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231224s2013 xx |||||o 00| ||eng c |
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|a 10.1111/j.1365-2486.2012.02779.x
|2 doi
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|a pubmed25n0753.xml
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|a (DE-627)NLM225899191
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|a (NLM)23504719
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|a DE-627
|b ger
|c DE-627
|e rakwb
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| 041 |
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|a eng
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| 100 |
1 |
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|a van Kessel, Chris
|e verfasserin
|4 aut
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| 245 |
1 |
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|a Climate, duration, and N placement determine N2 O emissions in reduced tillage systems
|b a meta-analysis
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| 264 |
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1 |
|c 2013
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| 336 |
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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| 338 |
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|a ƒa Online-Ressource
|b cr
|2 rdacarrier
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| 500 |
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|a Date Completed 19.06.2013
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|a Date Revised 09.01.2024
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a © 2012 Blackwell Publishing Ltd.
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|a No-tillage and reduced tillage (NT/RT) management practices are being promoted in agroecosystems to reduce erosion, sequester additional soil C and reduce production costs. The impact of NT/RT on N2 O emissions, however, has been variable with both increases and decreases in emissions reported. Herein, we quantitatively synthesize studies on the short- and long-term impact of NT/RT on N2 O emissions in humid and dry climatic zones with emissions expressed on both an area- and crop yield-scaled basis. A meta-analysis was conducted on 239 direct comparisons between conventional tillage (CT) and NT/RT. In contrast to earlier studies, averaged across all comparisons, NT/RT did not alter N2 O emissions compared with CT. However, NT/RT significantly reduced N2 O emissions in experiments >10 years, especially in dry climates. No significant correlation was found between soil texture and the effect of NT/RT on N2 O emissions. When fertilizer-N was placed at ≥5 cm depth, NT/RT significantly reduced area-scaled N2 O emissions, in particular under humid climatic conditions. Compared to CT under dry climatic conditions, yield-scaled N2 O increased significantly (57%) when NT/RT was implemented <10 years, but decreased significantly (27%) after ≥10 years of NT/RT. There was a significant decrease in yield-scaled N2 O emissions in humid climates when fertilizer-N was placed at ≥5 cm depth. Therefore, in humid climates, deep placement of fertilizer-N is recommended when implementing NT/RT. In addition, NT/RT practices need to be sustained for a prolonged time, particularly in dry climates, to become an effective mitigation strategy for reducing N2 O emissions
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|a Journal Article
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|a Meta-Analysis
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| 650 |
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|a Research Support, Non-U.S. Gov't
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| 650 |
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|a Review
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| 650 |
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7 |
|a Nitrous Oxide
|2 NLM
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| 650 |
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7 |
|a K50XQU1029
|2 NLM
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| 650 |
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7 |
|a Nitrogen
|2 NLM
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| 650 |
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7 |
|a N762921K75
|2 NLM
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| 700 |
1 |
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|a Venterea, Rodney
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Six, Johan
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Adviento-Borbe, Maria Arlene
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Linquist, Bruce
|e verfasserin
|4 aut
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| 700 |
1 |
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|a van Groenigen, Kees Jan
|e verfasserin
|4 aut
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| 773 |
0 |
8 |
|i Enthalten in
|t Global change biology
|d 1999
|g 19(2013), 1 vom: 08. Jan., Seite 33-44
|w (DE-627)NLM098239996
|x 1365-2486
|7 nnas
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| 773 |
1 |
8 |
|g volume:19
|g year:2013
|g number:1
|g day:08
|g month:01
|g pages:33-44
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| 856 |
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|u http://dx.doi.org/10.1111/j.1365-2486.2012.02779.x
|3 Volltext
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|a GBV_ILN_350
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|a AR
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|d 19
|j 2013
|e 1
|b 08
|c 01
|h 33-44
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