Nitrate leaching in soybean rotations without nitrogen fertilizer
Autor(a) principal: | |
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Data de Publicação: | 2018 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1007/s11104-017-3494-4 http://hdl.handle.net/11449/160140 |
Resumo: | Nitrate leaching is a primary pathway of nitrogen loss from agricultural systems, and is affected by both tillage and cropped species. However, there is little information on conservation systems without nitrogen fertilization. Nitrate leaching was assessed in soybean (Glycine max) cropped in rotation with the following cover crops under no-till and chiseling: ruzigrass (Brachiaria ruziziensis), grain sorghum (Sorghum bicolor), pearl millet (Pennisetum glaucum), forage sorghum (Sorghum bicolor), Sunn hemp (Crotalaria juncea), triticale (X Triticosecale) and sunflower (Helianthus annuus). Ruzigrass and grain sorghum cropped in the fall/winter resulted in similar NO3 (-) leaching, which was greater under sunflower than under triticale, likely due to high N uptake and immobilization in plant residues. Sunn hemp as a spring crop resulted in higher NO3 (-) leaching than pearl millet at two locations and forage sorghum at one location likely due to a higher N input by biological fixation. Millet resulted in the lowest N leaching by depleting the soil solution. Chiseling/fallow resulted in higher nitrogen leaching as compared with non-fixing N cover crops. Even when N is not applied, it is important to intensify cropping systems in tropical environments using cover crops with vigorous root systems and high N demand, which prevent N leaching, as well as provides N to the following crop as the straw is mineralized. |
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Nitrate leaching in soybean rotations without nitrogen fertilizerNitrateSunn hempGrain sorghumPearl milletDrainageNo-tillNitrate leaching is a primary pathway of nitrogen loss from agricultural systems, and is affected by both tillage and cropped species. However, there is little information on conservation systems without nitrogen fertilization. Nitrate leaching was assessed in soybean (Glycine max) cropped in rotation with the following cover crops under no-till and chiseling: ruzigrass (Brachiaria ruziziensis), grain sorghum (Sorghum bicolor), pearl millet (Pennisetum glaucum), forage sorghum (Sorghum bicolor), Sunn hemp (Crotalaria juncea), triticale (X Triticosecale) and sunflower (Helianthus annuus). Ruzigrass and grain sorghum cropped in the fall/winter resulted in similar NO3 (-) leaching, which was greater under sunflower than under triticale, likely due to high N uptake and immobilization in plant residues. Sunn hemp as a spring crop resulted in higher NO3 (-) leaching than pearl millet at two locations and forage sorghum at one location likely due to a higher N input by biological fixation. Millet resulted in the lowest N leaching by depleting the soil solution. Chiseling/fallow resulted in higher nitrogen leaching as compared with non-fixing N cover crops. Even when N is not applied, it is important to intensify cropping systems in tropical environments using cover crops with vigorous root systems and high N demand, which prevent N leaching, as well as provides N to the following crop as the straw is mineralized.Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Sao Paulo State Univ, Coll Agr Sci, Botucatu, SP, BrazilSao Paulo State Univ, Coll Agr Sci, Botucatu, SP, BrazilFAPESP: 2011/02117-7SpringerUniversidade Estadual Paulista (Unesp)Rosolem, Ciro A. [UNESP]Castoldi, Gustavo [UNESP]Pivetta, Laercio A. [UNESP]Ochsner, Tyson E. [UNESP]2018-11-26T15:47:37Z2018-11-26T15:47:37Z2018-02-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article27-40application/pdfhttp://dx.doi.org/10.1007/s11104-017-3494-4Plant And Soil. Dordrecht: Springer, v. 423, n. 1-2, p. 27-40, 2018.0032-079Xhttp://hdl.handle.net/11449/16014010.1007/s11104-017-3494-4WOS:000426723800003WOS000426723800003.pdf57207758732595280000-0003-2001-0874Web of Sciencereponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengPlant And Soilinfo:eu-repo/semantics/openAccess2023-10-16T06:08:58Zoai:repositorio.unesp.br:11449/160140Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462023-10-16T06:08:58Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Nitrate leaching in soybean rotations without nitrogen fertilizer |
title |
Nitrate leaching in soybean rotations without nitrogen fertilizer |
spellingShingle |
Nitrate leaching in soybean rotations without nitrogen fertilizer Rosolem, Ciro A. [UNESP] Nitrate Sunn hemp Grain sorghum Pearl millet Drainage No-till |
title_short |
Nitrate leaching in soybean rotations without nitrogen fertilizer |
title_full |
Nitrate leaching in soybean rotations without nitrogen fertilizer |
title_fullStr |
Nitrate leaching in soybean rotations without nitrogen fertilizer |
title_full_unstemmed |
Nitrate leaching in soybean rotations without nitrogen fertilizer |
title_sort |
Nitrate leaching in soybean rotations without nitrogen fertilizer |
author |
Rosolem, Ciro A. [UNESP] |
author_facet |
Rosolem, Ciro A. [UNESP] Castoldi, Gustavo [UNESP] Pivetta, Laercio A. [UNESP] Ochsner, Tyson E. [UNESP] |
author_role |
author |
author2 |
Castoldi, Gustavo [UNESP] Pivetta, Laercio A. [UNESP] Ochsner, Tyson E. [UNESP] |
author2_role |
author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) |
dc.contributor.author.fl_str_mv |
Rosolem, Ciro A. [UNESP] Castoldi, Gustavo [UNESP] Pivetta, Laercio A. [UNESP] Ochsner, Tyson E. [UNESP] |
dc.subject.por.fl_str_mv |
Nitrate Sunn hemp Grain sorghum Pearl millet Drainage No-till |
topic |
Nitrate Sunn hemp Grain sorghum Pearl millet Drainage No-till |
description |
Nitrate leaching is a primary pathway of nitrogen loss from agricultural systems, and is affected by both tillage and cropped species. However, there is little information on conservation systems without nitrogen fertilization. Nitrate leaching was assessed in soybean (Glycine max) cropped in rotation with the following cover crops under no-till and chiseling: ruzigrass (Brachiaria ruziziensis), grain sorghum (Sorghum bicolor), pearl millet (Pennisetum glaucum), forage sorghum (Sorghum bicolor), Sunn hemp (Crotalaria juncea), triticale (X Triticosecale) and sunflower (Helianthus annuus). Ruzigrass and grain sorghum cropped in the fall/winter resulted in similar NO3 (-) leaching, which was greater under sunflower than under triticale, likely due to high N uptake and immobilization in plant residues. Sunn hemp as a spring crop resulted in higher NO3 (-) leaching than pearl millet at two locations and forage sorghum at one location likely due to a higher N input by biological fixation. Millet resulted in the lowest N leaching by depleting the soil solution. Chiseling/fallow resulted in higher nitrogen leaching as compared with non-fixing N cover crops. Even when N is not applied, it is important to intensify cropping systems in tropical environments using cover crops with vigorous root systems and high N demand, which prevent N leaching, as well as provides N to the following crop as the straw is mineralized. |
publishDate |
2018 |
dc.date.none.fl_str_mv |
2018-11-26T15:47:37Z 2018-11-26T15:47:37Z 2018-02-01 |
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/10.1007/s11104-017-3494-4 Plant And Soil. Dordrecht: Springer, v. 423, n. 1-2, p. 27-40, 2018. 0032-079X http://hdl.handle.net/11449/160140 10.1007/s11104-017-3494-4 WOS:000426723800003 WOS000426723800003.pdf 5720775873259528 0000-0003-2001-0874 |
url |
http://dx.doi.org/10.1007/s11104-017-3494-4 http://hdl.handle.net/11449/160140 |
identifier_str_mv |
Plant And Soil. Dordrecht: Springer, v. 423, n. 1-2, p. 27-40, 2018. 0032-079X 10.1007/s11104-017-3494-4 WOS:000426723800003 WOS000426723800003.pdf 5720775873259528 0000-0003-2001-0874 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Plant And Soil |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
27-40 application/pdf |
dc.publisher.none.fl_str_mv |
Springer |
publisher.none.fl_str_mv |
Springer |
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_ |
1799964589010452480 |