02239nam a2200913 a 450000100080000000500110000800800410001902000180006010000170007824500250009525000100012026000310013030000100016152003580017165000130052965000190054265000090056165000110057065000130058165000090059465000150060365000150061865000140063365000090064765000110065665000090066765000100067665000100068665000150069665000160071165000130072765000180074065000130075865000100077165000110078165000130079265000120080565000130081765000170083065000100084765000130085765000140087065000090088465000160089365000100090965000230091965000120094265000100095465000100096465000150097465000120098965000090100165000090101065000100101965000100102965300180103965300120105765300130106965300090108265300120109165300120110365300180111565300100113365300090114365300140115265300100116665300110117665300100118765300130119765300080121065300120121865300110123065300150124165300090125665300120126565300120127770000180128970000180130712618791993-06-21       1975    bl uuuu      00u1 u    #d  a0-8134-2151-91 aBOONE, L. V.  aProducing farm crops  a3.ed.  aDanville: Interstatec1975  a303p.  aWhy study crop production? our changing agriculture; Plants in our lives; Classification of crop plants; Where crops are grown; Improving crops; Soils and crop production; Tilling the soil; The small grains; Corn; Soybeans; The sorghums; Silage; Crops for forage and pasture; Diseases and insect pests of crops; Weeds and their control; Farm management.  abreeding  aclassification  acorn  acotton  adrainage  aflax  aharvesting  airrigation  amarketing  arice  asilage  asoil  aweeds  awheat  aAdubação  aAgricultura  aAlgodão  aAlimentação  aAmendoim  aArroz  aCavalo  aColheita  aDoença  aDrenagem  aErva Daninha  aFibra  aGirassol  aHerbicida  aÍon  aIrrigação  aLinho  aMatéria Orgânica  aMercado  aMilho  aÓleo  aProdução  aSemente  aSoja  aSolo  aSorgo  aTrigo  aClassificacao  aControl  aControle  aCrop  aCultivo  aDisease  aFertilization  aFiber  aFood  aHerbicide  aHorse  aMatter  aMulch  aNematode  aOil  aOrganic  aPeanut  aProduction  aSeed  aSorghum  aSoybean1 aRICHER, A. C.1 aWILSON, H. K.