Can the agronomic performance of urea equal calcium ammonium nitrate across nitrogen rates in temperate grassland?
In temperate grassland, urea has been shown to have lower nitrous oxide emissions compared to ammonium nitrate‐based fertilizer and is less expensive. However, nitrogen (N) loss via ammonia volatilization from urea raises questions regarding yield performance and efficiency. This study compares the...
Ausführliche Beschreibung
Gespeichert in:
| Autor*in: |
Forrestal, P. J [verfasserIn] |
|---|
| Format: |
Artikel |
|---|---|
| Sprache: |
Englisch |
| Erschienen: |
2017 |
|---|
| Rechteinformationen: |
Nutzungsrecht: © 2017 British Society of Soil Science |
|---|
| Schlagwörter: |
|---|
| Übergeordnetes Werk: |
Enthalten in: Soil use and management - Oxford : Blackwell Publ., 1985, 33(2017), 2, Seite 243-251 |
|---|---|
| Übergeordnetes Werk: |
volume:33 ; year:2017 ; number:2 ; pages:243-251 |
| Links: |
|---|
| DOI / URN: |
10.1111/sum.12341 |
|---|
| Katalog-ID: |
OLC1995103306 |
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| 245 | 1 | 0 | |a Can the agronomic performance of urea equal calcium ammonium nitrate across nitrogen rates in temperate grassland? |
| 264 | 1 | |c 2017 | |
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| 520 | |a In temperate grassland, urea has been shown to have lower nitrous oxide emissions compared to ammonium nitrate‐based fertilizer and is less expensive. However, nitrogen (N) loss via ammonia volatilization from urea raises questions regarding yield performance and efficiency. This study compares the yield and N offtake of grass fertilized with urea, calcium ammonium nitrate ( CAN ) and urea treated with the urease inhibitor N ‐( n ‐ butyl) thiophosphoric triamide ( NBPT ) at six site‐years. Five annual fertilizer N rates (100–500 kg N/ha) were applied in five equal splits of 20–100 kg N/ha during the growing season. On average, urea produced slightly better yields than CAN in spring (103.5% of CAN yield) and slightly poorer yields in summer (98.4% of CAN yield). There was no significant difference in annual grass yield between urea, CAN and urea + NBPT . Urea had the lowest cost per tonne of DM grass yield produced. However, the urea treatment had lower N offtake than CAN and this difference was more pronounced as the N rate increased. There was no difference in N offtake between urea + NBPT and CAN . While this study shows that urea produced yields comparable to CAN , urea apparent fertilizer N recovery ( AFNR ) tends to be lower. Urea selection in place of CAN will increase national ammonia emissions which is problematic for countries with targets to reduce ammonia emissions. Promisingly, NBPT allows the agronomic performance of urea to consistently equal CAN across N rates by addressing the ammonia loss limitations of urea. | ||
| 540 | |a Nutzungsrecht: © 2017 British Society of Soil Science | ||
| 650 | 4 | |a grassland | |
| 650 | 4 | |a pasture | |
| 650 | 4 | |a urea | |
| 650 | 4 | |a urease inhibitor | |
| 650 | 4 | |a (n‐butyl) thiophosphoric triamide | |
| 650 | 4 | |a calcium ammonium nitrate | |
| 650 | 4 | |a Fertilizer nitrogen | |
| 650 | 4 | |a Nitrate | |
| 650 | 4 | |a Calcium | |
| 650 | 4 | |a Spring (season) | |
| 650 | 4 | |a Grasses | |
| 650 | 4 | |a Urea | |
| 650 | 4 | |a Summer | |
| 650 | 4 | |a Fertilizing | |
| 650 | 4 | |a Efficiency | |
| 650 | 4 | |a Yield | |
| 650 | 4 | |a Fertilizers | |
| 650 | 4 | |a Nitrous oxide | |
| 650 | 4 | |a Emissions | |
| 650 | 4 | |a Inhibitors | |
| 650 | 4 | |a Ammonium nitrate | |
| 650 | 4 | |a Agronomy | |
| 650 | 4 | |a Ammonium | |
| 650 | 4 | |a Nitrates | |
| 650 | 4 | |a Ammonia | |
| 650 | 4 | |a Urease | |
| 650 | 4 | |a Volatilization | |
| 650 | 4 | |a Calcium nitrate | |
| 650 | 4 | |a Hydroxyapatite | |
| 650 | 4 | |a Grasslands | |
| 650 | 4 | |a Recovery | |
| 650 | 4 | |a Nitrogen | |
| 700 | 1 | |a Harty, M. A |4 oth | |
| 700 | 1 | |a Carolan, R |4 oth | |
| 700 | 1 | |a Watson, C. J |4 oth | |
| 700 | 1 | |a Lanigan, G. J |4 oth | |
| 700 | 1 | |a Wall, D. P |4 oth | |
| 700 | 1 | |a Hennessy, D |4 oth | |
| 700 | 1 | |a Richards, K. G |4 oth | |
| 700 | 1 | |a Nicholson, Fiona |4 oth | |
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| 856 | 4 | 1 | |u http://dx.doi.org/10.1111/sum.12341 |3 Volltext |
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10.1111/sum.12341 doi PQ20171125 (DE-627)OLC1995103306 (DE-599)GBVOLC1995103306 (PRQ)p1571-396ddf5d5db999cb0c5d23e3d723ff884dbc2554f5af1623f8dabe2bc9b373010 (KEY)0172628520170000033000200243cantheagronomicperformanceofureaequalcalciumammoni DE-627 ger DE-627 rakwb eng 630 640 DE-600 BIODIV fid 38.60 bkl 48.32 bkl Forrestal, P. J verfasserin aut Can the agronomic performance of urea equal calcium ammonium nitrate across nitrogen rates in temperate grassland? 2017 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier In temperate grassland, urea has been shown to have lower nitrous oxide emissions compared to ammonium nitrate‐based fertilizer and is less expensive. However, nitrogen (N) loss via ammonia volatilization from urea raises questions regarding yield performance and efficiency. This study compares the yield and N offtake of grass fertilized with urea, calcium ammonium nitrate ( CAN ) and urea treated with the urease inhibitor N ‐( n ‐ butyl) thiophosphoric triamide ( NBPT ) at six site‐years. Five annual fertilizer N rates (100–500 kg N/ha) were applied in five equal splits of 20–100 kg N/ha during the growing season. On average, urea produced slightly better yields than CAN in spring (103.5% of CAN yield) and slightly poorer yields in summer (98.4% of CAN yield). There was no significant difference in annual grass yield between urea, CAN and urea + NBPT . Urea had the lowest cost per tonne of DM grass yield produced. However, the urea treatment had lower N offtake than CAN and this difference was more pronounced as the N rate increased. There was no difference in N offtake between urea + NBPT and CAN . While this study shows that urea produced yields comparable to CAN , urea apparent fertilizer N recovery ( AFNR ) tends to be lower. Urea selection in place of CAN will increase national ammonia emissions which is problematic for countries with targets to reduce ammonia emissions. Promisingly, NBPT allows the agronomic performance of urea to consistently equal CAN across N rates by addressing the ammonia loss limitations of urea. Nutzungsrecht: © 2017 British Society of Soil Science grassland pasture urea urease inhibitor (n‐butyl) thiophosphoric triamide calcium ammonium nitrate Fertilizer nitrogen Nitrate Calcium Spring (season) Grasses Urea Summer Fertilizing Efficiency Yield Fertilizers Nitrous oxide Emissions Inhibitors Ammonium nitrate Agronomy Ammonium Nitrates Ammonia Urease Volatilization Calcium nitrate Hydroxyapatite Grasslands Recovery Nitrogen Harty, M. A oth Carolan, R oth Watson, C. J oth Lanigan, G. J oth Wall, D. P oth Hennessy, D oth Richards, K. G oth Nicholson, Fiona oth Enthalten in Soil use and management Oxford : Blackwell Publ., 1985 33(2017), 2, Seite 243-251 (DE-627)168400413 (DE-600)742151-5 (DE-576)252416953 0266-0032 nnns volume:33 year:2017 number:2 pages:243-251 http://dx.doi.org/10.1111/sum.12341 Volltext http://onlinelibrary.wiley.com/doi/10.1111/sum.12341/abstract https://search.proquest.com/docview/1911029420 GBV_USEFLAG_A SYSFLAG_A GBV_OLC FID-BIODIV SSG-OLC-GEO SSG-OPC-GGO SSG-OPC-FOR GBV_ILN_22 GBV_ILN_2026 GBV_ILN_2346 38.60 AVZ 48.32 AVZ AR 33 2017 2 243-251 |
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10.1111/sum.12341 doi PQ20171125 (DE-627)OLC1995103306 (DE-599)GBVOLC1995103306 (PRQ)p1571-396ddf5d5db999cb0c5d23e3d723ff884dbc2554f5af1623f8dabe2bc9b373010 (KEY)0172628520170000033000200243cantheagronomicperformanceofureaequalcalciumammoni DE-627 ger DE-627 rakwb eng 630 640 DE-600 BIODIV fid 38.60 bkl 48.32 bkl Forrestal, P. J verfasserin aut Can the agronomic performance of urea equal calcium ammonium nitrate across nitrogen rates in temperate grassland? 2017 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier In temperate grassland, urea has been shown to have lower nitrous oxide emissions compared to ammonium nitrate‐based fertilizer and is less expensive. However, nitrogen (N) loss via ammonia volatilization from urea raises questions regarding yield performance and efficiency. This study compares the yield and N offtake of grass fertilized with urea, calcium ammonium nitrate ( CAN ) and urea treated with the urease inhibitor N ‐( n ‐ butyl) thiophosphoric triamide ( NBPT ) at six site‐years. Five annual fertilizer N rates (100–500 kg N/ha) were applied in five equal splits of 20–100 kg N/ha during the growing season. On average, urea produced slightly better yields than CAN in spring (103.5% of CAN yield) and slightly poorer yields in summer (98.4% of CAN yield). There was no significant difference in annual grass yield between urea, CAN and urea + NBPT . Urea had the lowest cost per tonne of DM grass yield produced. However, the urea treatment had lower N offtake than CAN and this difference was more pronounced as the N rate increased. There was no difference in N offtake between urea + NBPT and CAN . While this study shows that urea produced yields comparable to CAN , urea apparent fertilizer N recovery ( AFNR ) tends to be lower. Urea selection in place of CAN will increase national ammonia emissions which is problematic for countries with targets to reduce ammonia emissions. Promisingly, NBPT allows the agronomic performance of urea to consistently equal CAN across N rates by addressing the ammonia loss limitations of urea. Nutzungsrecht: © 2017 British Society of Soil Science grassland pasture urea urease inhibitor (n‐butyl) thiophosphoric triamide calcium ammonium nitrate Fertilizer nitrogen Nitrate Calcium Spring (season) Grasses Urea Summer Fertilizing Efficiency Yield Fertilizers Nitrous oxide Emissions Inhibitors Ammonium nitrate Agronomy Ammonium Nitrates Ammonia Urease Volatilization Calcium nitrate Hydroxyapatite Grasslands Recovery Nitrogen Harty, M. A oth Carolan, R oth Watson, C. J oth Lanigan, G. J oth Wall, D. P oth Hennessy, D oth Richards, K. G oth Nicholson, Fiona oth Enthalten in Soil use and management Oxford : Blackwell Publ., 1985 33(2017), 2, Seite 243-251 (DE-627)168400413 (DE-600)742151-5 (DE-576)252416953 0266-0032 nnns volume:33 year:2017 number:2 pages:243-251 http://dx.doi.org/10.1111/sum.12341 Volltext http://onlinelibrary.wiley.com/doi/10.1111/sum.12341/abstract https://search.proquest.com/docview/1911029420 GBV_USEFLAG_A SYSFLAG_A GBV_OLC FID-BIODIV SSG-OLC-GEO SSG-OPC-GGO SSG-OPC-FOR GBV_ILN_22 GBV_ILN_2026 GBV_ILN_2346 38.60 AVZ 48.32 AVZ AR 33 2017 2 243-251 |
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10.1111/sum.12341 doi PQ20171125 (DE-627)OLC1995103306 (DE-599)GBVOLC1995103306 (PRQ)p1571-396ddf5d5db999cb0c5d23e3d723ff884dbc2554f5af1623f8dabe2bc9b373010 (KEY)0172628520170000033000200243cantheagronomicperformanceofureaequalcalciumammoni DE-627 ger DE-627 rakwb eng 630 640 DE-600 BIODIV fid 38.60 bkl 48.32 bkl Forrestal, P. J verfasserin aut Can the agronomic performance of urea equal calcium ammonium nitrate across nitrogen rates in temperate grassland? 2017 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier In temperate grassland, urea has been shown to have lower nitrous oxide emissions compared to ammonium nitrate‐based fertilizer and is less expensive. However, nitrogen (N) loss via ammonia volatilization from urea raises questions regarding yield performance and efficiency. This study compares the yield and N offtake of grass fertilized with urea, calcium ammonium nitrate ( CAN ) and urea treated with the urease inhibitor N ‐( n ‐ butyl) thiophosphoric triamide ( NBPT ) at six site‐years. Five annual fertilizer N rates (100–500 kg N/ha) were applied in five equal splits of 20–100 kg N/ha during the growing season. On average, urea produced slightly better yields than CAN in spring (103.5% of CAN yield) and slightly poorer yields in summer (98.4% of CAN yield). There was no significant difference in annual grass yield between urea, CAN and urea + NBPT . Urea had the lowest cost per tonne of DM grass yield produced. However, the urea treatment had lower N offtake than CAN and this difference was more pronounced as the N rate increased. There was no difference in N offtake between urea + NBPT and CAN . While this study shows that urea produced yields comparable to CAN , urea apparent fertilizer N recovery ( AFNR ) tends to be lower. Urea selection in place of CAN will increase national ammonia emissions which is problematic for countries with targets to reduce ammonia emissions. Promisingly, NBPT allows the agronomic performance of urea to consistently equal CAN across N rates by addressing the ammonia loss limitations of urea. Nutzungsrecht: © 2017 British Society of Soil Science grassland pasture urea urease inhibitor (n‐butyl) thiophosphoric triamide calcium ammonium nitrate Fertilizer nitrogen Nitrate Calcium Spring (season) Grasses Urea Summer Fertilizing Efficiency Yield Fertilizers Nitrous oxide Emissions Inhibitors Ammonium nitrate Agronomy Ammonium Nitrates Ammonia Urease Volatilization Calcium nitrate Hydroxyapatite Grasslands Recovery Nitrogen Harty, M. A oth Carolan, R oth Watson, C. J oth Lanigan, G. J oth Wall, D. P oth Hennessy, D oth Richards, K. G oth Nicholson, Fiona oth Enthalten in Soil use and management Oxford : Blackwell Publ., 1985 33(2017), 2, Seite 243-251 (DE-627)168400413 (DE-600)742151-5 (DE-576)252416953 0266-0032 nnns volume:33 year:2017 number:2 pages:243-251 http://dx.doi.org/10.1111/sum.12341 Volltext http://onlinelibrary.wiley.com/doi/10.1111/sum.12341/abstract https://search.proquest.com/docview/1911029420 GBV_USEFLAG_A SYSFLAG_A GBV_OLC FID-BIODIV SSG-OLC-GEO SSG-OPC-GGO SSG-OPC-FOR GBV_ILN_22 GBV_ILN_2026 GBV_ILN_2346 38.60 AVZ 48.32 AVZ AR 33 2017 2 243-251 |
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10.1111/sum.12341 doi PQ20171125 (DE-627)OLC1995103306 (DE-599)GBVOLC1995103306 (PRQ)p1571-396ddf5d5db999cb0c5d23e3d723ff884dbc2554f5af1623f8dabe2bc9b373010 (KEY)0172628520170000033000200243cantheagronomicperformanceofureaequalcalciumammoni DE-627 ger DE-627 rakwb eng 630 640 DE-600 BIODIV fid 38.60 bkl 48.32 bkl Forrestal, P. J verfasserin aut Can the agronomic performance of urea equal calcium ammonium nitrate across nitrogen rates in temperate grassland? 2017 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier In temperate grassland, urea has been shown to have lower nitrous oxide emissions compared to ammonium nitrate‐based fertilizer and is less expensive. However, nitrogen (N) loss via ammonia volatilization from urea raises questions regarding yield performance and efficiency. This study compares the yield and N offtake of grass fertilized with urea, calcium ammonium nitrate ( CAN ) and urea treated with the urease inhibitor N ‐( n ‐ butyl) thiophosphoric triamide ( NBPT ) at six site‐years. Five annual fertilizer N rates (100–500 kg N/ha) were applied in five equal splits of 20–100 kg N/ha during the growing season. On average, urea produced slightly better yields than CAN in spring (103.5% of CAN yield) and slightly poorer yields in summer (98.4% of CAN yield). There was no significant difference in annual grass yield between urea, CAN and urea + NBPT . Urea had the lowest cost per tonne of DM grass yield produced. However, the urea treatment had lower N offtake than CAN and this difference was more pronounced as the N rate increased. There was no difference in N offtake between urea + NBPT and CAN . While this study shows that urea produced yields comparable to CAN , urea apparent fertilizer N recovery ( AFNR ) tends to be lower. Urea selection in place of CAN will increase national ammonia emissions which is problematic for countries with targets to reduce ammonia emissions. Promisingly, NBPT allows the agronomic performance of urea to consistently equal CAN across N rates by addressing the ammonia loss limitations of urea. Nutzungsrecht: © 2017 British Society of Soil Science grassland pasture urea urease inhibitor (n‐butyl) thiophosphoric triamide calcium ammonium nitrate Fertilizer nitrogen Nitrate Calcium Spring (season) Grasses Urea Summer Fertilizing Efficiency Yield Fertilizers Nitrous oxide Emissions Inhibitors Ammonium nitrate Agronomy Ammonium Nitrates Ammonia Urease Volatilization Calcium nitrate Hydroxyapatite Grasslands Recovery Nitrogen Harty, M. A oth Carolan, R oth Watson, C. J oth Lanigan, G. J oth Wall, D. P oth Hennessy, D oth Richards, K. G oth Nicholson, Fiona oth Enthalten in Soil use and management Oxford : Blackwell Publ., 1985 33(2017), 2, Seite 243-251 (DE-627)168400413 (DE-600)742151-5 (DE-576)252416953 0266-0032 nnns volume:33 year:2017 number:2 pages:243-251 http://dx.doi.org/10.1111/sum.12341 Volltext http://onlinelibrary.wiley.com/doi/10.1111/sum.12341/abstract https://search.proquest.com/docview/1911029420 GBV_USEFLAG_A SYSFLAG_A GBV_OLC FID-BIODIV SSG-OLC-GEO SSG-OPC-GGO SSG-OPC-FOR GBV_ILN_22 GBV_ILN_2026 GBV_ILN_2346 38.60 AVZ 48.32 AVZ AR 33 2017 2 243-251 |
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10.1111/sum.12341 doi PQ20171125 (DE-627)OLC1995103306 (DE-599)GBVOLC1995103306 (PRQ)p1571-396ddf5d5db999cb0c5d23e3d723ff884dbc2554f5af1623f8dabe2bc9b373010 (KEY)0172628520170000033000200243cantheagronomicperformanceofureaequalcalciumammoni DE-627 ger DE-627 rakwb eng 630 640 DE-600 BIODIV fid 38.60 bkl 48.32 bkl Forrestal, P. J verfasserin aut Can the agronomic performance of urea equal calcium ammonium nitrate across nitrogen rates in temperate grassland? 2017 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier In temperate grassland, urea has been shown to have lower nitrous oxide emissions compared to ammonium nitrate‐based fertilizer and is less expensive. However, nitrogen (N) loss via ammonia volatilization from urea raises questions regarding yield performance and efficiency. This study compares the yield and N offtake of grass fertilized with urea, calcium ammonium nitrate ( CAN ) and urea treated with the urease inhibitor N ‐( n ‐ butyl) thiophosphoric triamide ( NBPT ) at six site‐years. Five annual fertilizer N rates (100–500 kg N/ha) were applied in five equal splits of 20–100 kg N/ha during the growing season. On average, urea produced slightly better yields than CAN in spring (103.5% of CAN yield) and slightly poorer yields in summer (98.4% of CAN yield). There was no significant difference in annual grass yield between urea, CAN and urea + NBPT . Urea had the lowest cost per tonne of DM grass yield produced. However, the urea treatment had lower N offtake than CAN and this difference was more pronounced as the N rate increased. There was no difference in N offtake between urea + NBPT and CAN . While this study shows that urea produced yields comparable to CAN , urea apparent fertilizer N recovery ( AFNR ) tends to be lower. Urea selection in place of CAN will increase national ammonia emissions which is problematic for countries with targets to reduce ammonia emissions. Promisingly, NBPT allows the agronomic performance of urea to consistently equal CAN across N rates by addressing the ammonia loss limitations of urea. Nutzungsrecht: © 2017 British Society of Soil Science grassland pasture urea urease inhibitor (n‐butyl) thiophosphoric triamide calcium ammonium nitrate Fertilizer nitrogen Nitrate Calcium Spring (season) Grasses Urea Summer Fertilizing Efficiency Yield Fertilizers Nitrous oxide Emissions Inhibitors Ammonium nitrate Agronomy Ammonium Nitrates Ammonia Urease Volatilization Calcium nitrate Hydroxyapatite Grasslands Recovery Nitrogen Harty, M. A oth Carolan, R oth Watson, C. J oth Lanigan, G. J oth Wall, D. P oth Hennessy, D oth Richards, K. G oth Nicholson, Fiona oth Enthalten in Soil use and management Oxford : Blackwell Publ., 1985 33(2017), 2, Seite 243-251 (DE-627)168400413 (DE-600)742151-5 (DE-576)252416953 0266-0032 nnns volume:33 year:2017 number:2 pages:243-251 http://dx.doi.org/10.1111/sum.12341 Volltext http://onlinelibrary.wiley.com/doi/10.1111/sum.12341/abstract https://search.proquest.com/docview/1911029420 GBV_USEFLAG_A SYSFLAG_A GBV_OLC FID-BIODIV SSG-OLC-GEO SSG-OPC-GGO SSG-OPC-FOR GBV_ILN_22 GBV_ILN_2026 GBV_ILN_2346 38.60 AVZ 48.32 AVZ AR 33 2017 2 243-251 |
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Forrestal, P. J @@aut@@ Harty, M. A @@oth@@ Carolan, R @@oth@@ Watson, C. J @@oth@@ Lanigan, G. J @@oth@@ Wall, D. P @@oth@@ Hennessy, D @@oth@@ Richards, K. G @@oth@@ Nicholson, Fiona @@oth@@ |
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630 640 DE-600 BIODIV fid 38.60 bkl 48.32 bkl Can the agronomic performance of urea equal calcium ammonium nitrate across nitrogen rates in temperate grassland? grassland pasture urea urease inhibitor (n‐butyl) thiophosphoric triamide calcium ammonium nitrate Fertilizer nitrogen Nitrate Calcium Spring (season) Grasses Urea Summer Fertilizing Efficiency Yield Fertilizers Nitrous oxide Emissions Inhibitors Ammonium nitrate Agronomy Ammonium Nitrates Ammonia Urease Volatilization Calcium nitrate Hydroxyapatite Grasslands Recovery Nitrogen |
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ddc 630 fid BIODIV bkl 38.60 bkl 48.32 misc grassland misc pasture misc urea misc urease inhibitor misc (n‐butyl) thiophosphoric triamide misc calcium ammonium nitrate misc Fertilizer nitrogen misc Nitrate misc Calcium misc Spring (season) misc Grasses misc Urea misc Summer misc Fertilizing misc Efficiency misc Yield misc Fertilizers misc Nitrous oxide misc Emissions misc Inhibitors misc Ammonium nitrate misc Agronomy misc Ammonium misc Nitrates misc Ammonia misc Urease misc Volatilization misc Calcium nitrate misc Hydroxyapatite misc Grasslands misc Recovery misc Nitrogen |
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can the agronomic performance of urea equal calcium ammonium nitrate across nitrogen rates in temperate grassland? |
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Can the agronomic performance of urea equal calcium ammonium nitrate across nitrogen rates in temperate grassland? |
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In temperate grassland, urea has been shown to have lower nitrous oxide emissions compared to ammonium nitrate‐based fertilizer and is less expensive. However, nitrogen (N) loss via ammonia volatilization from urea raises questions regarding yield performance and efficiency. This study compares the yield and N offtake of grass fertilized with urea, calcium ammonium nitrate ( CAN ) and urea treated with the urease inhibitor N ‐( n ‐ butyl) thiophosphoric triamide ( NBPT ) at six site‐years. Five annual fertilizer N rates (100–500 kg N/ha) were applied in five equal splits of 20–100 kg N/ha during the growing season. On average, urea produced slightly better yields than CAN in spring (103.5% of CAN yield) and slightly poorer yields in summer (98.4% of CAN yield). There was no significant difference in annual grass yield between urea, CAN and urea + NBPT . Urea had the lowest cost per tonne of DM grass yield produced. However, the urea treatment had lower N offtake than CAN and this difference was more pronounced as the N rate increased. There was no difference in N offtake between urea + NBPT and CAN . While this study shows that urea produced yields comparable to CAN , urea apparent fertilizer N recovery ( AFNR ) tends to be lower. Urea selection in place of CAN will increase national ammonia emissions which is problematic for countries with targets to reduce ammonia emissions. Promisingly, NBPT allows the agronomic performance of urea to consistently equal CAN across N rates by addressing the ammonia loss limitations of urea. |
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In temperate grassland, urea has been shown to have lower nitrous oxide emissions compared to ammonium nitrate‐based fertilizer and is less expensive. However, nitrogen (N) loss via ammonia volatilization from urea raises questions regarding yield performance and efficiency. This study compares the yield and N offtake of grass fertilized with urea, calcium ammonium nitrate ( CAN ) and urea treated with the urease inhibitor N ‐( n ‐ butyl) thiophosphoric triamide ( NBPT ) at six site‐years. Five annual fertilizer N rates (100–500 kg N/ha) were applied in five equal splits of 20–100 kg N/ha during the growing season. On average, urea produced slightly better yields than CAN in spring (103.5% of CAN yield) and slightly poorer yields in summer (98.4% of CAN yield). There was no significant difference in annual grass yield between urea, CAN and urea + NBPT . Urea had the lowest cost per tonne of DM grass yield produced. However, the urea treatment had lower N offtake than CAN and this difference was more pronounced as the N rate increased. There was no difference in N offtake between urea + NBPT and CAN . While this study shows that urea produced yields comparable to CAN , urea apparent fertilizer N recovery ( AFNR ) tends to be lower. Urea selection in place of CAN will increase national ammonia emissions which is problematic for countries with targets to reduce ammonia emissions. Promisingly, NBPT allows the agronomic performance of urea to consistently equal CAN across N rates by addressing the ammonia loss limitations of urea. |
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In temperate grassland, urea has been shown to have lower nitrous oxide emissions compared to ammonium nitrate‐based fertilizer and is less expensive. However, nitrogen (N) loss via ammonia volatilization from urea raises questions regarding yield performance and efficiency. This study compares the yield and N offtake of grass fertilized with urea, calcium ammonium nitrate ( CAN ) and urea treated with the urease inhibitor N ‐( n ‐ butyl) thiophosphoric triamide ( NBPT ) at six site‐years. Five annual fertilizer N rates (100–500 kg N/ha) were applied in five equal splits of 20–100 kg N/ha during the growing season. On average, urea produced slightly better yields than CAN in spring (103.5% of CAN yield) and slightly poorer yields in summer (98.4% of CAN yield). There was no significant difference in annual grass yield between urea, CAN and urea + NBPT . Urea had the lowest cost per tonne of DM grass yield produced. However, the urea treatment had lower N offtake than CAN and this difference was more pronounced as the N rate increased. There was no difference in N offtake between urea + NBPT and CAN . While this study shows that urea produced yields comparable to CAN , urea apparent fertilizer N recovery ( AFNR ) tends to be lower. Urea selection in place of CAN will increase national ammonia emissions which is problematic for countries with targets to reduce ammonia emissions. Promisingly, NBPT allows the agronomic performance of urea to consistently equal CAN across N rates by addressing the ammonia loss limitations of urea. |
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Can the agronomic performance of urea equal calcium ammonium nitrate across nitrogen rates in temperate grassland? |
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J</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="245" ind1="1" ind2="0"><subfield code="a">Can the agronomic performance of urea equal calcium ammonium nitrate across nitrogen rates in temperate grassland?</subfield></datafield><datafield tag="264" ind1=" " ind2="1"><subfield code="c">2017</subfield></datafield><datafield tag="336" ind1=" " ind2=" "><subfield code="a">Text</subfield><subfield code="b">txt</subfield><subfield code="2">rdacontent</subfield></datafield><datafield tag="337" ind1=" " ind2=" "><subfield code="a">ohne Hilfsmittel zu benutzen</subfield><subfield code="b">n</subfield><subfield code="2">rdamedia</subfield></datafield><datafield tag="338" ind1=" " ind2=" "><subfield code="a">Band</subfield><subfield code="b">nc</subfield><subfield code="2">rdacarrier</subfield></datafield><datafield tag="520" ind1=" " ind2=" "><subfield code="a">In temperate grassland, urea has been shown to have lower nitrous oxide emissions compared to ammonium nitrate‐based fertilizer and is less expensive. However, nitrogen (N) loss via ammonia volatilization from urea raises questions regarding yield performance and efficiency. This study compares the yield and N offtake of grass fertilized with urea, calcium ammonium nitrate ( CAN ) and urea treated with the urease inhibitor N ‐( n ‐ butyl) thiophosphoric triamide ( NBPT ) at six site‐years. Five annual fertilizer N rates (100–500 kg N/ha) were applied in five equal splits of 20–100 kg N/ha during the growing season. On average, urea produced slightly better yields than CAN in spring (103.5% of CAN yield) and slightly poorer yields in summer (98.4% of CAN yield). There was no significant difference in annual grass yield between urea, CAN and urea + NBPT . Urea had the lowest cost per tonne of DM grass yield produced. However, the urea treatment had lower N offtake than CAN and this difference was more pronounced as the N rate increased. There was no difference in N offtake between urea + NBPT and CAN . While this study shows that urea produced yields comparable to CAN , urea apparent fertilizer N recovery ( AFNR ) tends to be lower. Urea selection in place of CAN will increase national ammonia emissions which is problematic for countries with targets to reduce ammonia emissions. Promisingly, NBPT allows the agronomic performance of urea to consistently equal CAN across N rates by addressing the ammonia loss limitations of urea.</subfield></datafield><datafield tag="540" ind1=" " ind2=" "><subfield code="a">Nutzungsrecht: © 2017 British Society of Soil Science</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">grassland</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">pasture</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">urea</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">urease inhibitor</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">(n‐butyl) thiophosphoric triamide</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">calcium ammonium nitrate</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Fertilizer nitrogen</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Nitrate</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Calcium</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Spring (season)</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Grasses</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Urea</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Summer</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Fertilizing</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Efficiency</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Yield</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Fertilizers</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Nitrous oxide</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Emissions</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Inhibitors</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Ammonium nitrate</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Agronomy</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Ammonium</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Nitrates</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Ammonia</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Urease</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Volatilization</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Calcium nitrate</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Hydroxyapatite</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Grasslands</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Recovery</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Nitrogen</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Harty, M. A</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Carolan, R</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Watson, C. J</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Lanigan, G. J</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Wall, D. P</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Hennessy, D</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Richards, K. G</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Nicholson, Fiona</subfield><subfield code="4">oth</subfield></datafield><datafield tag="773" ind1="0" ind2="8"><subfield code="i">Enthalten in</subfield><subfield code="t">Soil use and management</subfield><subfield code="d">Oxford : Blackwell Publ., 1985</subfield><subfield code="g">33(2017), 2, Seite 243-251</subfield><subfield code="w">(DE-627)168400413</subfield><subfield code="w">(DE-600)742151-5</subfield><subfield code="w">(DE-576)252416953</subfield><subfield code="x">0266-0032</subfield><subfield code="7">nnns</subfield></datafield><datafield tag="773" ind1="1" ind2="8"><subfield code="g">volume:33</subfield><subfield code="g">year:2017</subfield><subfield code="g">number:2</subfield><subfield code="g">pages:243-251</subfield></datafield><datafield tag="856" ind1="4" ind2="1"><subfield code="u">http://dx.doi.org/10.1111/sum.12341</subfield><subfield code="3">Volltext</subfield></datafield><datafield tag="856" ind1="4" ind2="2"><subfield code="u">http://onlinelibrary.wiley.com/doi/10.1111/sum.12341/abstract</subfield></datafield><datafield tag="856" ind1="4" ind2="2"><subfield code="u">https://search.proquest.com/docview/1911029420</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_USEFLAG_A</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">SYSFLAG_A</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_OLC</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">FID-BIODIV</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">SSG-OLC-GEO</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">SSG-OPC-GGO</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">SSG-OPC-FOR</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_22</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2026</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2346</subfield></datafield><datafield tag="936" ind1="b" ind2="k"><subfield code="a">38.60</subfield><subfield code="q">AVZ</subfield></datafield><datafield tag="936" ind1="b" ind2="k"><subfield code="a">48.32</subfield><subfield code="q">AVZ</subfield></datafield><datafield tag="951" ind1=" " ind2=" "><subfield code="a">AR</subfield></datafield><datafield tag="952" ind1=" " ind2=" "><subfield code="d">33</subfield><subfield code="j">2017</subfield><subfield code="e">2</subfield><subfield code="h">243-251</subfield></datafield></record></collection>
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