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| 1 | Nitrous oxide fluxes from maize fields: relationship to yield, site-specific fertilization, and soil conditions显示文摘 | Sehy U Ruser R Munch J C | 2003 | Agriculture Ecosystems and Environment2003，99，13： | 1 |
| 2 | Nitrous oxide fluxes from maize fields:relationship to yield,site-specific fertilization,and soil conditions显示文摘 | SEHY U RUSER R AND MUNCH J C | 2003 | Agriculture Ecosystems & Environment2003，99，13： | 1 |
| 3 | Re-estimating OSHA's effects: Have the data changcd? 显示文摘 | J Ruser R Smith | 1991 | The Journal of Human Resources1991，26，2： | 1 |
| 4 | Nitrous oxide fluxes from maize fields:re-lationship to yield,site-specific fertilization,and soil conditions显示文摘 | Sehy U Ruser R Munch J C | | 0，，1： | 1 |
| 5 | Nitrous Oxide Fluxes from Maize Fields: Relationship to Yield, Site-Specific Fertiliza- tion, and Soil Conditions 显示文摘 | Sehy U Ruser R Munch J C | 2003 | Agriculture Ecosystems and Environment2003，99，13： | 1 |
| 6 | Emission of N2O,N2 and CO2 from soil fertilized with nitrate:effect of compaction,soil moisture and rewetting显示文摘 | Ruser R Flessa H Russow R Schmidt G Buegger F Munch J C | | 0，，： | 1 |
| 7 | ORGANIC CARBON STOCKS IN A SILTY TEXTURED SOIL FOLLOWING REINTEGRATION OF A 20 YEARS OLD MISCANTHUS×GIGANTEUS SITE INTO A CROP ROTATION显示文摘Miscanthus×giganteus may play an important role in replacing fossil energy resources by bio-based alternatives.One further advantage of miscanthus production is the generally high soil organic carbon(C_(org))enrichment in soils.Due to declining yields,miscanthus stocks are commonly reintegrated into crop rotation after approximately 20 years.Currently there is only few information,whether these high amounts of(C_(org))can be conserved while intensifying soil tillage and crop management after reintegration.Therefore,we monitored(C_(org))stocks in a control with more than 20 years of continuous miscanthus and in a treatment with reintegration of a 20-years old miscanthus stock into an organic crop rotation.Based onδ^(13)C soil values,we calculated an annual(C_(org))enrichment of 0.98 Mg·ha^(-1)·yr^(-1)C under miscanthus.More than 95%of the miscanthus-C was determined in the upper 0.25 m of soil.Continuing miscanthus cultivation did not affect yields during the first five extension years and(C_(org))stocks increased further.Following reintegration,(C_(org))stocks remained constant during five years,which was mainly attributed to the humification and/or stabilization of high amounts of destroyed roots and rhizomes.A significant decrease in(C_(org))(-5.7 Mg·ha^(-1)C)compared to the continuing miscanthus cultivation was at first measured six years after reintegration into crop rotation,underlining the need of long-term investigations.Our data also show,that miscanthus production cycles can be extended in our region,and that sowing of the alfalfa grass mixture after rhizome/root destruction was efficient in preserving(C_(org))stocks for at least first five years after reintegration. | Lisa ESSICH Reiner RUSER Jens HARTUNG Anne HANEMANN Meike GASSNER Liam OBERDORFER Jörn BREUER Jürgen RECKNAGEL Helmut NUßBAUMER Torsten MÜLLER | 2023 | Frontiers of Agricultural Science and Engineering2023，10，2： | 0 |
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