01743nam a2200493 a 450000100080000000500110000800800410001902000180006010000170007824500540009526000390014930000100018852005450019865000160074365000160075965300160077565300160079165300090080765300220081665300130083865300230085165300150087465300120088965300110090165300200091265300130093265300250094565300160097065300150098665300230100165300240102465300100104865300220105865300120108065300240109265300130111665300220112965300130115165300100116465300260117465300170120065300100121770000220122710067082015-07-15       1975    bl uuuu      00u1 u    #d  a0-8138-1575-41 aHEADY, E. O.  aSpatial sector programming models in agriculture.  aAmes : Iowa State Universityc1975  a484p.  aPrototype model of regional production adjustment; Land qualities and crop production capacity; Aggregate effects of government policies; Capacity, interregional adjustment and land use; Adjustment in crop and livestock production; A model incorporating farm-size and land classes; Trade-offs in farm policy; Farm policy, and rural income and employment models; Water demand, land use, and farm policy models; Environmental quality and land and water use; Quadratic programming os spatial equilibrium; A national grain transportation model.  aAgricultura  aAgriculture  aAgricultura  aAgriculture  aAgua  aAspecto economico  aAspectos  aEconomic situation  aEconomicos  aEconomy  aEstado  aEstudo e ensino  aLand use  aLivestock production  aMatematicos  aMathematic  aMathematical model  aMathematical models  aModel  aModelo matematico  aModelos  aModelos matematicos  aPecuaria  aPolitica agricola  aProducao  aState  aStudy and instruction  aUso da terra  aWater1 aSRIVASTAVA, U. K.