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Registro Completo |
Biblioteca(s): |
Embrapa Solos. |
Data corrente: |
22/11/2002 |
Data da última atualização: |
22/11/2002 |
Autoria: |
OLMOS ITURRI LARACH, J.; CARVALHO, W. A.; ACHA PANOSO, L.; CAJUEIRO, E. V. de M.; FREIRE, O. |
Título: |
Aplicacao do sistema de avaliacao do potencial utilitario dos recursos edafo-ambientais na classificacao da aptidao agricola das terras da Bacia do Rio Santo Anastacio-SP. |
Ano de publicação: |
1997 |
Fonte/Imprenta: |
In: CONGRESSO BRASILEIRO DE CIENCIA DO SOLO, 26., 1997. Rio de Janeiro, RJ. Resumos... Rio de Janeiro: Sociedade Brasileira de Ciencia do Solo, 1997. p.402. |
Idioma: |
Português |
Conteúdo: |
Objetivando aplicar o Sistema especialista APURE (avaliacao do potencial utilitario dos recursos edafo-ambientais) para avaliacao da aptidao agricola das terras, "software" - prototipo, (Olmos et al.,1997), foi escolhida como area piloto a bacia do Rio Santo Anastacio-SP por compreender a maior parte das unidades edaficas da grande regiao oeste do Estado de Sao Paulo. A classificacao da aptidao agricola das terras da bacia, atraves da analise e interpretacao automatica de caracteristicas morfologicas, fisicas e quimicas dos solos, (Carvalho et al., 1996), mostrou-se coerente com as condicoes edaficas do ambiente para uso agricola sustentado. |
Categoria do assunto: |
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Marc: |
LEADER 01339naa a2200169 a 4500 001 1331452 005 2002-11-22 008 1997 bl uuuu u00u1 u #d 100 1 $aOLMOS ITURRI LARACH, J. 245 $aAplicacao do sistema de avaliacao do potencial utilitario dos recursos edafo-ambientais na classificacao da aptidao agricola das terras da Bacia do Rio Santo Anastacio-SP. 260 $c1997 520 $aObjetivando aplicar o Sistema especialista APURE (avaliacao do potencial utilitario dos recursos edafo-ambientais) para avaliacao da aptidao agricola das terras, "software" - prototipo, (Olmos et al.,1997), foi escolhida como area piloto a bacia do Rio Santo Anastacio-SP por compreender a maior parte das unidades edaficas da grande regiao oeste do Estado de Sao Paulo. A classificacao da aptidao agricola das terras da bacia, atraves da analise e interpretacao automatica de caracteristicas morfologicas, fisicas e quimicas dos solos, (Carvalho et al., 1996), mostrou-se coerente com as condicoes edaficas do ambiente para uso agricola sustentado. 700 1 $aCARVALHO, W. A. 700 1 $aACHA PANOSO, L. 700 1 $aCAJUEIRO, E. V. de M. 700 1 $aFREIRE, O. 773 $tIn: CONGRESSO BRASILEIRO DE CIENCIA DO SOLO, 26., 1997. Rio de Janeiro, RJ. Resumos... Rio de Janeiro: Sociedade Brasileira de Ciencia do Solo, 1997. p.402.
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Embrapa Solos (CNPS) |
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Registro Completo
Biblioteca(s): |
Embrapa Rondônia. |
Data corrente: |
06/02/2018 |
Data da última atualização: |
06/03/2018 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Circulação/Nível: |
B - 1 |
Autoria: |
PASSOS, A. M. A. dos; AKER, A. M.; COSTA, R. S. C. da; SANTOS, F. C. dos; LEITE, V. P. D.; MARCOLAN, A. L. |
Afiliação: |
ROGERIO SEBASTIAO CORREA DA COSTA, CPAF-Rondonia; ALAERTO LUIZ MARCOLAN, CPAF-Rondonia. |
Título: |
Effect of cover crops on physico-chemical attributes of soil in a short-term experiment in the southwestern Amazon region. |
Ano de publicação: |
2017 |
Fonte/Imprenta: |
African Journal of Agricultural Research v. 12, n. 47, p. 3339-3347, Nov. 2017. |
DOI: |
10.5897/AJAR2017.12800 |
Idioma: |
Português |
Conteúdo: |
No-tillage is an agricultural system that is proposed as a sustainable soil management system. This paper aims to evaluate the short-term effects of cover crops on a no-tillage system, by assessing a number of physical and chemical attributes of soil of the Brazilian Amazon region. The experiment was carried out in a typical Ferralsol under a no-tillage system from March to December, 2014. A randomized block design, with four replicates was used. The performance and effects of fourteen cover crops (Cajanus cajan, Canavalia ensiformis, Crotalaria juncea, Crotalaria ochroleuca, Crotalaria spectabilis, Stizolobium aterrima, Stizolobium cinereum, Pennisetum glaucum, Sorghum bicolor, Sorghum sudanense, Urochloa brizanha cv. Xaraés, Urochloa brizantha cv. Piatã and Urochloa ruziziensis and Zea mays) and fallow (control treatment) on the soil quality were assessed. The cover crops were sown in the off season in April 2014, before the summer crop (maize). The levels of P, K, Ca2+, Mg2+, Al3+, H+Al, saturation by aluminum, sum of bases, organic matter, pH and resistance to soil penetration were evaluated following the end of the cover crops growth. Some near-surface soil attributes were affected by the cover crops. Urochloa species improved the levels of potassium in the soil at depths up to 5 cm below the surface. The highest penetration resistance was observed in the superficial layer between 12 and 16 cm deep, with penetration resistance values varying between 2472 and 2912 kPa. The Urochloa exhibited satisfactory agronomic performance when grown under a simulated crop livestock integration system. It is concluded that the use of cover crops in a no-till system has the potential to improve the chemical quality of soil in the Southwestern Amazon region. MenosNo-tillage is an agricultural system that is proposed as a sustainable soil management system. This paper aims to evaluate the short-term effects of cover crops on a no-tillage system, by assessing a number of physical and chemical attributes of soil of the Brazilian Amazon region. The experiment was carried out in a typical Ferralsol under a no-tillage system from March to December, 2014. A randomized block design, with four replicates was used. The performance and effects of fourteen cover crops (Cajanus cajan, Canavalia ensiformis, Crotalaria juncea, Crotalaria ochroleuca, Crotalaria spectabilis, Stizolobium aterrima, Stizolobium cinereum, Pennisetum glaucum, Sorghum bicolor, Sorghum sudanense, Urochloa brizanha cv. Xaraés, Urochloa brizantha cv. Piatã and Urochloa ruziziensis and Zea mays) and fallow (control treatment) on the soil quality were assessed. The cover crops were sown in the off season in April 2014, before the summer crop (maize). The levels of P, K, Ca2+, Mg2+, Al3+, H+Al, saturation by aluminum, sum of bases, organic matter, pH and resistance to soil penetration were evaluated following the end of the cover crops growth. Some near-surface soil attributes were affected by the cover crops. Urochloa species improved the levels of potassium in the soil at depths up to 5 cm below the surface. The highest penetration resistance was observed in the superficial layer between 12 and 16 cm deep, with penetration resistance values varying between 2472 and 2912 kPa. T... Mostrar Tudo |
Palavras-Chave: |
Sustentabilidade. |
Thesagro: |
Esterco; Física do solo; Planta de cobertura; Plantio direto; Química do solo. |
Categoria do assunto: |
-- |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/168334/1/Effect-cover.pdf
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Marc: |
LEADER 02628naa a2200265 a 4500 001 2087212 005 2018-03-06 008 2017 bl --- 0-- u #d 024 7 $a10.5897/AJAR2017.12800$2DOI 100 1 $aPASSOS, A. M. A. dos 245 $aEffect of cover crops on physico-chemical attributes of soil in a short-term experiment in the southwestern Amazon region.$h[electronic resource] 260 $c2017 520 $aNo-tillage is an agricultural system that is proposed as a sustainable soil management system. This paper aims to evaluate the short-term effects of cover crops on a no-tillage system, by assessing a number of physical and chemical attributes of soil of the Brazilian Amazon region. The experiment was carried out in a typical Ferralsol under a no-tillage system from March to December, 2014. A randomized block design, with four replicates was used. The performance and effects of fourteen cover crops (Cajanus cajan, Canavalia ensiformis, Crotalaria juncea, Crotalaria ochroleuca, Crotalaria spectabilis, Stizolobium aterrima, Stizolobium cinereum, Pennisetum glaucum, Sorghum bicolor, Sorghum sudanense, Urochloa brizanha cv. Xaraés, Urochloa brizantha cv. Piatã and Urochloa ruziziensis and Zea mays) and fallow (control treatment) on the soil quality were assessed. The cover crops were sown in the off season in April 2014, before the summer crop (maize). The levels of P, K, Ca2+, Mg2+, Al3+, H+Al, saturation by aluminum, sum of bases, organic matter, pH and resistance to soil penetration were evaluated following the end of the cover crops growth. Some near-surface soil attributes were affected by the cover crops. Urochloa species improved the levels of potassium in the soil at depths up to 5 cm below the surface. The highest penetration resistance was observed in the superficial layer between 12 and 16 cm deep, with penetration resistance values varying between 2472 and 2912 kPa. The Urochloa exhibited satisfactory agronomic performance when grown under a simulated crop livestock integration system. It is concluded that the use of cover crops in a no-till system has the potential to improve the chemical quality of soil in the Southwestern Amazon region. 650 $aEsterco 650 $aFísica do solo 650 $aPlanta de cobertura 650 $aPlantio direto 650 $aQuímica do solo 653 $aSustentabilidade 700 1 $aAKER, A. M. 700 1 $aCOSTA, R. S. C. da 700 1 $aSANTOS, F. C. dos 700 1 $aLEITE, V. P. D. 700 1 $aMARCOLAN, A. L. 773 $tAfrican Journal of Agricultural Research$gv. 12, n. 47, p. 3339-3347, Nov. 2017.
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