00961    a2200169   4500003000500000005001700005040000900022082001200031100002100043245006100064250001100125260004200136300002900178505054300207600002100750650002000771Nust20230104130502.0  cNust  a630,HUG  aHarold D. Hughes  aCrop production /cHarold D. Hughes & Darrel S. Metcalfe  a3rd ed  aMacmillan Publishing CobLondonc1972  axi , 627 pbillusc24 cm  aAgriculture beginnings (Page-1), World production distribution (Page-10), US production distribution (Page-27), The world food population problem (Page-41), Agricultural production adjustments (Page-57), Climate weather and crops (Page-71), Water use by crops (Page-142), Irrigation ,drainage and dryland farming (Page-156), The soil and croping practices (Page-176), Wheat and rye (Page-352), The soybean crop (Page-370), Potatos (Page-430), Alfalfa (Page-503), Dryland grasses (Page-567), Crop enemies (Page-577), Crop terms (Page-602).  aHarold D. Hughes  aCrop production