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Registro Completo |
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Biblioteca(s): |
Embrapa Soja. |
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Data corrente: |
06/12/2011 |
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Data da última atualização: |
04/04/2025 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
CONTE, O.; LEVIEN, R.; DEBIASI, H.; STURMER, S. L. K.; MAZURANA, M.; MULLER, J. |
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Afiliação: |
OSMAR CONTE, UFRGS; RENATO LEVIEN, UFRGS; HENRIQUE DEBIASI, CNPSO; SIDINEI LEANDRO KLOCKNER STURMER, UFRGS; MICHAEL MAZURANA, UFRGS; JÔNATAN MULLER, UFRGS. |
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Título: |
Soil disturbance index as an indicator of seed drill efficiency in no-tillage agrosystems. |
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Ano de publicação: |
2011 |
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Fonte/Imprenta: |
Soil & Tillage Research, v. 114, n. 1, p. 37-42, 2011. |
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DOI: |
10.1016/j.still.2011.03.007 |
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Idioma: |
Inglês |
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Conteúdo: |
In no-tillage agroecosystems, furrow openers prepare the seed line to place the seeds and fertilizers, and this event represents a unique opportunity to disturb the soil in this kind of crop system. Shanks are used to promote an appropriate soil physical condition, and, in case of soil compaction problems, shanks are used more frequently and at deeper layers of the soil profile. However, this deeper use causes greater draught and does not appropriately disturb the soil because narrow shanks have limited depth performance (critical depth). Here, we tested the operation of shanks in Oxisol and Alfisol. We assessed the shank performance 618 cm of depth, and we evaluated several soil disturbance parameters, such as area of groove, effective depth, and volume, as well as the demand of power force. Based on this evaluation, we calculated the specific power demand and the disturbance index, which is obtained from the ratio of disturbed area and maximum depth. With increasing depth of operation, the specific power demand increased in both soil types, while the disturbance index remaining approximately constant in the Oxisol and decreasing in the Alfisol. In the latter soil type, the shanks operated at more than 12 cm deep, and the lower disturbance index indicated a loss of efficiency in the soil disturbance. Therefore, the disturbance index is an efficient indicator of both the performance of seed drill shanks and the soil disturbance in no-till systems. |
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Thesagro: |
Solo. |
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Thesaurus Nal: |
Disturbed soils. |
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Categoria do assunto: |
X Pesquisa, Tecnologia e Engenharia |
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Marc: |
LEADER 02105naa a2200217 a 4500
001 1908690
005 2025-04-04
008 2011 bl uuuu u00u1 u #d
024 7 $a10.1016/j.still.2011.03.007$2DOI
100 1 $aCONTE, O.
245 $aSoil disturbance index as an indicator of seed drill efficiency in no-tillage agrosystems.$h[electronic resource]
260 $c2011
520 $aIn no-tillage agroecosystems, furrow openers prepare the seed line to place the seeds and fertilizers, and this event represents a unique opportunity to disturb the soil in this kind of crop system. Shanks are used to promote an appropriate soil physical condition, and, in case of soil compaction problems, shanks are used more frequently and at deeper layers of the soil profile. However, this deeper use causes greater draught and does not appropriately disturb the soil because narrow shanks have limited depth performance (critical depth). Here, we tested the operation of shanks in Oxisol and Alfisol. We assessed the shank performance 618 cm of depth, and we evaluated several soil disturbance parameters, such as area of groove, effective depth, and volume, as well as the demand of power force. Based on this evaluation, we calculated the specific power demand and the disturbance index, which is obtained from the ratio of disturbed area and maximum depth. With increasing depth of operation, the specific power demand increased in both soil types, while the disturbance index remaining approximately constant in the Oxisol and decreasing in the Alfisol. In the latter soil type, the shanks operated at more than 12 cm deep, and the lower disturbance index indicated a loss of efficiency in the soil disturbance. Therefore, the disturbance index is an efficient indicator of both the performance of seed drill shanks and the soil disturbance in no-till systems.
650 $aDisturbed soils
650 $aSolo
700 1 $aLEVIEN, R.
700 1 $aDEBIASI, H.
700 1 $aSTURMER, S. L. K.
700 1 $aMAZURANA, M.
700 1 $aMULLER, J.
773 $tSoil & Tillage Research$gv. 114, n. 1, p. 37-42, 2011.
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| 2. |  | COSTACURTA, C. R. C.; VIEGAS, I. de J. M.; SAMPAIO, M. do C. T.; THOMAZ, M. A. A. Efeito da aplicação de cálcio na concentração de macronutrientes em plantas jovens de seringueira (Hevea spp). In: CONGRESSO BRASILEIRO DE CIÊNCIA DO SOLO, 27., 1999, Brasília, DF. [Anais]. Brasília, DF: Embrapa Cerrados: UNB, 1999.| Tipo: Resumo em Anais de Congresso |
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| 3. | | THOMAZ, M. A. A.; MATOS, A. de O.; VIEGAS, I. de J. M.; SAMPAIO, M. do C. T. Efeito da aplicação do fósforo no crescimento do taxi Sclerolobium paniculatum Vogel. In: REUNIÃO BRASILEIRA DE FERTILIDADE DO SOLO E NUTRIÇÃO DE PLANTAS, 23.; REUNIÃO BRASILEIRA SOBRE MICORRIZAS, 7.; SIMPÓSIO BRASILEIRO DE MICROBIOLOGIA DO SOLO, 5.; REUNIÃO BRASILEIRA DE BIOLOGIA DO SOLO, 2., 1998, Caxambu. Interrelação fertilidade, biologia do solo e nutrição de plantas: consolidando um paradigma: resumos. Lavras: UFLA: SBCS: SBM, 1998. p. 681. FertBIO 98.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Amazônia Oriental. |
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| 8. | | THOMAZ, M. A. A.; MATOS, A. de O.; VIEGAS, I. de J. M.; SAMPAIO, M. do C. T.; KATO, A. K. Efeito da aplicação do fosfato de trauíra na concentração de macronutrientes em plantas de taxi-branco (Sclerolobium paniculatum Vogel). In: CONGRESSO BRASILEIRO DE CIÊNCIA DO SOLO, 27., 1999, Brasília, DF [Anais]. Brasília, DF: Embrapa Cerrados: UNB, 1999.| Tipo: Resumo em Anais de Congresso |
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