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Registro Completo |
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Biblioteca(s): |
Embrapa Soja. |
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Data corrente: |
16/02/2017 |
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Data da última atualização: |
05/07/2019 |
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Tipo da produção científica: |
Artigo em Anais de Congresso |
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Autoria: |
TREIN, C. R.; MORAES, M. T. de; LEVIEN, R.; MAZURANA, M.; ANGHIGNONI, I.; DEBIASI, H.; BONETTI, J. A. |
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Afiliação: |
UFRGS; UFRGS; UFRGS; UFRGS; UFRGS; HENRIQUE DEBIASI, CNPSO; UFRGS. |
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Título: |
Tillage systems with controlled traffic and limits to maize production. |
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Ano de publicação: |
2015 |
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Fonte/Imprenta: |
In: CIOSTA, 36., CIGR SECTION, 5. 2015, Saint Petersburg. Environmentally friendly agriculture and forestry for future generations. Saint Peterburg: Saint-Petersburg State Agrarian University, 2015. |
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Páginas: |
p. 818-823. |
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Idioma: |
Inglês |
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Conteúdo: |
Soil compaction can reduce the growth of crops, causing production losses even in soil conservation systems. In areas where controlled traffic is used, the wheeled rows are prone to show limiting conditions for corn growth and production. Determination of soil critical values limiting plant growth and corn grain productivity in areas with controlled traffic would be a valuable tool to adopt controlled traffic. Aiming the assessing of critical values to soil compaction an experiment was designed on a Rhodic Paleudult as random blocks in factorial scheme 2x4x5 (tillage x wheeling x soil layers), with three replications. Maize was sown with direct drilling (zero tillage) and reduced tillage (chiseling) system. A tractor with 3.8 Mg was used to compact soil in both systems (0, 1, 3 and 6 wheeling) prior to sowing. The soil density, macro porosity and field capacity were determined in undisturbed soil samples taken at 0-5; 5-10; 10-15; 15-20 and 20-25 cm dept layers. Soil penetration resistance (PR) was evaluated in the field as well. Regardless of tillage system, traffic increased agricultural soil density values even to the depth of 20 cm. The highest value of PR (1600 kPa) and soil density (1.67 Mg m-3) were not limiting to maize growth and the productivity of corn grains increased on wheeled soil. Water content of the soil after wheeling, at field capacity, was increased by up to 0.1 m3 m-3 and the macro porosity was reduced in 10%. The grain production of corn was higher in wheeled soil. The values of soil density and PR were not limiting to root growth. Wheeling the soil even up to six times with tractor, did not limit maize growth, and showed increases in grain productivity. MenosSoil compaction can reduce the growth of crops, causing production losses even in soil conservation systems. In areas where controlled traffic is used, the wheeled rows are prone to show limiting conditions for corn growth and production. Determination of soil critical values limiting plant growth and corn grain productivity in areas with controlled traffic would be a valuable tool to adopt controlled traffic. Aiming the assessing of critical values to soil compaction an experiment was designed on a Rhodic Paleudult as random blocks in factorial scheme 2x4x5 (tillage x wheeling x soil layers), with three replications. Maize was sown with direct drilling (zero tillage) and reduced tillage (chiseling) system. A tractor with 3.8 Mg was used to compact soil in both systems (0, 1, 3 and 6 wheeling) prior to sowing. The soil density, macro porosity and field capacity were determined in undisturbed soil samples taken at 0-5; 5-10; 10-15; 15-20 and 20-25 cm dept layers. Soil penetration resistance (PR) was evaluated in the field as well. Regardless of tillage system, traffic increased agricultural soil density values even to the depth of 20 cm. The highest value of PR (1600 kPa) and soil density (1.67 Mg m-3) were not limiting to maize growth and the productivity of corn grains increased on wheeled soil. Water content of the soil after wheeling, at field capacity, was increased by up to 0.1 m3 m-3 and the macro porosity was reduced in 10%. The grain production of corn was higher in ... Mostrar Tudo |
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Thesagro: |
Milho; Solo. |
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Thesaurus Nal: |
Corn; Soil. |
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Categoria do assunto: |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/155935/1/ciosta.p.818.pdf
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Marc: |
LEADER 02490nam a2200241 a 4500
001 2064544
005 2019-07-05
008 2015 bl uuuu u00u1 u #d
100 1 $aTREIN, C. R.
245 $aTillage systems with controlled traffic and limits to maize production.$h[electronic resource]
260 $aIn: CIOSTA, 36., CIGR SECTION, 5. 2015, Saint Petersburg. Environmentally friendly agriculture and forestry for future generations. Saint Peterburg: Saint-Petersburg State Agrarian University$c2015
300 $ap. 818-823.
520 $aSoil compaction can reduce the growth of crops, causing production losses even in soil conservation systems. In areas where controlled traffic is used, the wheeled rows are prone to show limiting conditions for corn growth and production. Determination of soil critical values limiting plant growth and corn grain productivity in areas with controlled traffic would be a valuable tool to adopt controlled traffic. Aiming the assessing of critical values to soil compaction an experiment was designed on a Rhodic Paleudult as random blocks in factorial scheme 2x4x5 (tillage x wheeling x soil layers), with three replications. Maize was sown with direct drilling (zero tillage) and reduced tillage (chiseling) system. A tractor with 3.8 Mg was used to compact soil in both systems (0, 1, 3 and 6 wheeling) prior to sowing. The soil density, macro porosity and field capacity were determined in undisturbed soil samples taken at 0-5; 5-10; 10-15; 15-20 and 20-25 cm dept layers. Soil penetration resistance (PR) was evaluated in the field as well. Regardless of tillage system, traffic increased agricultural soil density values even to the depth of 20 cm. The highest value of PR (1600 kPa) and soil density (1.67 Mg m-3) were not limiting to maize growth and the productivity of corn grains increased on wheeled soil. Water content of the soil after wheeling, at field capacity, was increased by up to 0.1 m3 m-3 and the macro porosity was reduced in 10%. The grain production of corn was higher in wheeled soil. The values of soil density and PR were not limiting to root growth. Wheeling the soil even up to six times with tractor, did not limit maize growth, and showed increases in grain productivity.
650 $aCorn
650 $aSoil
650 $aMilho
650 $aSolo
700 1 $aMORAES, M. T. de
700 1 $aLEVIEN, R.
700 1 $aMAZURANA, M.
700 1 $aANGHIGNONI, I.
700 1 $aDEBIASI, H.
700 1 $aBONETTI, J. A.
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Registro original: |
Embrapa Soja (CNPSO) |
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Registro Completo
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Biblioteca(s): |
Embrapa Soja; Embrapa Unidades Centrais. |
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Data corrente: |
06/05/1992 |
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Data da última atualização: |
09/04/2015 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
Nacional - A |
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Autoria: |
PANIZZI, A. R.; CORRÊA-FERREIRA, B. S. |
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Afiliação: |
ANTONIO RICARDO PANIZZI, CNPT; BEATRIZ SPALDING CORRÊA FERREIRA, CNPSo. |
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Título: |
Geometrídeos em soja: flutuação estacional e ressurgência após o uso de inseticidas. |
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Ano de publicação: |
1980 |
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Fonte/Imprenta: |
Pesquisa Agropecuária Brasileira, Brasília, DF, v. 15, n. 2, p. 159-161, abr. 1980. |
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Idioma: |
Português |
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Conteúdo: |
RESUMO - Foi feito levantamento das espécies de geometrídeos ocorrentes em soja, em 1976, na cultivar 'Bragg' e na linhagem ED-73-371, e em 1976 e 1977, na cultivar UFV-1'. Foram observadas as espécies Iridopsis vaciliarta Waiker, Oxydia nfrn bata Guenée, SemiotI, ira regulara Fabricius, Semiothlsa sp., Stenalcldla sp. Em geral, as lagartas ocorreram em maior abundância no final do ciclo da soja, de meados do período de enchimento das vagens a sua maturação fisiológica. Comparando-se parcelas tratadas e não tratadas com inseticidas, observou-se, naquelas, um nível populacional duas vezes superior, cerca de quatro semanas após o tratamento, caracterizando o fenômeno da ressuxgência. ABSTRACT - A survey of geometrid caterpillars was carried out in soybean piou during 1976, on cultivar Bragg and ED 73-371 lineage,and on cultivar UFV-1' during the 1976 and 1977seasons. The foliowing species were coilected: lridopsis vacillaria Waiker, Oxydia nim bata Guenée,Sem/otbisa, egulata Fabriclus, Semiothisa sp., Stenakidia sp. Geometrid Iarvae were collected in greater numbers from mid pod-filling to the maturity stage. Resurgence of ttia pest population occurred each four weeks after Insecticide application, being two times more abundant iii treated than in untreated piou. |
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Palavras-Chave: |
Brasil; Flutuacao estacional; Geometrideos; Geometrids; Insect; Iridopsis vacillaria; Oxydia nimbata; Parana; Ressurgence; Ressurgencia; Semiothisa regulata; Soybean; Stenalcidia sp. |
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Thesagro: |
Inseto; Soja. |
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Thesaurus NAL: |
Brazil; Insects; Soybeans. |
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Categoria do assunto: |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/122019/1/geometrideos.pdf
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/198165/1/Geometrideos-em-soja-flutuacao.pdf
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Marc: |
LEADER 02229naa a2200349 a 4500
001 1444711
005 2015-04-09
008 1980 bl uuuu u00u1 u #d
100 1 $aPANIZZI, A. R.
245 $aGeometrídeos em soja$bflutuação estacional e ressurgência após o uso de inseticidas.
260 $c1980
520 $aRESUMO - Foi feito levantamento das espécies de geometrídeos ocorrentes em soja, em 1976, na cultivar 'Bragg' e na linhagem ED-73-371, e em 1976 e 1977, na cultivar UFV-1'. Foram observadas as espécies Iridopsis vaciliarta Waiker, Oxydia nfrn bata Guenée, SemiotI, ira regulara Fabricius, Semiothlsa sp., Stenalcldla sp. Em geral, as lagartas ocorreram em maior abundância no final do ciclo da soja, de meados do período de enchimento das vagens a sua maturação fisiológica. Comparando-se parcelas tratadas e não tratadas com inseticidas, observou-se, naquelas, um nível populacional duas vezes superior, cerca de quatro semanas após o tratamento, caracterizando o fenômeno da ressuxgência. ABSTRACT - A survey of geometrid caterpillars was carried out in soybean piou during 1976, on cultivar Bragg and ED 73-371 lineage,and on cultivar UFV-1' during the 1976 and 1977seasons. The foliowing species were coilected: lridopsis vacillaria Waiker, Oxydia nim bata Guenée,Sem/otbisa, egulata Fabriclus, Semiothisa sp., Stenakidia sp. Geometrid Iarvae were collected in greater numbers from mid pod-filling to the maturity stage. Resurgence of ttia pest population occurred each four weeks after Insecticide application, being two times more abundant iii treated than in untreated piou.
650 $aBrazil
650 $aInsects
650 $aSoybeans
650 $aInseto
650 $aSoja
653 $aBrasil
653 $aFlutuacao estacional
653 $aGeometrideos
653 $aGeometrids
653 $aInsect
653 $aIridopsis vacillaria
653 $aOxydia nimbata
653 $aParana
653 $aRessurgence
653 $aRessurgencia
653 $aSemiothisa regulata
653 $aSoybean
653 $aStenalcidia sp
700 1 $aCORRÊA-FERREIRA, B. S.
773 $tPesquisa Agropecuária Brasileira, Brasília, DF$gv. 15, n. 2, p. 159-161, abr. 1980.
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Embrapa Soja (CNPSO) |
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