00705nam a2200265 a 450000100080000000500110000800800410001910000200006024500790008026000500015930000100020949000340021965000190025365000090027265000110028165000090029265300200030165300120032165300150033365300220034870000200037070000190039070000140040970000160042314821622018-05-17       1992    bl uuuu      00u1 u    #d1 aPETERSON, G. A.  aCrop and soil management in dryland agroecosystems.h[electronic resource]  aFort Collins: Colorado State Universityc1992  a59 p.  a(Technical Bulletin, TB92-2).  aagroecosystems  asoil  aManejo  aSolo  aAgroecossistema  aDryland  aManagement  aRegiao Semi-arido1 aWESTFALL, D. G.1 aSHERROD, W. L.1 aMcGEE, E.1 aKOLBERG, R.