Water table effects on bean yield and nitrate distribution in the soil profile
Autor(a) principal: | |
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Data de Publicação: | 2004 |
Outros Autores: | |
Tipo de documento: | Artigo de conferência |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://hdl.handle.net/11449/68073 |
Resumo: | In order to evaluate the bean yield under different water table levels as well as the moisture and nitrate distribution in the soil profile, a field experiment was carried out at the experimental area from the College of Agronomic Sciences - UNESP, Botucatu, SP, Brazil. Beans were grown in field lysimeters and subjected to five water table depths:30; 40; 50; 60 and 70 cm. The moisture in the soil profile was gravimetrically determined through samples obtained at 10; 20; 30; 40; 50; 60 and 70cm of depth. The water table depths of 30cm and 40cm showed the highest productivities (3,228.4 kg.ha-1 and 3,422.1 kg.ha-1, respectively), showing no statistical differences between each other. The highest productivity was related to the two most elevated water table levels (30 and 40cm), which provided the highest moisture average values on basis of volume in the soil profile (33.3 e 31%) as well as the consumptive use of water (416 and 396 mm). The nitrate content during the bean cycle at the extraction depth of 60cm has been under the safe drinking limit of 10 mg.1-1 for water table depths of 30; 40; 50 and 60cm, showing the denitrification effectiveness as a way of controlling water table from nitrate pollution. The water table handling allowed the attainment of high bean productivity levels, as well as the reduction of the nitrate level. |
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Water table effects on bean yield and nitrate distribution in the soil profileBeanDenitrificationLysimetersNitrateSoil moistureWater tableAgronomyNitratesSoilsWater analysisBean cycleNitrate levelsCropsCeratoniaSoilWater TableIn order to evaluate the bean yield under different water table levels as well as the moisture and nitrate distribution in the soil profile, a field experiment was carried out at the experimental area from the College of Agronomic Sciences - UNESP, Botucatu, SP, Brazil. Beans were grown in field lysimeters and subjected to five water table depths:30; 40; 50; 60 and 70 cm. The moisture in the soil profile was gravimetrically determined through samples obtained at 10; 20; 30; 40; 50; 60 and 70cm of depth. The water table depths of 30cm and 40cm showed the highest productivities (3,228.4 kg.ha-1 and 3,422.1 kg.ha-1, respectively), showing no statistical differences between each other. The highest productivity was related to the two most elevated water table levels (30 and 40cm), which provided the highest moisture average values on basis of volume in the soil profile (33.3 e 31%) as well as the consumptive use of water (416 and 396 mm). The nitrate content during the bean cycle at the extraction depth of 60cm has been under the safe drinking limit of 10 mg.1-1 for water table depths of 30; 40; 50 and 60cm, showing the denitrification effectiveness as a way of controlling water table from nitrate pollution. The water table handling allowed the attainment of high bean productivity levels, as well as the reduction of the nitrate level.School of Agronomic Sciences Sao Paulo State University, C.P. 237, 18603-970, Botucatu, SPSchool of Agronomic Sciences Sao Paulo State University, C.P. 237, 18603-970, Botucatu, SPUniversidade Estadual Paulista (Unesp)Saad, João Carlos Cury [UNESP]Calegaro, J. C. [UNESP]2014-05-27T11:21:15Z2014-05-27T11:21:15Z2004-12-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/conferenceObject419-428Proceedings of the 8th International Drainage Symposium - Drainage VIII, p. 419-428.http://hdl.handle.net/11449/680732-s2.0-27844495841Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengProceedings of the 8th International Drainage Symposium - Drainage VIIIinfo:eu-repo/semantics/openAccess2024-04-30T14:03:00Zoai:repositorio.unesp.br:11449/68073Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T22:44:19.401573Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Water table effects on bean yield and nitrate distribution in the soil profile |
title |
Water table effects on bean yield and nitrate distribution in the soil profile |
spellingShingle |
Water table effects on bean yield and nitrate distribution in the soil profile Saad, João Carlos Cury [UNESP] Bean Denitrification Lysimeters Nitrate Soil moisture Water table Agronomy Nitrates Soils Water analysis Bean cycle Nitrate levels Crops Ceratonia Soil Water Table |
title_short |
Water table effects on bean yield and nitrate distribution in the soil profile |
title_full |
Water table effects on bean yield and nitrate distribution in the soil profile |
title_fullStr |
Water table effects on bean yield and nitrate distribution in the soil profile |
title_full_unstemmed |
Water table effects on bean yield and nitrate distribution in the soil profile |
title_sort |
Water table effects on bean yield and nitrate distribution in the soil profile |
author |
Saad, João Carlos Cury [UNESP] |
author_facet |
Saad, João Carlos Cury [UNESP] Calegaro, J. C. [UNESP] |
author_role |
author |
author2 |
Calegaro, J. C. [UNESP] |
author2_role |
author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) |
dc.contributor.author.fl_str_mv |
Saad, João Carlos Cury [UNESP] Calegaro, J. C. [UNESP] |
dc.subject.por.fl_str_mv |
Bean Denitrification Lysimeters Nitrate Soil moisture Water table Agronomy Nitrates Soils Water analysis Bean cycle Nitrate levels Crops Ceratonia Soil Water Table |
topic |
Bean Denitrification Lysimeters Nitrate Soil moisture Water table Agronomy Nitrates Soils Water analysis Bean cycle Nitrate levels Crops Ceratonia Soil Water Table |
description |
In order to evaluate the bean yield under different water table levels as well as the moisture and nitrate distribution in the soil profile, a field experiment was carried out at the experimental area from the College of Agronomic Sciences - UNESP, Botucatu, SP, Brazil. Beans were grown in field lysimeters and subjected to five water table depths:30; 40; 50; 60 and 70 cm. The moisture in the soil profile was gravimetrically determined through samples obtained at 10; 20; 30; 40; 50; 60 and 70cm of depth. The water table depths of 30cm and 40cm showed the highest productivities (3,228.4 kg.ha-1 and 3,422.1 kg.ha-1, respectively), showing no statistical differences between each other. The highest productivity was related to the two most elevated water table levels (30 and 40cm), which provided the highest moisture average values on basis of volume in the soil profile (33.3 e 31%) as well as the consumptive use of water (416 and 396 mm). The nitrate content during the bean cycle at the extraction depth of 60cm has been under the safe drinking limit of 10 mg.1-1 for water table depths of 30; 40; 50 and 60cm, showing the denitrification effectiveness as a way of controlling water table from nitrate pollution. The water table handling allowed the attainment of high bean productivity levels, as well as the reduction of the nitrate level. |
publishDate |
2004 |
dc.date.none.fl_str_mv |
2004-12-01 2014-05-27T11:21:15Z 2014-05-27T11:21:15Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/conferenceObject |
format |
conferenceObject |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
Proceedings of the 8th International Drainage Symposium - Drainage VIII, p. 419-428. http://hdl.handle.net/11449/68073 2-s2.0-27844495841 |
identifier_str_mv |
Proceedings of the 8th International Drainage Symposium - Drainage VIII, p. 419-428. 2-s2.0-27844495841 |
url |
http://hdl.handle.net/11449/68073 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Proceedings of the 8th International Drainage Symposium - Drainage VIII |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
419-428 |
dc.source.none.fl_str_mv |
Scopus 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_ |
1808129456865280000 |