdo: |
Although precooling by forced air is widely used to remove field heat from fresh table grapes, there is no knowledge about its use and efficiency. Factors influencing the process include temperature and relative air humidity, amount and initial temperature of the fruits, air velocity, and packaging. The objective of this study was to evaluate the cooling effect and efficiency of forced air cooling on table grapes in two types of packages. The experimental method used randomized blocks, in a 2 × 3 factorials, corresponding to two package types (polystyrene and cardboard) and three heights on the pallet - lower, middle, and upper - with four replicates. The temperature gradient in the direction of the airflow was evaluated. There was heterogeneity in cooling, both vertically and horizontally, on the pallets with a central heat zone for both the directions. None of the packages was suitable for fast cooling as both types of packages showed a cooling time of 15.5 h; moreover, relative humidity values were far below the ideal value for table grapes. |
Palavras-Chave: |
Cadeia de frio; Pré-resfriamento; Uva de mesa. |
Thesagro: |
Embalagem; Pós-Colheita; Resfriamento; Uva. |
Thesaurus NAL: |
Packing houses; Postharvest physiology; Postharvest technology; Postharvest treatment. |
Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/222406/1/Precooling-of-table-grapes-on-a-commercial-scale-2021.pdf
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Marc: |
LEADER 02092naa a2200337 a 4500 001 2131130 005 2021-04-08 008 2021 bl uuuu u00u1 u #d 022 $a1807-1929 024 7 $ahttp://dx.doi.org/10.1590/1807-1929/agriambi.v25n8p566-572$2DOI 100 1 $aMIRANDA, I. B. 245 $aPrecooling of table grapes on a commercial scale as function of packaging.$h[electronic resource] 260 $c2021 520 $aAlthough precooling by forced air is widely used to remove field heat from fresh table grapes, there is no knowledge about its use and efficiency. Factors influencing the process include temperature and relative air humidity, amount and initial temperature of the fruits, air velocity, and packaging. The objective of this study was to evaluate the cooling effect and efficiency of forced air cooling on table grapes in two types of packages. The experimental method used randomized blocks, in a 2 × 3 factorials, corresponding to two package types (polystyrene and cardboard) and three heights on the pallet - lower, middle, and upper - with four replicates. The temperature gradient in the direction of the airflow was evaluated. There was heterogeneity in cooling, both vertically and horizontally, on the pallets with a central heat zone for both the directions. None of the packages was suitable for fast cooling as both types of packages showed a cooling time of 15.5 h; moreover, relative humidity values were far below the ideal value for table grapes. 650 $aPacking houses 650 $aPostharvest physiology 650 $aPostharvest technology 650 $aPostharvest treatment 650 $aEmbalagem 650 $aPós-Colheita 650 $aResfriamento 650 $aUva 653 $aCadeia de frio 653 $aPré-resfriamento 653 $aUva de mesa 700 1 $aSANTOS, I. E. dos A. 700 1 $aTURCO, S. H. N. 700 1 $aFREITAS, S. T. de 700 1 $aFAUSTINO, A. C. 700 1 $aLINS, A. C. de S. S. 773 $tRevista Brasileira de Engenharia Agrícola e Ambiental$gv. 25, n. 8, p. 566-572, 2021.
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