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| 23. |  | SOUZA, M. S.; MAUÉS, M. M. Aspectos da biologia floral de cinco espécies madeireiras nativas da Amazônia, com ênfase na morfologia floral e relação pólen/óvulo. In: SEMINÁRIO DE INICIAÇÃO CIENTIFICA DA FCAP, 10.; SEMINÁRIO DE INICIAÇÃO CIENTIFICA DA EMBRAPA AMAZÔNIA ORIENTAL, 4., 2000, Belém, PA. Resumos. Belém, PA: FCAP, 2000. p. 255-257.| Biblioteca(s): Embrapa Amazônia Oriental. |
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| 24. | | SANTOS, T. F.; MAUES, M. M. Abelhas que polinizam Cenostigma tocantinum na cidade de Belém-PA. In: CONGRESSO BRASILEIRO DE APICULTURA, 20.; CONGRESSO BRASILEIRO DE MELIPONICULTURA, 6., 2014, Belém, PA. Sustentabilidade, tecnologia e mercados. Belém, PA: CBA, [2014]. p. 90.| Biblioteca(s): Embrapa Amazônia Oriental. |
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| 29. | | OLIVEIRA, F. C. de; MAUES, M. M. Fenologia qualitativa de floração, frutificação e mudança foliar em castanha-do-brasil (Bertholletia excelsa), Belém, (PA). In: SEMINÁRIO DE INICIAÇÃO CIENTÍFICA, 5., 1995, Belém, PA. Resumos... Belém, PA: FCAP, Unidade de Apoio à Pesquisa, 1995. p. 45, 143.| Biblioteca(s): Embrapa Amazônia Oriental. |
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| 35. | | SOUZA, M. S. de; MAUES, M. M. Morfologia floral de Dipteryx odorata (Aubl.) Willd. leguminosae - papilionoideae (Cumaru). In: CONGRESSO NACIONAL DE BOTÂNICA, 54.; REUNIÃO AMAZÔNICA DE BOTÂNICA, 3., 2003, Belém, PA. Botânica: desafios da botânica brasileira no novo milênio: inventário, sistematização, conservação e uso da diversidade vegetal: resumos. Belém, PA: Sociedade Botânica do Brasil: UFRA: Museu Paraense Emílio Goeldi: Embrapa Amazônia Oriental, 2003. 1 CD-ROM.| Biblioteca(s): Embrapa Amazônia Oriental. |
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| Registros recuperados : 218 | |
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Registro Completo
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Biblioteca(s): |
Embrapa Meio-Norte. |
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Data corrente: |
05/10/2023 |
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Data da última atualização: |
17/10/2023 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
B - 2 |
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Autoria: |
SOUSA, D. C. de; ROSA, J. D.; MEDEIROS, J. C.; BOECHAT, C. L.; NÓBREGA, R. S. A.; SOUZA, H. A. de; SAGRILO, E. |
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Afiliação: |
DAIANE CONCEIÇÃO DE SOUSA, UNIVERSIDADE FEDERAL DO SUL DA BAHIA; JAQUELINE DALLA ROSA, UNIVERSIDADE FEDERAL DO SUL DA BAHIA; JOÃO CARLOS MEDEIROS, UNIVERSIDADE FEDERAL DO SUL DA BAHIA; CÁCIO LUIZ BOECHAT, UNIVERSIDADE FEDERAL DO PIAUÍ; RAFAELA SIMÃO ABRAHÃO NÓBREGA, UNIVERSIDADE FEDERAL DO RECÔNCAVO DA BAHIA; HENRIQUE ANTUNES DE SOUZA, CPAMN; EDVALDO SAGRILO, CPAMN. |
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Título: |
Microbial indicators of soil quality and soybean yield in agricultural production system using cover crops under no-tillage. |
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Ano de publicação: |
2023 |
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Fonte/Imprenta: |
Australian Journal of Crop Science, v. 17, n. 6, p. 507-515, 2023. |
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ISSN: |
1835-2707 |
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DOI: |
10.21475/ajcs.23.17.06.p3879 |
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Idioma: |
Português |
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Conteúdo: |
Cover crops improve the physical, chemical and biological quality of the soil and boost crop yield. However, the magnitude of the effects on the microbial activity in tropical soils of Cerrado is still little explored. This study aimed to evaluate the soil microbial attributes and soybean yield after cultivation of cover crops in a sandy clay loam oxisol under no-tillage system, in a region with weather dominated by a bimodal rainfall pattern (Aw type). The experiment was designed in randomized blocks, using a split-plot scheme, with different cover crops in the plots and different soil sampling times in the subplots. The cover crops treatments consisted of the previous cultivation of Crotalaria spectabilis (C. spectabilis), Crotalaria ochroleuca (C. ochroleuca), Cajanus cajan (pigeon pea); Urochloa ruziziensis (brachiaria) and Pennisetum glaucum (millet) as monocrop and the intercropping of millet + C. spectabilis and millet + C. ochroleuca. Soil samplings for microbial and chemical attributes evaluations were performed before soybean sowing and after soybean harvest, which occurred at 12 and 18 months after sowing the cover crops. Dry mass (DM) productions of cover crops at full vegetative development stage and soybean yield were also estimated. All the cover crops used in the present study, except the millet + C. spectabilis intercrop produced more than 6 Mg ha-1, with is considered the minimum amount of dry mass indicated as adequate for conservation systems under tropical conditions. Soil cultivated with brachiaria and millet showed higher microbial biomass at 18 months than at 12 months. Similarly, soil cultivated with C. ochroleuca, brachiaria, pigeon pea, millet + C. ochroleuca and millet + C. spectabilis showed higher microbial N at 18 months than at 12 months. Eighteen months after sowing of cover crops, millet maintained the highest soil microbial biomass (161.24 µg C g soil-1) and the millet + C. spectabilis intercrop exhibited the highest soil microbial N contents (30.02 µg N g soil-1) across treatments. Crotalaria ochroleuca, brachiaria, millet + C. ochroleuca and monoculture millet increased soybean yield cultivated in succession, after one single cycle of crop rotation. MenosCover crops improve the physical, chemical and biological quality of the soil and boost crop yield. However, the magnitude of the effects on the microbial activity in tropical soils of Cerrado is still little explored. This study aimed to evaluate the soil microbial attributes and soybean yield after cultivation of cover crops in a sandy clay loam oxisol under no-tillage system, in a region with weather dominated by a bimodal rainfall pattern (Aw type). The experiment was designed in randomized blocks, using a split-plot scheme, with different cover crops in the plots and different soil sampling times in the subplots. The cover crops treatments consisted of the previous cultivation of Crotalaria spectabilis (C. spectabilis), Crotalaria ochroleuca (C. ochroleuca), Cajanus cajan (pigeon pea); Urochloa ruziziensis (brachiaria) and Pennisetum glaucum (millet) as monocrop and the intercropping of millet + C. spectabilis and millet + C. ochroleuca. Soil samplings for microbial and chemical attributes evaluations were performed before soybean sowing and after soybean harvest, which occurred at 12 and 18 months after sowing the cover crops. Dry mass (DM) productions of cover crops at full vegetative development stage and soybean yield were also estimated. All the cover crops used in the present study, except the millet + C. spectabilis intercrop produced more than 6 Mg ha-1, with is considered the minimum amount of dry mass indicated as adequate for conservation systems under tropic... Mostrar Tudo |
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Thesagro: |
Biomassa; Conservação do Solo; Glycine Max; Plantio Direto. |
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Thesaurus NAL: |
Microbial biomass; No-tillage; Soil quality. |
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Categoria do assunto: |
X Pesquisa, Tecnologia e Engenharia |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1157105/1/MicrobialIndicatorsSoilQualitySoybeanAJCS17.2023.pdf
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Marc: |
LEADER 03139naa a2200301 a 4500
001 2157105
005 2023-10-17
008 2023 bl uuuu u00u1 u #d
022 $a1835-2707
024 7 $a10.21475/ajcs.23.17.06.p3879$2DOI
100 1 $aSOUSA, D. C. de
245 $aMicrobial indicators of soil quality and soybean yield in agricultural production system using cover crops under no-tillage.$h[electronic resource]
260 $c2023
520 $aCover crops improve the physical, chemical and biological quality of the soil and boost crop yield. However, the magnitude of the effects on the microbial activity in tropical soils of Cerrado is still little explored. This study aimed to evaluate the soil microbial attributes and soybean yield after cultivation of cover crops in a sandy clay loam oxisol under no-tillage system, in a region with weather dominated by a bimodal rainfall pattern (Aw type). The experiment was designed in randomized blocks, using a split-plot scheme, with different cover crops in the plots and different soil sampling times in the subplots. The cover crops treatments consisted of the previous cultivation of Crotalaria spectabilis (C. spectabilis), Crotalaria ochroleuca (C. ochroleuca), Cajanus cajan (pigeon pea); Urochloa ruziziensis (brachiaria) and Pennisetum glaucum (millet) as monocrop and the intercropping of millet + C. spectabilis and millet + C. ochroleuca. Soil samplings for microbial and chemical attributes evaluations were performed before soybean sowing and after soybean harvest, which occurred at 12 and 18 months after sowing the cover crops. Dry mass (DM) productions of cover crops at full vegetative development stage and soybean yield were also estimated. All the cover crops used in the present study, except the millet + C. spectabilis intercrop produced more than 6 Mg ha-1, with is considered the minimum amount of dry mass indicated as adequate for conservation systems under tropical conditions. Soil cultivated with brachiaria and millet showed higher microbial biomass at 18 months than at 12 months. Similarly, soil cultivated with C. ochroleuca, brachiaria, pigeon pea, millet + C. ochroleuca and millet + C. spectabilis showed higher microbial N at 18 months than at 12 months. Eighteen months after sowing of cover crops, millet maintained the highest soil microbial biomass (161.24 µg C g soil-1) and the millet + C. spectabilis intercrop exhibited the highest soil microbial N contents (30.02 µg N g soil-1) across treatments. Crotalaria ochroleuca, brachiaria, millet + C. ochroleuca and monoculture millet increased soybean yield cultivated in succession, after one single cycle of crop rotation.
650 $aMicrobial biomass
650 $aNo-tillage
650 $aSoil quality
650 $aBiomassa
650 $aConservação do Solo
650 $aGlycine Max
650 $aPlantio Direto
700 1 $aROSA, J. D.
700 1 $aMEDEIROS, J. C.
700 1 $aBOECHAT, C. L.
700 1 $aNÓBREGA, R. S. A.
700 1 $aSOUZA, H. A. de
700 1 $aSAGRILO, E.
773 $tAustralian Journal of Crop Science$gv. 17, n. 6, p. 507-515, 2023.
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