Least limiting water range in soil under crop rotations and chiseling
Autor(a) principal: | |
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Data de Publicação: | 2011 |
Outros Autores: | |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1590/S0100-06832011000300012 http://hdl.handle.net/11449/5522 |
Resumo: | Soil water availability to plants is affected by soil compaction and other variables. The Least Limiting Water Range (LLWR) comprises soil physical variables affecting root growth and soil water availability, and can be managed by either mechanical or biological methods. There is evidence that effects of crop rotations could last longer than chiseling, so the objective of this study was to assess the effect of soil chiseling or growing cover crops under no-till (NT) on the LLWR. Crop rotations involving triticale (X Triticosecale) and sunflower (Helianthus annuus) in the fall-winter associated with millet (Pennisetum glaucum), sorghum (Sorghum bicolor) and sunn hemp (Crotalariajuncea) as cover crops preceding soybean (Glycine max) were repeated for three consecutive years. In the treatment with chiseling (performed. only in the first year), the area was left fallow between the fall-winter and summer crops. The experiment was carried out in Botucatu, São Paulo State, Brazil, from 2003 to 2006 on a Typic Rhodudalf. The LLWR was determined in soil samples taken from the layers 0-20 cm and 20-40 cm, after chemical desiccation of the cover crops in December of the first and third year of the experiment. Chiseling decreases soil bulk density in the 0-20 cm soil layer, increasing the LLWR magnitude by lowering the soil water content at which penetration resistance reaches 2.0 MPa; this effect is present up to the third year after chiseling and can reach to a depth of 0.40 in. Crop rotations involving sunflower + sunn hemp, triticale + millet and triticale + sunn hemp for three years prevented soil bulk density from exceeding the critical soil bulk density in the 0-0.20 in layer. This effect was observed to a depth of 0.40 m after three years of chiseling under crop rotations involving forage sorghum. Hence, chiseling and some crop rotations under no tillage are effective in increasing soil quality assessed by the LLWR. |
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Least limiting water range in soil under crop rotations and chiselingIntervalo hídrico ótimo em solo sob rotação de culturas e escarificaçãocover cropscrop rotationsoil compactionno tillsoil waterSoil water availability to plants is affected by soil compaction and other variables. The Least Limiting Water Range (LLWR) comprises soil physical variables affecting root growth and soil water availability, and can be managed by either mechanical or biological methods. There is evidence that effects of crop rotations could last longer than chiseling, so the objective of this study was to assess the effect of soil chiseling or growing cover crops under no-till (NT) on the LLWR. Crop rotations involving triticale (X Triticosecale) and sunflower (Helianthus annuus) in the fall-winter associated with millet (Pennisetum glaucum), sorghum (Sorghum bicolor) and sunn hemp (Crotalariajuncea) as cover crops preceding soybean (Glycine max) were repeated for three consecutive years. In the treatment with chiseling (performed. only in the first year), the area was left fallow between the fall-winter and summer crops. The experiment was carried out in Botucatu, São Paulo State, Brazil, from 2003 to 2006 on a Typic Rhodudalf. The LLWR was determined in soil samples taken from the layers 0-20 cm and 20-40 cm, after chemical desiccation of the cover crops in December of the first and third year of the experiment. Chiseling decreases soil bulk density in the 0-20 cm soil layer, increasing the LLWR magnitude by lowering the soil water content at which penetration resistance reaches 2.0 MPa; this effect is present up to the third year after chiseling and can reach to a depth of 0.40 in. Crop rotations involving sunflower + sunn hemp, triticale + millet and triticale + sunn hemp for three years prevented soil bulk density from exceeding the critical soil bulk density in the 0-0.20 in layer. This effect was observed to a depth of 0.40 m after three years of chiseling under crop rotations involving forage sorghum. Hence, chiseling and some crop rotations under no tillage are effective in increasing soil quality assessed by the LLWR.A disponibilidade de água às plantas é alterada pela compactação do solo e outras variáveis. O Intervalo Hídrico Ótimo (IHO) integra variáveis físicas do solo que alteram o crescimento radicular e a disponibilidade de água e pode ser manejado por métodos mecânicos ou biológicos. Há evidências de que os efeitos da rotação de culturas são mais duradouros que os da escarificação. O objetivo deste trabalho foi avaliar o efeito da escarificação e, ou, rotação de culturas em sistema de semeadura direta (SSD) no IHO. Rotações envolvendo triticale (X Triticosecale) e girassol (Helianthus annuus) no outono-inverno e milheto (Pennisetum glaucum), sorgo (Sorghum bicolor) e crotalária (Crotalaria juncea) com plantas de cobertura precedendo a soja (Glycine max) foram repetidas por três anos. No tratamento com escarificação, a área foi deixada em pousio entre as culturas de outono-inverno e verão. O experimento foi conduzido em Botucatu, São Paulo, Brasil, de 2003 a 2006 em um Nitossolo Vermelho. O IHO foi determinado em amostras de solo das profundidades de 0-20 e 20-40 cm, logo após a dessecação química das plantas de cobertura, em dezembro do primeiro e do terceiro ano do experimento. A escarificação diminui a densidade do solo na camada de 0-20 cm, aumentando o IHO por meio da redução da umidade do solo em que a resistência à penetração atinge 2,0 MPa; esse efeito mantém-se até o terceiro ano após a escarificação, podendo chegar a até 40 cm de profundidade. As rotações de culturas envolvendo girassol + crotalária, triticale + milheto e triticale + crotalária por três anos ajudaram a prevenir o aumento na densidade do solo acima do valor crítico na camada de 0-20 cm. Esse efeito é observado na camada de 20- 40 cm após três anos da escarificação e com rotações de culturas envolvendo sorgo. Assim, a escarificação e algumas rotações de culturas em sistema de semeadura direta são eficientes em melhorar a qualidade do solo avaliada pelo IHO.Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)São Paulo State Univ, Coll Agr Sci, Dept Crop Sci, Botucatu, SP, BrazilUniv Oeste Paulista, Ctr Agr Sci, BR-19067175 Presidente Prudente, SP, BrazilSão Paulo State Univ, Coll Agr Sci, Dept Crop Sci, Botucatu, SP, BrazilSociedade Brasileira de Ciência do SoloUniversidade Estadual Paulista (Unesp)Universidade do Oeste Paulista (UNOESTE)Calonego, Juliano Carlos [UNESP]Rosolem, Ciro Antonio [UNESP]2014-05-20T13:20:09Z2014-05-20T13:20:09Z2011-05-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article759-771application/pdfhttp://dx.doi.org/10.1590/S0100-06832011000300012Revista Brasileira de Ciência do Solo. Vicosa: Soc Brasileira de Ciência do Solo, v. 35, n. 3, p. 759-771, 2011.0100-0683http://hdl.handle.net/11449/5522S0100-06832011000300012WOS:000293039600012S0100-06832011000300012-en.pdf57207758732595280000-0003-2001-0874Web of Sciencereponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengRevista Brasileira de Ciência do Solo0.7990,679info:eu-repo/semantics/openAccess2024-04-30T15:57:56Zoai:repositorio.unesp.br:11449/5522Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-04-30T15:57:56Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Least limiting water range in soil under crop rotations and chiseling Intervalo hídrico ótimo em solo sob rotação de culturas e escarificação |
title |
Least limiting water range in soil under crop rotations and chiseling |
spellingShingle |
Least limiting water range in soil under crop rotations and chiseling Calonego, Juliano Carlos [UNESP] cover crops crop rotation soil compaction no till soil water |
title_short |
Least limiting water range in soil under crop rotations and chiseling |
title_full |
Least limiting water range in soil under crop rotations and chiseling |
title_fullStr |
Least limiting water range in soil under crop rotations and chiseling |
title_full_unstemmed |
Least limiting water range in soil under crop rotations and chiseling |
title_sort |
Least limiting water range in soil under crop rotations and chiseling |
author |
Calonego, Juliano Carlos [UNESP] |
author_facet |
Calonego, Juliano Carlos [UNESP] Rosolem, Ciro Antonio [UNESP] |
author_role |
author |
author2 |
Rosolem, Ciro Antonio [UNESP] |
author2_role |
author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) Universidade do Oeste Paulista (UNOESTE) |
dc.contributor.author.fl_str_mv |
Calonego, Juliano Carlos [UNESP] Rosolem, Ciro Antonio [UNESP] |
dc.subject.por.fl_str_mv |
cover crops crop rotation soil compaction no till soil water |
topic |
cover crops crop rotation soil compaction no till soil water |
description |
Soil water availability to plants is affected by soil compaction and other variables. The Least Limiting Water Range (LLWR) comprises soil physical variables affecting root growth and soil water availability, and can be managed by either mechanical or biological methods. There is evidence that effects of crop rotations could last longer than chiseling, so the objective of this study was to assess the effect of soil chiseling or growing cover crops under no-till (NT) on the LLWR. Crop rotations involving triticale (X Triticosecale) and sunflower (Helianthus annuus) in the fall-winter associated with millet (Pennisetum glaucum), sorghum (Sorghum bicolor) and sunn hemp (Crotalariajuncea) as cover crops preceding soybean (Glycine max) were repeated for three consecutive years. In the treatment with chiseling (performed. only in the first year), the area was left fallow between the fall-winter and summer crops. The experiment was carried out in Botucatu, São Paulo State, Brazil, from 2003 to 2006 on a Typic Rhodudalf. The LLWR was determined in soil samples taken from the layers 0-20 cm and 20-40 cm, after chemical desiccation of the cover crops in December of the first and third year of the experiment. Chiseling decreases soil bulk density in the 0-20 cm soil layer, increasing the LLWR magnitude by lowering the soil water content at which penetration resistance reaches 2.0 MPa; this effect is present up to the third year after chiseling and can reach to a depth of 0.40 in. Crop rotations involving sunflower + sunn hemp, triticale + millet and triticale + sunn hemp for three years prevented soil bulk density from exceeding the critical soil bulk density in the 0-0.20 in layer. This effect was observed to a depth of 0.40 m after three years of chiseling under crop rotations involving forage sorghum. Hence, chiseling and some crop rotations under no tillage are effective in increasing soil quality assessed by the LLWR. |
publishDate |
2011 |
dc.date.none.fl_str_mv |
2011-05-01 2014-05-20T13:20:09Z 2014-05-20T13:20:09Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.1590/S0100-06832011000300012 Revista Brasileira de Ciência do Solo. Vicosa: Soc Brasileira de Ciência do Solo, v. 35, n. 3, p. 759-771, 2011. 0100-0683 http://hdl.handle.net/11449/5522 S0100-06832011000300012 WOS:000293039600012 S0100-06832011000300012-en.pdf 5720775873259528 0000-0003-2001-0874 |
url |
http://dx.doi.org/10.1590/S0100-06832011000300012 http://hdl.handle.net/11449/5522 |
identifier_str_mv |
Revista Brasileira de Ciência do Solo. Vicosa: Soc Brasileira de Ciência do Solo, v. 35, n. 3, p. 759-771, 2011. 0100-0683 S0100-06832011000300012 WOS:000293039600012 S0100-06832011000300012-en.pdf 5720775873259528 0000-0003-2001-0874 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Revista Brasileira de Ciência do Solo 0.799 0,679 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
759-771 application/pdf |
dc.publisher.none.fl_str_mv |
Sociedade Brasileira de Ciência do Solo |
publisher.none.fl_str_mv |
Sociedade Brasileira de Ciência do Solo |
dc.source.none.fl_str_mv |
Web of Science reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1799965300297302016 |