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 | Acesso ao texto completo restrito à biblioteca da Embrapa Arroz e Feijão. Para informações adicionais entre em contato com cnpaf.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Arroz e Feijão; Embrapa Pesca e Aquicultura. |
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Data corrente: |
15/03/2013 |
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Data da última atualização: |
15/03/2013 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
BORGHI, E.; CRUSCIOL, C. A. C.; NASCENTE, A. S.; MATEUS, G. P.; MARTINS, P. O.; COSTA, C. |
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Afiliação: |
EMERSON BORGHI, CNPASA; CARLOS ALEXANDRE COSTA CRUSCIOL, UNESP, Botucatu-SP; ADRIANO STEPHAN NASCENTE, CNPAF; GUSTAVO PAVAN MATEUS, APTA; PRISCILA OLIVEIRA MARTINS, UNESP, Botucatu-SP; CINIRO COSTA, UNESP, Botucatu-SP. |
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Título: |
Effects of row spacing and intercrop on maize grain yield and forage production of palisade grass. |
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Ano de publicação: |
2012 |
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Fonte/Imprenta: |
Crop & Pasture Science, Victoria, v. 63, n. 12, p. 1106-1113, 2012. |
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DOI: |
dx.doi.org/10.1071/CP12344 |
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Idioma: |
Inglês |
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Conteúdo: |
Intercropping of maize (Zea mays L.) with perennial forage, such as palisade grass [Brachiaria brizantha (Hochst. ex A. Rich) Stapf], provides large amounts of biomass that can be used as straw for no-tillage systems or as pasture for animal grazing. In addition, the use of narrow row spacing may increase maize grain yield. However, it is important to evaluate intercrops at different row spacing to avoid reductions in both maize and forage biomass production. The objectives of this field experiment during two growing seasons in Brazil were as follows: (1) to evaluate the influence of intercropping and row spacing on maize yield, leaf nutrient concentration, and plant population and development; and (2) to assess the influence of row spacing on palisade grass herbage mass and leaf nutrient concentration. The experimental design was a randomised complete block design in a 22 factorial scheme, with eight replications. The treatments comprised two row spacing distances (0.45 and 0.90 m) and two crop management types (maize monoculture and intercropped with palisade grass). The nutrient concentrations in the leaves of the maize plants were in the ideal range for this crop under all conditions studied. Plant height, height of first ear, and number of grains per ear were higher with the narrow row spacing. Maize grain yield was similar in both crop management types (10 301 and 9745 kg ha?1 for monoculture maize and intercropped, respectively). However, maize grain yield at the narrow row spacing was higher than that obtained with the wide row spacing
(9948 v. 8905 kg ha?1). In contrast, row spacing did not affect the nutrient level or quality (crude protein concentration) of palisade grass. The amount of dry matter (DM) from palisade grass was lower at maize harvesting (4.7Mgha?1) and 90 days after harvesting (6.9Mgha?1) under narrow spacing. However, the amount of DM was similar at both row spacings at 120 days after maize harvesting (9.2Mgha?1).Whenthere is no problem with water and nutrient availability, the use of maize and palisade grass intercropping under both row spacing conditions (0.45 and 0.90 m) provides an option for the production of forage DM without reducing the maize grain yield. MenosIntercropping of maize (Zea mays L.) with perennial forage, such as palisade grass [Brachiaria brizantha (Hochst. ex A. Rich) Stapf], provides large amounts of biomass that can be used as straw for no-tillage systems or as pasture for animal grazing. In addition, the use of narrow row spacing may increase maize grain yield. However, it is important to evaluate intercrops at different row spacing to avoid reductions in both maize and forage biomass production. The objectives of this field experiment during two growing seasons in Brazil were as follows: (1) to evaluate the influence of intercropping and row spacing on maize yield, leaf nutrient concentration, and plant population and development; and (2) to assess the influence of row spacing on palisade grass herbage mass and leaf nutrient concentration. The experimental design was a randomised complete block design in a 22 factorial scheme, with eight replications. The treatments comprised two row spacing distances (0.45 and 0.90 m) and two crop management types (maize monoculture and intercropped with palisade grass). The nutrient concentrations in the leaves of the maize plants were in the ideal range for this crop under all conditions studied. Plant height, height of first ear, and number of grains per ear were higher with the narrow row spacing. Maize grain yield was similar in both crop management types (10 301 and 9745 kg ha?1 for monoculture maize and intercropped, respectively). However, maize grain yield at the narr... Mostrar Tudo |
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Thesagro: |
Agricultura sustentável; Brachiaria brizantha; Cultivo intercalado; Espaçamento; Milho; Planta forrageira; Zea Mays. |
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Thesaurus Nal: |
Corn; Forage production; Row spacing; Sustainable agriculture; Urochloa brizantha. |
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Categoria do assunto: |
A Sistemas de Cultivo |
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Marc: |
LEADER 03198naa a2200337 a 4500
001 1953141
005 2013-03-15
008 2012 bl uuuu u00u1 u #d
024 7 $adx.doi.org/10.1071/CP12344$2DOI
100 1 $aBORGHI, E.
245 $aEffects of row spacing and intercrop on maize grain yield and forage production of palisade grass.
260 $c2012
520 $aIntercropping of maize (Zea mays L.) with perennial forage, such as palisade grass [Brachiaria brizantha (Hochst. ex A. Rich) Stapf], provides large amounts of biomass that can be used as straw for no-tillage systems or as pasture for animal grazing. In addition, the use of narrow row spacing may increase maize grain yield. However, it is important to evaluate intercrops at different row spacing to avoid reductions in both maize and forage biomass production. The objectives of this field experiment during two growing seasons in Brazil were as follows: (1) to evaluate the influence of intercropping and row spacing on maize yield, leaf nutrient concentration, and plant population and development; and (2) to assess the influence of row spacing on palisade grass herbage mass and leaf nutrient concentration. The experimental design was a randomised complete block design in a 22 factorial scheme, with eight replications. The treatments comprised two row spacing distances (0.45 and 0.90 m) and two crop management types (maize monoculture and intercropped with palisade grass). The nutrient concentrations in the leaves of the maize plants were in the ideal range for this crop under all conditions studied. Plant height, height of first ear, and number of grains per ear were higher with the narrow row spacing. Maize grain yield was similar in both crop management types (10 301 and 9745 kg ha?1 for monoculture maize and intercropped, respectively). However, maize grain yield at the narrow row spacing was higher than that obtained with the wide row spacing (9948 v. 8905 kg ha?1). In contrast, row spacing did not affect the nutrient level or quality (crude protein concentration) of palisade grass. The amount of dry matter (DM) from palisade grass was lower at maize harvesting (4.7Mgha?1) and 90 days after harvesting (6.9Mgha?1) under narrow spacing. However, the amount of DM was similar at both row spacings at 120 days after maize harvesting (9.2Mgha?1).Whenthere is no problem with water and nutrient availability, the use of maize and palisade grass intercropping under both row spacing conditions (0.45 and 0.90 m) provides an option for the production of forage DM without reducing the maize grain yield.
650 $aCorn
650 $aForage production
650 $aRow spacing
650 $aSustainable agriculture
650 $aUrochloa brizantha
650 $aAgricultura sustentável
650 $aBrachiaria brizantha
650 $aCultivo intercalado
650 $aEspaçamento
650 $aMilho
650 $aPlanta forrageira
650 $aZea Mays
700 1 $aCRUSCIOL, C. A. C.
700 1 $aNASCENTE, A. S.
700 1 $aMATEUS, G. P.
700 1 $aMARTINS, P. O.
700 1 $aCOSTA, C.
773 $tCrop & Pasture Science, Victoria$gv. 63, n. 12, p. 1106-1113, 2012.
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Registro original: |
Embrapa Pesca e Aquicultura (CNPASA) |
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Biblioteca |
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Biblioteca(s): |
Embrapa Instrumentação. |
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Data corrente: |
23/11/2023 |
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Data da última atualização: |
15/01/2024 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 1 |
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Autoria: |
MALAFATTI, J. O. D.; DOMINGUES, M. A.; MEIRELLES, M. R.; PERES, L. G. S.; BRESOLIN, J. D.; PARIS, E. C. |
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Afiliação: |
Department of Chemistry, Federal University of Sao Carlos; Department of Materials Engineering, Federal University of Sao Carlos; Institute of Chemistry, University of Sao Paulo; Department of Materials Engineering, Federal University of Sao Carlos; JOANA DIAS BRESOLIN, CNPDIA; ELAINE CRISTINA PARIS, CNPDIA. |
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Título: |
Antifungal and ultraviolet-visible barrier properties in starch films reinforced with CuO nanoparticles. |
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Ano de publicação: |
2023 |
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Fonte/Imprenta: |
Journal of Applied Polymer Science, v.140, e54290, 2023. |
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Páginas: |
14 p. |
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DOI: |
.https://doi.org/10.1002/app.54290 |
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Idioma: |
Inglês |
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Conteúdo: |
Abstract Starch materials are subject to loss of initial characteristics due to the retrogradation degenerative effect, high hygroscopicity, and favoring the growth of the microorganisms, which reduces the shelf life of packaging. In this sense, the insertion of nanoparticulated CuO was evaluated for the best performance. CuO is a semiconductor that can improve optical, mechanical, and antimicrobial properties, enabling excellent promotion of starch films. The hot injection precipitation method was used to obtain CuO nanoparticles in the nanometric scale rapidly. The films were carried out from the starch homogenization in water and urea under temperature, followed by thermopressing at 120C. As a result, the 1% CuO (w w1 ) increased tensile strength from 0.87 ± 0.40 to 1.92 ± 0.09 MPa. Furthermore, the films containing nanoparticles showed a barrier property against radiation in the ultraviolet?visible spectrum, not observed for the micrometric scale. Such results were attributed to the superior opacity of the films generated by nanometric reinforcement. Concerning antimicrobial activity, the films containing CuO showed a fungistatic effect (33%) for the Alternaria alternata fungus, a microorganism very susceptible to carbohydrate-rich sources. Thus, the CuO-reinforced starch films improved physicochemical and biological properties, making them promissory candidates for commercial application. |
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Palavras-Chave: |
Antifungal; Copper oxide; Fertilizer; Optical. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1158668/1/P-Antifungal-and-ultravioletvisible-barrier-properties-in.pdf
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Marc: |
LEADER 02175naa a2200253 a 4500
001 2158668
005 2024-01-15
008 2023 bl uuuu u00u1 u #d
024 7 $a.https://doi.org/10.1002/app.54290$2DOI
100 1 $aMALAFATTI, J. O. D.
245 $aAntifungal and ultraviolet-visible barrier properties in starch films reinforced with CuO nanoparticles.$h[electronic resource]
260 $c2023
300 $a14 p.
520 $aAbstract Starch materials are subject to loss of initial characteristics due to the retrogradation degenerative effect, high hygroscopicity, and favoring the growth of the microorganisms, which reduces the shelf life of packaging. In this sense, the insertion of nanoparticulated CuO was evaluated for the best performance. CuO is a semiconductor that can improve optical, mechanical, and antimicrobial properties, enabling excellent promotion of starch films. The hot injection precipitation method was used to obtain CuO nanoparticles in the nanometric scale rapidly. The films were carried out from the starch homogenization in water and urea under temperature, followed by thermopressing at 120C. As a result, the 1% CuO (w w1 ) increased tensile strength from 0.87 ± 0.40 to 1.92 ± 0.09 MPa. Furthermore, the films containing nanoparticles showed a barrier property against radiation in the ultraviolet?visible spectrum, not observed for the micrometric scale. Such results were attributed to the superior opacity of the films generated by nanometric reinforcement. Concerning antimicrobial activity, the films containing CuO showed a fungistatic effect (33%) for the Alternaria alternata fungus, a microorganism very susceptible to carbohydrate-rich sources. Thus, the CuO-reinforced starch films improved physicochemical and biological properties, making them promissory candidates for commercial application.
653 $aAntifungal
653 $aCopper oxide
653 $aFertilizer
653 $aOptical
700 1 $aDOMINGUES, M. A.
700 1 $aMEIRELLES, M. R.
700 1 $aPERES, L. G. S.
700 1 $aBRESOLIN, J. D.
700 1 $aPARIS, E. C.
773 $tJournal of Applied Polymer Science$gv.140, e54290, 2023.
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