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| Registros recuperados : 377 | |
| 1. |  | PASSOS, R. R.; COSTA, L. M. da.; ASSIS, I. R. de.; SANTOS, D. A.; RUIZ, H. A.; GUIMARÃES, L. A. de O. P. G.; ANDRADE, F. V. Least limiting water range of Udox soil under degraded pastures on different sun-exposed faces. International Agrophysics, v. 31, p. 393-400, 2017.| Biblioteca(s): Biblioteca Rui Tendinha. |
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| Registros recuperados : 377 | |
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Registro Completo |
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Biblioteca(s): |
Biblioteca Rui Tendinha. |
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Data corrente: |
24/04/2015 |
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Data da última atualização: |
24/04/2015 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 2 |
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Autoria: |
SOUZA, G. S. de.; SOUZA, Z. M. de.; COOPER, M.; TORMENA, C. A. |
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Afiliação: |
Gustavo Soares de Souza, Incaper; Zigomar Menezes de Souza; Miguel Cooper; Cássio Antônio Tormena. |
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Título: |
Controlled traffic and soil physical quality of an Oxisol under sugarcane cultivation. |
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Ano de publicação: |
2015 |
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Fonte/Imprenta: |
Scientia Agricola, Piracicaba, v. 72, n.3, p. 270-277, 2015. |
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DOI: |
http://dx.doi.org/10.1590/0103-9016-2014-0078 |
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Idioma: |
Inglês |
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Conteúdo: |
Machinery traffic in sugarcane (Saccharumsp.) plantations reduces soil physical quality, and hinders both root development and crop yield. We evaluated the physical quality of an Oxisol and the development of sugarcane roots under controlled traffic. The treatments assessed were: without controlled machinery traffic (WCT), controlled traffic by adjusting the tractor and infield wagons to a 3.0 m track width with the operator guiding the machinery (CT1) and the previous treatment using real time kinematic / global positioning system (RTK / GPS) precision auto steer (CT2). Soil samples were collected from the planting rows, seedbed and inter-row center to determine the least limiting water range (LLWR) and soil porosity from scanned 2-D images. The root dry mass was sampled from monoliths, separated from the soil by washing through a 2-mm sieve and dried in an oven. A higher LLWR was observed in the planting row under CT1 and CT2 than under WCT. The planting row had a predominance of complex pores with a diameter > 500 µm in the 0.15-0.27 m depth layer under CT1 and CT2. In the planting rows under WCT, the root dry mass was only 44 % of that measured under CT2. Benefits regarding soil physical quality and growth roots were observed when the tractor-wagon track width was adjusted based on the sugarcane spacing using either precision auto steering or manual operation of the machinery. MenosMachinery traffic in sugarcane (Saccharumsp.) plantations reduces soil physical quality, and hinders both root development and crop yield. We evaluated the physical quality of an Oxisol and the development of sugarcane roots under controlled traffic. The treatments assessed were: without controlled machinery traffic (WCT), controlled traffic by adjusting the tractor and infield wagons to a 3.0 m track width with the operator guiding the machinery (CT1) and the previous treatment using real time kinematic / global positioning system (RTK / GPS) precision auto steer (CT2). Soil samples were collected from the planting rows, seedbed and inter-row center to determine the least limiting water range (LLWR) and soil porosity from scanned 2-D images. The root dry mass was sampled from monoliths, separated from the soil by washing through a 2-mm sieve and dried in an oven. A higher LLWR was observed in the planting row under CT1 and CT2 than under WCT. The planting row had a predominance of complex pores with a diameter > 500 µm in the 0.15-0.27 m depth layer under CT1 and CT2. In the planting rows under WCT, the root dry mass was only 44 % of that measured under CT2. Benefits regarding soil physical quality and growth roots were observed when the tractor-wagon track width was adjusted based on the sugarcane spacing ... Mostrar Tudo |
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Palavras-Chave: |
Least limiting water range; Machinery traffic; Root system; Soil compaction. |
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Categoria do assunto: |
-- |
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URL: |
http://biblioteca.incaper.es.gov.br/digital/bitstream/item/742/1/gustavosoares2.pdf
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Marc: |
LEADER 02299naa a2200217 a 4500
001 1006320
005 2015-04-24
008 2015 bl uuuu u00u1 u #d
024 7 $ahttp://dx.doi.org/10.1590/0103-9016-2014-0078$2DOI
100 1 $aSOUZA, G. S. de.
245 $aControlled traffic and soil physical quality of an Oxisol under sugarcane cultivation.$h[electronic resource]
260 $c2015
520 $aMachinery traffic in sugarcane (Saccharumsp.) plantations reduces soil physical quality, and hinders both root development and crop yield. We evaluated the physical quality of an Oxisol and the development of sugarcane roots under controlled traffic. The treatments assessed were: without controlled machinery traffic (WCT), controlled traffic by adjusting the tractor and infield wagons to a 3.0 m track width with the operator guiding the machinery (CT1) and the previous treatment using real time kinematic / global positioning system (RTK / GPS) precision auto steer (CT2). Soil samples were collected from the planting rows, seedbed and inter-row center to determine the least limiting water range (LLWR) and soil porosity from scanned 2-D images. The root dry mass was sampled from monoliths, separated from the soil by washing through a 2-mm sieve and dried in an oven. A higher LLWR was observed in the planting row under CT1 and CT2 than under WCT. The planting row had a predominance of complex pores with a diameter > 500 µm in the 0.15-0.27 m depth layer under CT1 and CT2. In the planting rows under WCT, the root dry mass was only 44 % of that measured under CT2. Benefits regarding soil physical quality and growth roots were observed when the tractor-wagon track width was adjusted based on the sugarcane spacing using either precision auto steering or manual operation of the machinery.
653 $aLeast limiting water range
653 $aMachinery traffic
653 $aRoot system
653 $aSoil compaction
700 1 $aSOUZA, Z. M. de.
700 1 $aCOOPER, M.
700 1 $aTORMENA, C. A.
773 $tScientia Agricola, Piracicaba$gv. 72, n.3, p. 270-277, 2015.
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Biblioteca Rui Tendinha (BRT) |
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