Fertigation with micronized Sulfur rapidly reduces soil pH
Autor(a) principal: | |
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Data de Publicação: | 2013 |
Outros Autores: | , |
Tipo de documento: | Artigo de conferência |
Idioma: | por |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/10174/8725 |
Resumo: | Blueberry is adapted to low soil pH in the range of 4-5.5. At higher pH, soil is often modified with elemental sulfur (S) prior to planting. A 2-year study was conducted to determine the potential of applying micronized wettable S by fertigation through the drip system to reduce soil pH in highbush blueberry. The field was planted in October 2010. The S was mixed with water and injected weekly for 2 months prior to planting and each fall after planting (2011 and 2012), at rates of 0, 50, 100 and 150 kg/ha per year, and was compared to the standard practice of incorporating granular S into the soil prior to planting (two applications of 800 kg/ha each). Sulfur fertigation quickly reduced soil pH (0-10 cm) within a month from 6.6 with no S to 5.8 with 100-150 kg/ha S, but the change was short-term and by December averaged 6.2 and 6.0, respectively. Conventional granular S, in comparison, averaged 6.4 on the first date and 6.1 on the second. In July the following year, soil pH ranged from 6.5 with no S to 6.1 with 150 kg/ha and averaged 6.0 with granular S. Soil pH remained relatively constant thereafter with S fertigation but continued to decline to levels as low as 4.7 with granular S. The treatments had no effect on winter pruning weight in year 1 or on total plant dry weight, yield, or average individual berry weight in year 2. Leaf P, K, Ca, Mg, S, and Mn concentrations, on the other hand, were lower with S fertigation than with granular S during the first year after planting, while leaf N, P, and S were lower with S fertigation the second year. The findings indicate that S fertigation can be used to reduce soil pH following planting in blueberry and therefore may be a useful practice and safer than acids to correct problems with high pH. However, it was less effective and more time consuming than applying granular S prior to planting. |
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Fertigation with micronized Sulfur rapidly reduces soil pHFertigationMicronized sulfurBlueberryFertirregaEnxofre molhávelMirtilosSoil pHpH do soloBlueberry is adapted to low soil pH in the range of 4-5.5. At higher pH, soil is often modified with elemental sulfur (S) prior to planting. A 2-year study was conducted to determine the potential of applying micronized wettable S by fertigation through the drip system to reduce soil pH in highbush blueberry. The field was planted in October 2010. The S was mixed with water and injected weekly for 2 months prior to planting and each fall after planting (2011 and 2012), at rates of 0, 50, 100 and 150 kg/ha per year, and was compared to the standard practice of incorporating granular S into the soil prior to planting (two applications of 800 kg/ha each). Sulfur fertigation quickly reduced soil pH (0-10 cm) within a month from 6.6 with no S to 5.8 with 100-150 kg/ha S, but the change was short-term and by December averaged 6.2 and 6.0, respectively. Conventional granular S, in comparison, averaged 6.4 on the first date and 6.1 on the second. In July the following year, soil pH ranged from 6.5 with no S to 6.1 with 150 kg/ha and averaged 6.0 with granular S. Soil pH remained relatively constant thereafter with S fertigation but continued to decline to levels as low as 4.7 with granular S. The treatments had no effect on winter pruning weight in year 1 or on total plant dry weight, yield, or average individual berry weight in year 2. Leaf P, K, Ca, Mg, S, and Mn concentrations, on the other hand, were lower with S fertigation than with granular S during the first year after planting, while leaf N, P, and S were lower with S fertigation the second year. The findings indicate that S fertigation can be used to reduce soil pH following planting in blueberry and therefore may be a useful practice and safer than acids to correct problems with high pH. However, it was less effective and more time consuming than applying granular S prior to planting.Hortscience (Abstract only)2013-09-06T09:51:22Z2013-09-062013-06-22T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/conferenceObjecthttp://hdl.handle.net/10174/8725http://hdl.handle.net/10174/8725pornaonaosimICAAMndndrmam@uevora.pt582Almutairi, KhalidBryla, DavidMachado, Ruiinfo: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:RCAAP2024-01-03T18:50:07Zoai:dspace.uevora.pt:10174/8725Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T01:02:58.736416Repositório 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 |
Fertigation with micronized Sulfur rapidly reduces soil pH |
title |
Fertigation with micronized Sulfur rapidly reduces soil pH |
spellingShingle |
Fertigation with micronized Sulfur rapidly reduces soil pH Almutairi, Khalid Fertigation Micronized sulfur Blueberry Fertirrega Enxofre molhável Mirtilos Soil pH pH do solo |
title_short |
Fertigation with micronized Sulfur rapidly reduces soil pH |
title_full |
Fertigation with micronized Sulfur rapidly reduces soil pH |
title_fullStr |
Fertigation with micronized Sulfur rapidly reduces soil pH |
title_full_unstemmed |
Fertigation with micronized Sulfur rapidly reduces soil pH |
title_sort |
Fertigation with micronized Sulfur rapidly reduces soil pH |
author |
Almutairi, Khalid |
author_facet |
Almutairi, Khalid Bryla, David Machado, Rui |
author_role |
author |
author2 |
Bryla, David Machado, Rui |
author2_role |
author author |
dc.contributor.author.fl_str_mv |
Almutairi, Khalid Bryla, David Machado, Rui |
dc.subject.por.fl_str_mv |
Fertigation Micronized sulfur Blueberry Fertirrega Enxofre molhável Mirtilos Soil pH pH do solo |
topic |
Fertigation Micronized sulfur Blueberry Fertirrega Enxofre molhável Mirtilos Soil pH pH do solo |
description |
Blueberry is adapted to low soil pH in the range of 4-5.5. At higher pH, soil is often modified with elemental sulfur (S) prior to planting. A 2-year study was conducted to determine the potential of applying micronized wettable S by fertigation through the drip system to reduce soil pH in highbush blueberry. The field was planted in October 2010. The S was mixed with water and injected weekly for 2 months prior to planting and each fall after planting (2011 and 2012), at rates of 0, 50, 100 and 150 kg/ha per year, and was compared to the standard practice of incorporating granular S into the soil prior to planting (two applications of 800 kg/ha each). Sulfur fertigation quickly reduced soil pH (0-10 cm) within a month from 6.6 with no S to 5.8 with 100-150 kg/ha S, but the change was short-term and by December averaged 6.2 and 6.0, respectively. Conventional granular S, in comparison, averaged 6.4 on the first date and 6.1 on the second. In July the following year, soil pH ranged from 6.5 with no S to 6.1 with 150 kg/ha and averaged 6.0 with granular S. Soil pH remained relatively constant thereafter with S fertigation but continued to decline to levels as low as 4.7 with granular S. The treatments had no effect on winter pruning weight in year 1 or on total plant dry weight, yield, or average individual berry weight in year 2. Leaf P, K, Ca, Mg, S, and Mn concentrations, on the other hand, were lower with S fertigation than with granular S during the first year after planting, while leaf N, P, and S were lower with S fertigation the second year. The findings indicate that S fertigation can be used to reduce soil pH following planting in blueberry and therefore may be a useful practice and safer than acids to correct problems with high pH. However, it was less effective and more time consuming than applying granular S prior to planting. |
publishDate |
2013 |
dc.date.none.fl_str_mv |
2013-09-06T09:51:22Z 2013-09-06 2013-06-22T00:00:00Z |
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 |
http://hdl.handle.net/10174/8725 http://hdl.handle.net/10174/8725 |
url |
http://hdl.handle.net/10174/8725 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
nao nao sim ICAAM nd nd rmam@uevora.pt 582 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.publisher.none.fl_str_mv |
Hortscience (Abstract only) |
publisher.none.fl_str_mv |
Hortscience (Abstract only) |
dc.source.none.fl_str_mv |
reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
instname_str |
Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
instacron_str |
RCAAP |
institution |
RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
collection |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository.name.fl_str_mv |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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