02361nas 2200625-a 450 991069347410332120210927213032.01947-7260(OCoLC)316804092(CKB)1000000000717086(CONSER)--2009230736(EXLCZ)99100000000071708620090323a20059999 -a- aengur|||||||||||txtrdacontentcrdamediacrrdacarrierTrace gas exchanges in Midwest cropping systems ... annual reportWashington, D.C. U.S. Dept. of Agriculture, Agricultural Research ServiceHTML filesDescription based on: 2005; title from title screen (viewed Mar. 23, 2009).Latest issue consulted: 2008.Greenhouse gasesMiddle WestPeriodicalsCropping systemsMiddle WestPeriodicalsAtmospheric carbon dioxidePhysiological effectMiddle WestPeriodicalsAtmospheric nitrous oxideMiddle WestPeriodicalsNitrogen in agricultureMiddle WestPeriodicalsAtmospheric carbon dioxidePhysiological effectfast(OCoLC)fst00820377Atmospheric nitrous oxidefast(OCoLC)fst00820448Cropping systemsfast(OCoLC)fst00883953Greenhouse gasesfast(OCoLC)fst00947707Nitrogen in agriculturefast(OCoLC)fst01038098Middle WestfastPeriodicals.fastPeriodicals.lcgftGreenhouse gasesCropping systemsAtmospheric carbon dioxidePhysiological effectAtmospheric nitrous oxideNitrogen in agricultureAtmospheric carbon dioxidePhysiological effect.Atmospheric nitrous oxide.Cropping systems.Greenhouse gases.Nitrogen in agriculture.363Global Change National Program (U.S.)United States.Agricultural Research Service.GPOGPOJOURNAL9910693474103321Trace gas exchanges in Midwest cropping systems ... annual report3161768UNINA