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Biblioteca(s): |
Embrapa Arroz e Feijão. |
Data corrente: |
30/11/2018 |
Data da última atualização: |
01/07/2019 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Circulação/Nível: |
A - 2 |
Autoria: |
NASCENTE, A. S.; STONE, L. F. |
Afiliação: |
ADRIANO STEPHAN NASCENTE, CNPAF; LUIS FERNANDO STONE, CNPAF. |
Título: |
Cover crops as affecting soil chemical and physical properties and development of upland rice and soybean cultivated in rotation. |
Ano de publicação: |
2018 |
Fonte/Imprenta: |
Rice Science, v. 25, n. 6, p. 340-349, 2018. |
ISSN: |
1672-6308 |
Idioma: |
Inglês |
Conteúdo: |
Cover crops can provide changes in soil chemical and physical properties, which could allow a sustainable development of soybean and upland rice rotation in Brazilian Cerrado. The objective of this study was to determine the effects of cover crops (cultivated in the offseason) in the soybean-upland rice rotation (cultivated in the summer season) on the soil chemical and physical properties, yield components and grain yield of the cash crops. The experimental design was a randomized block design in factorial scheme 4 × 2 with six replications. Treatments were composed by four cover crops: fallow, millet (Pennisetum glaucum) + Crotalaria ochroleuca, millet + pigeon pea (Cajanus cajans), and millet + pigeon pea + Urochola ruziziensis in the offseason with one or two cycles of cover crops, with rice (Oryza sativa) or soybean (Glycine max) in the summer season. Cover crops alone provided no changes in soil chemical properties. However, the rotation cover crops / cash crops / cover crops / cash crops reduced pH, Al and H + Al and increased Ca, Mg, K and Fe contents in the soil. The cover crops millet + pigeon pea and millet + pigeon pea + U. ruziziensis improved soil physical properties in relation to fallow, especially in the 0?0.10 m soil layer. In spite of the improvement of the soil physical properties after two years of rotation with cover crops and cash crops, the soil physical quality was still below the recommended level, showing values of macroporosity, S index and soil aeration capacity lower than 0.10 m3/m3, 0.035 and 0.34, respectively. Upland rice production was higher under mixtures of cover crops than under fallow, mainly because of soil physical changes done by these mixtures of cover crops. Soybean grain yield was similar under all cover crops tested, but was higher after the rotation cover crops / upland rice / cover crops than after only one cycle of cover crops. MenosCover crops can provide changes in soil chemical and physical properties, which could allow a sustainable development of soybean and upland rice rotation in Brazilian Cerrado. The objective of this study was to determine the effects of cover crops (cultivated in the offseason) in the soybean-upland rice rotation (cultivated in the summer season) on the soil chemical and physical properties, yield components and grain yield of the cash crops. The experimental design was a randomized block design in factorial scheme 4 × 2 with six replications. Treatments were composed by four cover crops: fallow, millet (Pennisetum glaucum) + Crotalaria ochroleuca, millet + pigeon pea (Cajanus cajans), and millet + pigeon pea + Urochola ruziziensis in the offseason with one or two cycles of cover crops, with rice (Oryza sativa) or soybean (Glycine max) in the summer season. Cover crops alone provided no changes in soil chemical properties. However, the rotation cover crops / cash crops / cover crops / cash crops reduced pH, Al and H + Al and increased Ca, Mg, K and Fe contents in the soil. The cover crops millet + pigeon pea and millet + pigeon pea + U. ruziziensis improved soil physical properties in relation to fallow, especially in the 0?0.10 m soil layer. In spite of the improvement of the soil physical properties after two years of rotation with cover crops and cash crops, the soil physical quality was still below the recommended level, showing values of macroporosity, S index and soil a... Mostrar Tudo |
Thesagro: |
Arroz; Glycine Max; Oryza Sativa; Planta de Cobertura; Plantio Direto; Propriedade Físico-Química; Rotação de Cultura; Solo. |
Thesaurus NAL: |
Cover crops; Crop rotation; No-tillage; Rice; Soybeans; Sustainable agriculture; Tropical agriculture. |
Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/187440/1/CNPAF-2018-rs.pdf
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Marc: |
LEADER 02843naa a2200325 a 4500 001 2100437 005 2019-07-01 008 2018 bl uuuu u00u1 u #d 022 $a1672-6308 100 1 $aNASCENTE, A. S. 245 $aCover crops as affecting soil chemical and physical properties and development of upland rice and soybean cultivated in rotation.$h[electronic resource] 260 $c2018 520 $aCover crops can provide changes in soil chemical and physical properties, which could allow a sustainable development of soybean and upland rice rotation in Brazilian Cerrado. The objective of this study was to determine the effects of cover crops (cultivated in the offseason) in the soybean-upland rice rotation (cultivated in the summer season) on the soil chemical and physical properties, yield components and grain yield of the cash crops. The experimental design was a randomized block design in factorial scheme 4 × 2 with six replications. Treatments were composed by four cover crops: fallow, millet (Pennisetum glaucum) + Crotalaria ochroleuca, millet + pigeon pea (Cajanus cajans), and millet + pigeon pea + Urochola ruziziensis in the offseason with one or two cycles of cover crops, with rice (Oryza sativa) or soybean (Glycine max) in the summer season. Cover crops alone provided no changes in soil chemical properties. However, the rotation cover crops / cash crops / cover crops / cash crops reduced pH, Al and H + Al and increased Ca, Mg, K and Fe contents in the soil. The cover crops millet + pigeon pea and millet + pigeon pea + U. ruziziensis improved soil physical properties in relation to fallow, especially in the 0?0.10 m soil layer. In spite of the improvement of the soil physical properties after two years of rotation with cover crops and cash crops, the soil physical quality was still below the recommended level, showing values of macroporosity, S index and soil aeration capacity lower than 0.10 m3/m3, 0.035 and 0.34, respectively. Upland rice production was higher under mixtures of cover crops than under fallow, mainly because of soil physical changes done by these mixtures of cover crops. Soybean grain yield was similar under all cover crops tested, but was higher after the rotation cover crops / upland rice / cover crops than after only one cycle of cover crops. 650 $aCover crops 650 $aCrop rotation 650 $aNo-tillage 650 $aRice 650 $aSoybeans 650 $aSustainable agriculture 650 $aTropical agriculture 650 $aArroz 650 $aGlycine Max 650 $aOryza Sativa 650 $aPlanta de Cobertura 650 $aPlantio Direto 650 $aPropriedade Físico-Química 650 $aRotação de Cultura 650 $aSolo 700 1 $aSTONE, L. F. 773 $tRice Science$gv. 25, n. 6, p. 340-349, 2018.
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Embrapa Arroz e Feijão (CNPAF) |
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