Nitrogen requirements for growth and early fruit development of drip-irrigated processing tomato (Lycopersicon esculentum Mill.) in Portugal

Detalhes bibliográficos
Autor(a) principal: Machado, Rui
Data de Publicação: 2008
Outros Autores: Bryla, David, Oliveira, Maria
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10174/1924
Resumo: Nitrogen requirements for growth and early fruit development of drip-irrigated processing tomato (Lycopersicon esculentum Mill.) in Portugal Rui M.A. Machado 1*, David R. Bryla 2, M.L. Veríssimo 1, A.M. Sena 1 and M.R.G. Oliveira 1 1Universidade de Évora, Instituto de Ciências Agrárias Mediterrânicas (ICAM), Apartado 94, 7002-554, Évora, Portugal. 2United States Department of Agriculture, Agricultural Research Service, Horticultural Crops Research Unit, 3420 NW Orchard Avenue, Corvallis, Oregon, USA. *e-mail: rmam@uevora.pt, david.bryla@ars.usda.gov Received 19 May 2008, accepted 8 September 2008. Abstract The effect of continuous application of small quantities of nitrogen (N) in irrigation water and N applied as starter on growth and development of processing tomato, from transplanting to beginning of fruit set, was studied in two experiments — a pot experiment and a field trial. The pot experiment was carried out with eight treatments, including two soil types and four levels of N application (13.2, 18.2, 28.2 and 48.2 mg/L of N). The field trial consisted of four N treatments, including a control with only 6.4 mg/L of N available naturally in the irrigation water, 15 kg/ha of N applied at pre-plant, 15 kg/ha of N applied at pre-plant plus 20 mg/L of N applied continuously during irrigation, and 15 kg ha-1 N applied at pre- plant plus 40 mg/L of N applied continuously during irrigation. Plant growth was significantly affected by soil type and N level under controlled conditions, increasing linearly in luvisol (sandy loam) and regosol (sand) soil at an average rate of 0.52 and 0.64 g dry weight per mg N in the irrigation water, respectively. However, under field conditions in luvisol soil, additional N, whether added at pre-plant or continuously during irrigation, had no effect on any measure of aboveground plant growth, including leaf area, plant dry weight or early fruit production, but reduced root length density below ground. Overall, N in the irrigation water was sufficient for the young tomato plants between planting and fruit set, and adding more N at pre-plant or by fertigation only resulted in luxury N consumption.
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spelling Nitrogen requirements for growth and early fruit development of drip-irrigated processing tomato (Lycopersicon esculentum Mill.) in Portugalprocessing tomatonitrogendrip irrigationroot length densityNitrogen requirements for growth and early fruit development of drip-irrigated processing tomato (Lycopersicon esculentum Mill.) in Portugal Rui M.A. Machado 1*, David R. Bryla 2, M.L. Veríssimo 1, A.M. Sena 1 and M.R.G. Oliveira 1 1Universidade de Évora, Instituto de Ciências Agrárias Mediterrânicas (ICAM), Apartado 94, 7002-554, Évora, Portugal. 2United States Department of Agriculture, Agricultural Research Service, Horticultural Crops Research Unit, 3420 NW Orchard Avenue, Corvallis, Oregon, USA. *e-mail: rmam@uevora.pt, david.bryla@ars.usda.gov Received 19 May 2008, accepted 8 September 2008. Abstract The effect of continuous application of small quantities of nitrogen (N) in irrigation water and N applied as starter on growth and development of processing tomato, from transplanting to beginning of fruit set, was studied in two experiments — a pot experiment and a field trial. The pot experiment was carried out with eight treatments, including two soil types and four levels of N application (13.2, 18.2, 28.2 and 48.2 mg/L of N). The field trial consisted of four N treatments, including a control with only 6.4 mg/L of N available naturally in the irrigation water, 15 kg/ha of N applied at pre-plant, 15 kg/ha of N applied at pre-plant plus 20 mg/L of N applied continuously during irrigation, and 15 kg ha-1 N applied at pre- plant plus 40 mg/L of N applied continuously during irrigation. Plant growth was significantly affected by soil type and N level under controlled conditions, increasing linearly in luvisol (sandy loam) and regosol (sand) soil at an average rate of 0.52 and 0.64 g dry weight per mg N in the irrigation water, respectively. However, under field conditions in luvisol soil, additional N, whether added at pre-plant or continuously during irrigation, had no effect on any measure of aboveground plant growth, including leaf area, plant dry weight or early fruit production, but reduced root length density below ground. Overall, N in the irrigation water was sufficient for the young tomato plants between planting and fruit set, and adding more N at pre-plant or by fertigation only resulted in luxury N consumption.WFL Publisher Science and Technology2010-03-09T16:48:25Z2010-03-092008-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article258397 bytesapplication/pdfhttp://hdl.handle.net/10174/1924http://hdl.handle.net/10174/1924engJournal of Food, Agriculture & EnvironmentVol.6 (3&4)livrehttp://www.world-food.net/scientficjournal/2008/issue3/pdf/agriculture/a7.pdf WFL Publisher Science & Technology Publish Your Article Recommend this Scientific Journal to Your Library or Department Journal Contents Back Next Nitrogen requirements for growth and early fruit development of drip-irrigated processing tomato (Lycopersicon esculentum Mill.) in Portugal Author: Rui M.A. Machado 1*, David R. Bryla 2, M.L. Veríssimo 1, A.M. Sena 1 and M.R.G. Oliveira 1 Received 19 May 2008, accepted 8 September 2008. Abstract The effect of continuous application of small quantities of nitrogen (N) in irrigation water and N applied as starter on growth and development of processing tomato, from transplanting to beginning of fruit set, was studied in two experiments — a pot experiment and a field trial. The pot experiment was carried out with eight treatments, including two soil types and four levels of N application (13.2, 18.2, 28.2 and 48.2 mg/L of N). The field trial consisted of four N treatments, including a control with only 6.4 mg/L of N available naturally in the irrigation water, 15 kg/ha of N applied at pre-plant, 15 kg/ha of N applied at pre-plant plus 20 mg/L of N applied continuously during irrigation, and 15 kg ha-1 N applied at pre-plant plus 40 mg/L of N applied continuously during irrigation. Plant growth was significantly affected by soil type and N level under controlled conditions, increasing linearly in luvisol (sandy loam) and regosol (sand) soil at an average rate of 0.52 and 0.64 g dry weight per mg N in the irrigation water, respectively. However, under field conditions in luvisol soil, additional N, whether added at pre-plant or continuously during irrigation, had no effect on any measure of aboveground plant growth, including leaf area, plant dry weight or early fruit production, but reduced root length density below ground. Overall, N in the irrigation water was sufficient for the young tomato plants between planting and fruit set, and adding more N at pre-plant or by fertigation only resulted in luxury N consumption. Key words: Lycopersicon esculentum, drip irrigation, luxury consumption, nitrogen fertilizer, root length density. [FULL text for subscribers] Journal: Food, Agriculture & Environment (JFAE) Online ISSN: 1459-0263 Year: 2008, Vol. 6, Issue 3&4, pages 215-218. Publisher: WFL -------------------------------------------------------------------------------- Article Purchasing If you would like to buy just this specific document (article, review or this journal issue), thus take contact with the Editorial Office. Please specify the title of the article or review, issue, number and volume. Software and compilation © 2002 Science & Technology. All rights reserved. Your use of this service is governed by Terms and Conditions. Please review our copyright Policy for details on how we protect information that you supply. Note to Users The section "Articles in Press" contains peer reviewed and accepted articles to be published in the print and/or online journal. The requested document is freely available only to registered users with an online subscription to Food, Agriculture & Environment. If you have set up a personal subscription to this title please enter your user name and password. Copyright © 2002 Published by WFL Publisher/World Food Rd Oy. All rights reserved. © Meri-Rastilantie 3 B, FIN-00980 Helsinki, Finland Tel/fax: +358 9 75 92 775. e-mail: info (at) world-food.net Buy this Article Publish your Work Make an Announcement or Advertise -------------------------------------------------------------------------------- Nitrogen requirements for growth and early fruit development of drip-irrigated processing tomato (Lycopersicon esculentum Mill.) in Portugal Author: Rui M.A. Machado 1*, David R. Bryla 2, M.L. Veríssimo 1, A.M. Sena 1 and M.R.G. Oliveira 1 Received 19 May 2008, accepted 8 September 2008. Abstract The effect of continuous application of small quantities of nitrogen (N) in irrigation water and N applied as starter on growth and development of processing tomato, from transplanting to beginning of fruit set, was studied in two experiments — a pot experiment and a field trial. The pot experiment was carried out with eight treatments, including two soil types and four levels of N application (13.2, 18.2, 28.2 and 48.2 mg/L of N). The field trial consisted of four N treatments, including a control with only 6.4 mg/L of N available naturally in the irrigation water, 15 kg/ha of N applied at pre-plant, 15 kg/ha of N applied at pre-plant plus 20 mg/L of N applied continuously during irrigation, and 15 kg ha-1 N applied at pre-plant plus 40 mg/L of N applied continuously during irrigation. Plant growth was significantly affected by soil type and N level under controlled conditions, increasing linearly in luvisol (sandy loam) and regosol (sand) soil at an average rate of 0.52 and 0.64 g dry weight per mg N in the irrigation water, respectively. However, under field conditions in luvisol soil, additional N, whether added at pre-plant or continuously during irrigation, had no effect on any measure of aboveground plant growth, including leaf area, plant dry weight or early fruit production, but reduced root length density below ground. Overall, N in the irrigation water was sufficient for the young tomato plants between planting and fruit set, and adding more N at pre-plant or by fertigation only resulted in luxury N consumption. Key words: Lycopersicon esculentum, drip irrigation, luxury consumption, nitrogen fertilizer, root length density. [FULL text for subscribers] Journal: Food, Agriculture & Environment (JFAE) Online ISSN: 1459-0263 Year: 2008, Vol. 6, Issue 3&4, pages 215-218. Publisher: WFLrmam@uevora.ptndnd582Machado, RuiBryla, DavidOliveira, Mariainfo:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2024-01-03T18:37:52Zoai:dspace.uevora.pt:10174/1924Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T00:57:42.314911Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse
dc.title.none.fl_str_mv Nitrogen requirements for growth and early fruit development of drip-irrigated processing tomato (Lycopersicon esculentum Mill.) in Portugal
title Nitrogen requirements for growth and early fruit development of drip-irrigated processing tomato (Lycopersicon esculentum Mill.) in Portugal
spellingShingle Nitrogen requirements for growth and early fruit development of drip-irrigated processing tomato (Lycopersicon esculentum Mill.) in Portugal
Machado, Rui
processing tomato
nitrogen
drip irrigation
root length density
title_short Nitrogen requirements for growth and early fruit development of drip-irrigated processing tomato (Lycopersicon esculentum Mill.) in Portugal
title_full Nitrogen requirements for growth and early fruit development of drip-irrigated processing tomato (Lycopersicon esculentum Mill.) in Portugal
title_fullStr Nitrogen requirements for growth and early fruit development of drip-irrigated processing tomato (Lycopersicon esculentum Mill.) in Portugal
title_full_unstemmed Nitrogen requirements for growth and early fruit development of drip-irrigated processing tomato (Lycopersicon esculentum Mill.) in Portugal
title_sort Nitrogen requirements for growth and early fruit development of drip-irrigated processing tomato (Lycopersicon esculentum Mill.) in Portugal
author Machado, Rui
author_facet Machado, Rui
Bryla, David
Oliveira, Maria
author_role author
author2 Bryla, David
Oliveira, Maria
author2_role author
author
dc.contributor.author.fl_str_mv Machado, Rui
Bryla, David
Oliveira, Maria
dc.subject.por.fl_str_mv processing tomato
nitrogen
drip irrigation
root length density
topic processing tomato
nitrogen
drip irrigation
root length density
description Nitrogen requirements for growth and early fruit development of drip-irrigated processing tomato (Lycopersicon esculentum Mill.) in Portugal Rui M.A. Machado 1*, David R. Bryla 2, M.L. Veríssimo 1, A.M. Sena 1 and M.R.G. Oliveira 1 1Universidade de Évora, Instituto de Ciências Agrárias Mediterrânicas (ICAM), Apartado 94, 7002-554, Évora, Portugal. 2United States Department of Agriculture, Agricultural Research Service, Horticultural Crops Research Unit, 3420 NW Orchard Avenue, Corvallis, Oregon, USA. *e-mail: rmam@uevora.pt, david.bryla@ars.usda.gov Received 19 May 2008, accepted 8 September 2008. Abstract The effect of continuous application of small quantities of nitrogen (N) in irrigation water and N applied as starter on growth and development of processing tomato, from transplanting to beginning of fruit set, was studied in two experiments — a pot experiment and a field trial. The pot experiment was carried out with eight treatments, including two soil types and four levels of N application (13.2, 18.2, 28.2 and 48.2 mg/L of N). The field trial consisted of four N treatments, including a control with only 6.4 mg/L of N available naturally in the irrigation water, 15 kg/ha of N applied at pre-plant, 15 kg/ha of N applied at pre-plant plus 20 mg/L of N applied continuously during irrigation, and 15 kg ha-1 N applied at pre- plant plus 40 mg/L of N applied continuously during irrigation. Plant growth was significantly affected by soil type and N level under controlled conditions, increasing linearly in luvisol (sandy loam) and regosol (sand) soil at an average rate of 0.52 and 0.64 g dry weight per mg N in the irrigation water, respectively. However, under field conditions in luvisol soil, additional N, whether added at pre-plant or continuously during irrigation, had no effect on any measure of aboveground plant growth, including leaf area, plant dry weight or early fruit production, but reduced root length density below ground. Overall, N in the irrigation water was sufficient for the young tomato plants between planting and fruit set, and adding more N at pre-plant or by fertigation only resulted in luxury N consumption.
publishDate 2008
dc.date.none.fl_str_mv 2008-01-01T00:00:00Z
2010-03-09T16:48:25Z
2010-03-09
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dc.identifier.uri.fl_str_mv http://hdl.handle.net/10174/1924
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url http://hdl.handle.net/10174/1924
dc.language.iso.fl_str_mv eng
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dc.relation.none.fl_str_mv Journal of Food, Agriculture & Environment
Vol.6 (3&4)
livre
http://www.world-food.net/scientficjournal/2008/issue3/pdf/agriculture/a7.pdf WFL Publisher Science & Technology Publish Your Article Recommend this Scientific Journal to Your Library or Department Journal Contents Back Next Nitrogen requirements for growth and early fruit development of drip-irrigated processing tomato (Lycopersicon esculentum Mill.) in Portugal Author: Rui M.A. Machado 1*, David R. Bryla 2, M.L. Veríssimo 1, A.M. Sena 1 and M.R.G. Oliveira 1 Received 19 May 2008, accepted 8 September 2008. Abstract The effect of continuous application of small quantities of nitrogen (N) in irrigation water and N applied as starter on growth and development of processing tomato, from transplanting to beginning of fruit set, was studied in two experiments — a pot experiment and a field trial. The pot experiment was carried out with eight treatments, including two soil types and four levels of N application (13.2, 18.2, 28.2 and 48.2 mg/L of N). The field trial consisted of four N treatments, including a control with only 6.4 mg/L of N available naturally in the irrigation water, 15 kg/ha of N applied at pre-plant, 15 kg/ha of N applied at pre-plant plus 20 mg/L of N applied continuously during irrigation, and 15 kg ha-1 N applied at pre-plant plus 40 mg/L of N applied continuously during irrigation. Plant growth was significantly affected by soil type and N level under controlled conditions, increasing linearly in luvisol (sandy loam) and regosol (sand) soil at an average rate of 0.52 and 0.64 g dry weight per mg N in the irrigation water, respectively. However, under field conditions in luvisol soil, additional N, whether added at pre-plant or continuously during irrigation, had no effect on any measure of aboveground plant growth, including leaf area, plant dry weight or early fruit production, but reduced root length density below ground. Overall, N in the irrigation water was sufficient for the young tomato plants between planting and fruit set, and adding more N at pre-plant or by fertigation only resulted in luxury N consumption. Key words: Lycopersicon esculentum, drip irrigation, luxury consumption, nitrogen fertilizer, root length density. [FULL text for subscribers] Journal: Food, Agriculture & Environment (JFAE) Online ISSN: 1459-0263 Year: 2008, Vol. 6, Issue 3&4, pages 215-218. Publisher: WFL -------------------------------------------------------------------------------- Article Purchasing If you would like to buy just this specific document (article, review or this journal issue), thus take contact with the Editorial Office. Please specify the title of the article or review, issue, number and volume. Software and compilation © 2002 Science & Technology. All rights reserved. Your use of this service is governed by Terms and Conditions. Please review our copyright Policy for details on how we protect information that you supply. Note to Users The section "Articles in Press" contains peer reviewed and accepted articles to be published in the print and/or online journal. The requested document is freely available only to registered users with an online subscription to Food, Agriculture & Environment. If you have set up a personal subscription to this title please enter your user name and password. Copyright © 2002 Published by WFL Publisher/World Food Rd Oy. All rights reserved. © Meri-Rastilantie 3 B, FIN-00980 Helsinki, Finland Tel/fax: +358 9 75 92 775. e-mail: info (at) world-food.net Buy this Article Publish your Work Make an Announcement or Advertise -------------------------------------------------------------------------------- Nitrogen requirements for growth and early fruit development of drip-irrigated processing tomato (Lycopersicon esculentum Mill.) in Portugal Author: Rui M.A. Machado 1*, David R. Bryla 2, M.L. Veríssimo 1, A.M. Sena 1 and M.R.G. Oliveira 1 Received 19 May 2008, accepted 8 September 2008. Abstract The effect of continuous application of small quantities of nitrogen (N) in irrigation water and N applied as starter on growth and development of processing tomato, from transplanting to beginning of fruit set, was studied in two experiments — a pot experiment and a field trial. The pot experiment was carried out with eight treatments, including two soil types and four levels of N application (13.2, 18.2, 28.2 and 48.2 mg/L of N). The field trial consisted of four N treatments, including a control with only 6.4 mg/L of N available naturally in the irrigation water, 15 kg/ha of N applied at pre-plant, 15 kg/ha of N applied at pre-plant plus 20 mg/L of N applied continuously during irrigation, and 15 kg ha-1 N applied at pre-plant plus 40 mg/L of N applied continuously during irrigation. Plant growth was significantly affected by soil type and N level under controlled conditions, increasing linearly in luvisol (sandy loam) and regosol (sand) soil at an average rate of 0.52 and 0.64 g dry weight per mg N in the irrigation water, respectively. However, under field conditions in luvisol soil, additional N, whether added at pre-plant or continuously during irrigation, had no effect on any measure of aboveground plant growth, including leaf area, plant dry weight or early fruit production, but reduced root length density below ground. Overall, N in the irrigation water was sufficient for the young tomato plants between planting and fruit set, and adding more N at pre-plant or by fertigation only resulted in luxury N consumption. Key words: Lycopersicon esculentum, drip irrigation, luxury consumption, nitrogen fertilizer, root length density. [FULL text for subscribers] Journal: Food, Agriculture & Environment (JFAE) Online ISSN: 1459-0263 Year: 2008, Vol. 6, Issue 3&4, pages 215-218. Publisher: WFL
rmam@uevora.pt
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