01657oam 2200493Ka 450 991069216270332120031202140642.0(CKB)5470000002351806(OCoLC)53815260ocm53815260(OCoLC)995470000002351806(EXLCZ)99547000000235180620031202d1995 ua 0engurcz||||||txtrdacontentcrdamediacrrdacarrierFertilization in dryland cropping systems[electronic resource] a brief overview /Merle F. Vigil[Akron, Colo.] :USDA-ARS,[1995?]Conservation tillage fact sheet ;#4-95Title from title screen (viewed on Oct. 21, 2003)."Central Great Plains Research Station."Includes bibliographical references.Fertilization in dryland cropping systems SoilsNitrogen contentSoilsPhosphorus contentDry farmingColoradoDry farmingKansasDry farmingNebraskaSoilsNitrogen content.SoilsPhosphorus content.Dry farmingDry farmingDry farmingVigil Merle F(Merle Francis)1380727United States.Agricultural Research Service.United States.Central Great Plains Research Station.GPOGPOBOOK9910692162703321Fertilization in dryland cropping systems3422738UNINA