| |
|
|
 | Acesso ao texto completo restrito à biblioteca da Embrapa Agricultura Digital. Para informações adicionais entre em contato com cnptia.biblioteca@embrapa.br. |
|
Registro Completo |
|
Biblioteca(s): |
Embrapa Agricultura Digital. |
|
Data corrente: |
17/03/2014 |
|
Data da última atualização: |
08/01/2020 |
|
Tipo da produção científica: |
Artigo em Periódico Indexado |
|
Autoria: |
MARIN, F. R.; THORBURN, P. J.; COSTA, L. G. da; OTTO, R. |
|
Afiliação: |
FÁBIO RICARDO MARIN, CNPTIA; PETER J. THORBURN, CSIRO; LEANDRO G. DA COSTA, Esalq/USP; RAFAEL OTTO, Esalq/USP. |
|
Título: |
Simulating long-term effects of trash management on sugarcane yield for Brazilian cropping systems. |
|
Ano de publicação: |
2014 |
|
Fonte/Imprenta: |
Sugar Tech, New Delhi, v. 16, n. 2, p. 164-173, Apr./June 2014. |
|
DOI: |
10.1007/s12355-013-0265-2 |
|
Idioma: |
Inglês |
|
Conteúdo: |
Abstract Historically, trash has been burnt in Brazil. Recently, increasingly crops are being harvested green with trash retailed as blanket (GCTB) due to environmental restrictions, and because of the trash use as a feedstock for bioenergy. The presence of a trash blanket affects sugarcane crops, by conservation of soil moisture and a potential to increase soil carbon (C) and nitrogen (N). To gain insights into the impacts of the burnt-to-green cane trash blanket transition, a simulation study was conducted with the AP-SIM-Sugar crop model. Simulations were conducted over 100 years for 3 locations: Piracicaba-SP, Palmas-TO, and Maceio-AL, addressing 2 research questions: (1) what is the yield impact of the transition from burnt to GCTB due to soil N, C and water changes; and (2) what is the impact of trash removal on yield in fields managed under GCTBs. Both questions were answered based on the same set of simulations. We simulated the transition to GCTB after 25 years of burnt management combining four N rates and 3 trash removal treatments [no trash removal, 50 % trash removal (50 %) and 90 % trash removal (90 %)]. Simulated sugarcane yields have potential to respond positively to trash retention, and stalk yield for 50 and 90 % treatments decreased at rates proportional to the trash removal rates for Maceio and Piracicaba. In Palmas, located in a drier region, simulations showed trash retention having a positive effect firstly due to soil water retention. In Piracicaba, simulations also illustrated the potential negative, short-term impact of trash blanketing on yields due to the N immobilization by the decomposing trash. MenosAbstract Historically, trash has been burnt in Brazil. Recently, increasingly crops are being harvested green with trash retailed as blanket (GCTB) due to environmental restrictions, and because of the trash use as a feedstock for bioenergy. The presence of a trash blanket affects sugarcane crops, by conservation of soil moisture and a potential to increase soil carbon (C) and nitrogen (N). To gain insights into the impacts of the burnt-to-green cane trash blanket transition, a simulation study was conducted with the AP-SIM-Sugar crop model. Simulations were conducted over 100 years for 3 locations: Piracicaba-SP, Palmas-TO, and Maceio-AL, addressing 2 research questions: (1) what is the yield impact of the transition from burnt to GCTB due to soil N, C and water changes; and (2) what is the impact of trash removal on yield in fields managed under GCTBs. Both questions were answered based on the same set of simulations. We simulated the transition to GCTB after 25 years of burnt management combining four N rates and 3 trash removal treatments [no trash removal, 50 % trash removal (50 %) and 90 % trash removal (90 %)]. Simulated sugarcane yields have potential to respond positively to trash retention, and stalk yield for 50 and 90 % treatments decreased at rates proportional to the trash removal rates for Maceio and Piracicaba. In Palmas, located in a drier region, simulations showed trash retention having a positive effect firstly due to soil water retention. In Piracicaba, ... Mostrar Tudo |
|
Palavras-Chave: |
Cana-de-açúcar; Modelagem. |
|
Thesagro: |
Água; Nitrogênio. |
|
Thesaurus Nal: |
Crop residues; Models; Nitrogen; Sugarcane; Water. |
|
Categoria do assunto: |
X Pesquisa, Tecnologia e Engenharia |
|
Marc: |
LEADER 02432naa a2200277 a 4500
001 1982538
005 2020-01-08
008 2014 bl uuuu u00u1 u #d
024 7 $a10.1007/s12355-013-0265-2$2DOI
100 1 $aMARIN, F. R.
245 $aSimulating long-term effects of trash management on sugarcane yield for Brazilian cropping systems.$h[electronic resource]
260 $c2014
520 $aAbstract Historically, trash has been burnt in Brazil. Recently, increasingly crops are being harvested green with trash retailed as blanket (GCTB) due to environmental restrictions, and because of the trash use as a feedstock for bioenergy. The presence of a trash blanket affects sugarcane crops, by conservation of soil moisture and a potential to increase soil carbon (C) and nitrogen (N). To gain insights into the impacts of the burnt-to-green cane trash blanket transition, a simulation study was conducted with the AP-SIM-Sugar crop model. Simulations were conducted over 100 years for 3 locations: Piracicaba-SP, Palmas-TO, and Maceio-AL, addressing 2 research questions: (1) what is the yield impact of the transition from burnt to GCTB due to soil N, C and water changes; and (2) what is the impact of trash removal on yield in fields managed under GCTBs. Both questions were answered based on the same set of simulations. We simulated the transition to GCTB after 25 years of burnt management combining four N rates and 3 trash removal treatments [no trash removal, 50 % trash removal (50 %) and 90 % trash removal (90 %)]. Simulated sugarcane yields have potential to respond positively to trash retention, and stalk yield for 50 and 90 % treatments decreased at rates proportional to the trash removal rates for Maceio and Piracicaba. In Palmas, located in a drier region, simulations showed trash retention having a positive effect firstly due to soil water retention. In Piracicaba, simulations also illustrated the potential negative, short-term impact of trash blanketing on yields due to the N immobilization by the decomposing trash.
650 $aCrop residues
650 $aModels
650 $aNitrogen
650 $aSugarcane
650 $aWater
650 $aÁgua
650 $aNitrogênio
653 $aCana-de-açúcar
653 $aModelagem
700 1 $aTHORBURN, P. J.
700 1 $aCOSTA, L. G. da
700 1 $aOTTO, R.
773 $tSugar Tech, New Delhi$gv. 16, n. 2, p. 164-173, Apr./June 2014.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Agricultura Digital (CNPTIA) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
|
|
|
| Registros recuperados : 138 | |
| Registros recuperados : 138 | |
|
| Nenhum registro encontrado para a expressão de busca informada. |
|
|
