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100   $a20190319d1967      uy             0
101 0 $aeng
135   $aur|||||||||||
181   $ctxt$2rdacontent
182   $cc$2rdamedia
183   $acr$2rdacarrier
200 00$aMaximum crop yields $ethe challenge /$fsponsored by the American Society of Agronomy, Crop Science Society of America, Soil Science Society of America
210  1$aMadison, Wisconsin :$cAmerican Society of Agronomy,$d1967.
215   $a1 online resource (xi, 92 pages)
225 1 $aASA Special Publication ;$vNumber 9
311   $a0-89118-029-X 
410  0$aASA special publication ;$vNumber 9.
606   $aField crops$zUnited States
606   $aCorn$zUnited States
615  0$aField crops
615  0$aCorn
676   $a633.00973
712 02$aAmerican Society of Agronomy,
712 02$aCrop Science Society of America,
712 02$aSoil Science Society of America,
801  0$bWaSeSS
801  1$bWaSeSS
906   $aBOOK
912   $a9910644275203321
996   $aMaximum crop yields$93007705
997   $aUNINA