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Registro Completo |
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Biblioteca(s): |
Embrapa Meio Norte / UEP-Parnaíba. |
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Data corrente: |
16/10/1998 |
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Data da última atualização: |
19/12/2011 |
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Autoria: |
GANGBAZO, G.; PESANT, A. R.; BARNETT, G. M.; CHARUEST, J. P.; CLUIS, D. |
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Título: |
Water contamination by ammonmium nitrogen following the spreading of hog manure and mineral fertilizers. |
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Ano de publicação: |
1995 |
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Fonte/Imprenta: |
Journal of Environmental Quality, v.24, p.420-425, 1995. |
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Idioma: |
Inglês |
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Conteúdo: |
Inapproriate fertilization practices in regions where livestock manure exceeds crop requirements may cause pollution by NH4+-N) during snowmelt. Annual and seasonal NH4+-N losses were evaluated for there consecutive years from 45 m2 corn (Zea mays L.) and timothy (Pheum pratense L.) and red and white clover (Trifolium repens L.) erosion plots that had annually received the recommended chemical fertilizer rates of 180 and 55kg Nha-1, respectively, plus hog manure at twice those rates. Total N applications for corn and forage were 540 and 165 kg ha-1 except for a check plot receiving only fertilizer. The hog manure was surface-applied in three different ways: all in the fall, all in the spring, and in a split application with about one-half in each season. Corn plots receiving fall-applied manure e were immediately rototilled while plots receiving spring-applied manure were rototilled prior to planting. Each plot was equipped to collect runoff and drainage water separately throughout the whole year. Total NH+4-N losses in both runoff and drainage water from autumn application were greater than for the other application methods for corn and the forages. Plots receivingchemical fertilizer plus hog manure had a significant increase in NH4+-N losses as compared with the plots receiving fertilizer only. Due to the fall manure effect, NH4+-N loads increases by three-fold after the first year (1-11-3.43 kg ha-1), by 1.46 times between the first and the second year, and by 1.14 times between the second and the third year for corn when compared with the fertilizer only treatment and exceeded the standard of 0.5 mg L-1 for raw water. Similar trends were measured for the forages. Most NH4+-N was lost during the autumn and winter periods for corn. For both crops, there was an increase in loss from fall to winter and a decrease both from winter to spring and from spring to summer. MenosInapproriate fertilization practices in regions where livestock manure exceeds crop requirements may cause pollution by NH4+-N) during snowmelt. Annual and seasonal NH4+-N losses were evaluated for there consecutive years from 45 m2 corn (Zea mays L.) and timothy (Pheum pratense L.) and red and white clover (Trifolium repens L.) erosion plots that had annually received the recommended chemical fertilizer rates of 180 and 55kg Nha-1, respectively, plus hog manure at twice those rates. Total N applications for corn and forage were 540 and 165 kg ha-1 except for a check plot receiving only fertilizer. The hog manure was surface-applied in three different ways: all in the fall, all in the spring, and in a split application with about one-half in each season. Corn plots receiving fall-applied manure e were immediately rototilled while plots receiving spring-applied manure were rototilled prior to planting. Each plot was equipped to collect runoff and drainage water separately throughout the whole year. Total NH+4-N losses in both runoff and drainage water from autumn application were greater than for the other application methods for corn and the forages. Plots receivingchemical fertilizer plus hog manure had a significant increase in NH4+-N losses as compared with the plots receiving fertilizer only. Due to the fall manure effect, NH4+-N loads increases by three-fold after the first year (1-11-3.43 kg ha-1), by 1.46 times between the first and the second year, and by 1.14 ... Mostrar Tudo |
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Palavras-Chave: |
Ammonium; Amônio; Nitrate. |
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Thesagro: |
Lençol Freático; Lixiviação; Nitrato; Nitrogênio. |
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Thesaurus Nal: |
groundwater; leaching; nitrogen. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02676naa a2200289 a 4500
001 1079468
005 2011-12-19
008 1995 bl --- 0-- u #d
100 1 $aGANGBAZO, G.
245 $aWater contamination by ammonmium nitrogen following the spreading of hog manure and mineral fertilizers.
260 $c1995
520 $aInapproriate fertilization practices in regions where livestock manure exceeds crop requirements may cause pollution by NH4+-N) during snowmelt. Annual and seasonal NH4+-N losses were evaluated for there consecutive years from 45 m2 corn (Zea mays L.) and timothy (Pheum pratense L.) and red and white clover (Trifolium repens L.) erosion plots that had annually received the recommended chemical fertilizer rates of 180 and 55kg Nha-1, respectively, plus hog manure at twice those rates. Total N applications for corn and forage were 540 and 165 kg ha-1 except for a check plot receiving only fertilizer. The hog manure was surface-applied in three different ways: all in the fall, all in the spring, and in a split application with about one-half in each season. Corn plots receiving fall-applied manure e were immediately rototilled while plots receiving spring-applied manure were rototilled prior to planting. Each plot was equipped to collect runoff and drainage water separately throughout the whole year. Total NH+4-N losses in both runoff and drainage water from autumn application were greater than for the other application methods for corn and the forages. Plots receivingchemical fertilizer plus hog manure had a significant increase in NH4+-N losses as compared with the plots receiving fertilizer only. Due to the fall manure effect, NH4+-N loads increases by three-fold after the first year (1-11-3.43 kg ha-1), by 1.46 times between the first and the second year, and by 1.14 times between the second and the third year for corn when compared with the fertilizer only treatment and exceeded the standard of 0.5 mg L-1 for raw water. Similar trends were measured for the forages. Most NH4+-N was lost during the autumn and winter periods for corn. For both crops, there was an increase in loss from fall to winter and a decrease both from winter to spring and from spring to summer.
650 $agroundwater
650 $aleaching
650 $anitrogen
650 $aLençol Freático
650 $aLixiviação
650 $aNitrato
650 $aNitrogênio
653 $aAmmonium
653 $aAmônio
653 $aNitrate
700 1 $aPESANT, A. R.
700 1 $aBARNETT, G. M.
700 1 $aCHARUEST, J. P.
700 1 $aCLUIS, D.
773 $tJournal of Environmental Quality$gv.24, p.420-425, 1995.
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Registro original: |
Embrapa Meio Norte / UEP-Parnaíba (CPAMN-UEPP) |
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Registro Completo
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Biblioteca(s): |
Embrapa Pecuária Sul. |
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Data corrente: |
09/09/2015 |
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Data da última atualização: |
03/03/2016 |
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Tipo da produção científica: |
Resumo em Anais de Congresso |
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Autoria: |
ÁVILA, M. R. de; SANTOS, T. N. dos; SILVA, G. B. P. da; DALL'AGNOL, M.; MARTINELLI, J. A.; KÖPP, M. M. |
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Afiliação: |
Mariana Rockenbach de Ávila, UFRGS; Tamyris Nunes dos Santos, UFRGS; Gerarda Beatriz Pinto da Silva, UFRGS; Miguel Dall’Agnol, UFRGS; José Antonio Martinelli, UFRGS; MAURICIO MARINI KÖPP, CPPSUL. |
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Título: |
Agronomic production and evaluation of severity of Curvularia geniculata on Medicago sativa cv. Crioula in Southern Brazil. |
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Ano de publicação: |
2015 |
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Fonte/Imprenta: |
In: CONGRESSO BRASILEIRO DE MELHORAMENTO DE PLANTAS, 8., 2015, Goiânia. O melhoramento de plantas, o futuro da agricultura e a soberania nacional: anais. Goiânia: UFG: SBMP, 2015. |
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Idioma: |
Inglês |
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Thesagro: |
Pastagem. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/129224/1/resAnexo1-0050-0002.pdf
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Marc: |
LEADER 00703nam a2200169 a 4500
001 2023484
005 2016-03-03
008 2015 bl uuuu u00u1 u #d
100 1 $aÁVILA, M. R. de
245 $aAgronomic production and evaluation of severity of Curvularia geniculata on Medicago sativa cv. Crioula in Southern Brazil.$h[electronic resource]
260 $aIn: CONGRESSO BRASILEIRO DE MELHORAMENTO DE PLANTAS, 8., 2015, Goiânia. O melhoramento de plantas, o futuro da agricultura e a soberania nacional: anais. Goiânia: UFG: SBMP$c2015
650 $aPastagem
700 1 $aSANTOS, T. N. dos
700 1 $aSILVA, G. B. P. da
700 1 $aDALL'AGNOL, M.
700 1 $aMARTINELLI, J. A.
700 1 $aKÖPP, M. M.
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Embrapa Pecuária Sul (CPPSUL) |
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