Growth, yield and nutrition of sugarcane ratoon as affected by potassium in a mechanized harvesting system
Autor(a) principal: | |
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Data de Publicação: | 2015 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://hdl.handle.net/11449/220486 |
Resumo: | Sugarcane mechanical harvest deposes straw residue on the soil surface, increases soil organic matter and improves nutrients cycling, especially potassium (K). The objective of this work was to evaluate the effect of K fertilizer on vegetative growth, mineral nutrition, straw yield and technological quality; i.e., levels of total soluble solids, industry fiber (bagasse), apparent sucrose, juice purity, and reducing sugars in a ratoon sugarcane grown in Oxisol in a mechanized harvesting system. The experiment design was carried out in the 2009/10 cropping season in the state of São Paulo, Brazil, in the first regrowth of sugarcane after harvest using cultivar RB 86-7515. The experimental design was a randomized block with five replicates and five rates of K-fertilizer: 0 (control); 32.5; 65.0; 130.0 and 195.0 kg ha-1 of K2O. Potassium levels in the soil and in the plant, stalk production and the technological quality were evaluated at harvest. The rate of 195 kg ha-1 of K2O increased in 279, 78, 142 and 29% the K exchangeable content in the 0-20 and 20-40 cm layers at 180 and 360 DAS, respectively, increased soil potassium availability and promoted higher absorption of nutrients by plants, reaching 9.8 g kg-1 in leaves; i.e. 22.6% higher compared to the control treatment. The higher absorption of potassium was reflected on yield gain of 28.6% with 147.5 kg ha-1 of K2O. Therefore, 130 kg ha-1 of K2O is the most appropriate rate for the production of stalks of sugarcane grown in an Oxisol within the range evaluated. This rate kept potassium nutritional status very close to the adequate and promoted its accumulation in stalks at levels considered satisfactory to reach high yields in the first ratoon. Potassium fertilization had little effect in the technological quality. |
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Growth, yield and nutrition of sugarcane ratoon as affected by potassium in a mechanized harvesting systemConservationist systemPlant nutritionPotassium fertilizationPotassium nutritionSaccharum sppSugarcane mechanical harvest deposes straw residue on the soil surface, increases soil organic matter and improves nutrients cycling, especially potassium (K). The objective of this work was to evaluate the effect of K fertilizer on vegetative growth, mineral nutrition, straw yield and technological quality; i.e., levels of total soluble solids, industry fiber (bagasse), apparent sucrose, juice purity, and reducing sugars in a ratoon sugarcane grown in Oxisol in a mechanized harvesting system. The experiment design was carried out in the 2009/10 cropping season in the state of São Paulo, Brazil, in the first regrowth of sugarcane after harvest using cultivar RB 86-7515. The experimental design was a randomized block with five replicates and five rates of K-fertilizer: 0 (control); 32.5; 65.0; 130.0 and 195.0 kg ha-1 of K2O. Potassium levels in the soil and in the plant, stalk production and the technological quality were evaluated at harvest. The rate of 195 kg ha-1 of K2O increased in 279, 78, 142 and 29% the K exchangeable content in the 0-20 and 20-40 cm layers at 180 and 360 DAS, respectively, increased soil potassium availability and promoted higher absorption of nutrients by plants, reaching 9.8 g kg-1 in leaves; i.e. 22.6% higher compared to the control treatment. The higher absorption of potassium was reflected on yield gain of 28.6% with 147.5 kg ha-1 of K2O. Therefore, 130 kg ha-1 of K2O is the most appropriate rate for the production of stalks of sugarcane grown in an Oxisol within the range evaluated. This rate kept potassium nutritional status very close to the adequate and promoted its accumulation in stalks at levels considered satisfactory to reach high yields in the first ratoon. Potassium fertilization had little effect in the technological quality.Department of Soils and Fertilizers, Paulista State UniversityDepartment of Soils, College of Agriculture, Federal University of GoiásDepartment of Soils and Fertilizers, Paulista State UniversityUniversidade Estadual Paulista (UNESP)Universidade Federal de Goiás (UFG)Pancelli, Márcio Alexandre [UNESP]Prado, Renato de Melo [UNESP]Flores, Rilner Alvesde Almeida, Hilário Júnior [UNESP]Moda, Leandro Rosatto [UNESP]de Souza Junior, Jonas Pereira [UNESP]2022-04-28T19:01:43Z2022-04-28T19:01:43Z2015-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article915-924Australian Journal of Crop Science, v. 9, n. 10, p. 915-924, 2015.1835-27071835-2693http://hdl.handle.net/11449/2204862-s2.0-84946218443Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengAustralian Journal of Crop Scienceinfo:eu-repo/semantics/openAccess2022-04-28T19:01:43Zoai:repositorio.unesp.br:11449/220486Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462022-04-28T19:01:43Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Growth, yield and nutrition of sugarcane ratoon as affected by potassium in a mechanized harvesting system |
title |
Growth, yield and nutrition of sugarcane ratoon as affected by potassium in a mechanized harvesting system |
spellingShingle |
Growth, yield and nutrition of sugarcane ratoon as affected by potassium in a mechanized harvesting system Pancelli, Márcio Alexandre [UNESP] Conservationist system Plant nutrition Potassium fertilization Potassium nutrition Saccharum spp |
title_short |
Growth, yield and nutrition of sugarcane ratoon as affected by potassium in a mechanized harvesting system |
title_full |
Growth, yield and nutrition of sugarcane ratoon as affected by potassium in a mechanized harvesting system |
title_fullStr |
Growth, yield and nutrition of sugarcane ratoon as affected by potassium in a mechanized harvesting system |
title_full_unstemmed |
Growth, yield and nutrition of sugarcane ratoon as affected by potassium in a mechanized harvesting system |
title_sort |
Growth, yield and nutrition of sugarcane ratoon as affected by potassium in a mechanized harvesting system |
author |
Pancelli, Márcio Alexandre [UNESP] |
author_facet |
Pancelli, Márcio Alexandre [UNESP] Prado, Renato de Melo [UNESP] Flores, Rilner Alves de Almeida, Hilário Júnior [UNESP] Moda, Leandro Rosatto [UNESP] de Souza Junior, Jonas Pereira [UNESP] |
author_role |
author |
author2 |
Prado, Renato de Melo [UNESP] Flores, Rilner Alves de Almeida, Hilário Júnior [UNESP] Moda, Leandro Rosatto [UNESP] de Souza Junior, Jonas Pereira [UNESP] |
author2_role |
author author author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (UNESP) Universidade Federal de Goiás (UFG) |
dc.contributor.author.fl_str_mv |
Pancelli, Márcio Alexandre [UNESP] Prado, Renato de Melo [UNESP] Flores, Rilner Alves de Almeida, Hilário Júnior [UNESP] Moda, Leandro Rosatto [UNESP] de Souza Junior, Jonas Pereira [UNESP] |
dc.subject.por.fl_str_mv |
Conservationist system Plant nutrition Potassium fertilization Potassium nutrition Saccharum spp |
topic |
Conservationist system Plant nutrition Potassium fertilization Potassium nutrition Saccharum spp |
description |
Sugarcane mechanical harvest deposes straw residue on the soil surface, increases soil organic matter and improves nutrients cycling, especially potassium (K). The objective of this work was to evaluate the effect of K fertilizer on vegetative growth, mineral nutrition, straw yield and technological quality; i.e., levels of total soluble solids, industry fiber (bagasse), apparent sucrose, juice purity, and reducing sugars in a ratoon sugarcane grown in Oxisol in a mechanized harvesting system. The experiment design was carried out in the 2009/10 cropping season in the state of São Paulo, Brazil, in the first regrowth of sugarcane after harvest using cultivar RB 86-7515. The experimental design was a randomized block with five replicates and five rates of K-fertilizer: 0 (control); 32.5; 65.0; 130.0 and 195.0 kg ha-1 of K2O. Potassium levels in the soil and in the plant, stalk production and the technological quality were evaluated at harvest. The rate of 195 kg ha-1 of K2O increased in 279, 78, 142 and 29% the K exchangeable content in the 0-20 and 20-40 cm layers at 180 and 360 DAS, respectively, increased soil potassium availability and promoted higher absorption of nutrients by plants, reaching 9.8 g kg-1 in leaves; i.e. 22.6% higher compared to the control treatment. The higher absorption of potassium was reflected on yield gain of 28.6% with 147.5 kg ha-1 of K2O. Therefore, 130 kg ha-1 of K2O is the most appropriate rate for the production of stalks of sugarcane grown in an Oxisol within the range evaluated. This rate kept potassium nutritional status very close to the adequate and promoted its accumulation in stalks at levels considered satisfactory to reach high yields in the first ratoon. Potassium fertilization had little effect in the technological quality. |
publishDate |
2015 |
dc.date.none.fl_str_mv |
2015-01-01 2022-04-28T19:01:43Z 2022-04-28T19:01:43Z |
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 |
Australian Journal of Crop Science, v. 9, n. 10, p. 915-924, 2015. 1835-2707 1835-2693 http://hdl.handle.net/11449/220486 2-s2.0-84946218443 |
identifier_str_mv |
Australian Journal of Crop Science, v. 9, n. 10, p. 915-924, 2015. 1835-2707 1835-2693 2-s2.0-84946218443 |
url |
http://hdl.handle.net/11449/220486 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Australian Journal of Crop Science |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
915-924 |
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_ |
1799964450020655104 |