00578cam a22001694a 4500008004100000020001800041100002100059245009100080250001400171260006200185260005600247300003400303650001700337650001600354650001700370050002100387040106s2005    njuab    b    001 0 eng    a97881203433081 aAcquaah, George.10aPrinciples of crop production :btheory, techniques, and technology /cGeorge Acquaah.  a[2nd ed.]  aUpper Saddle River, N.J. :bPearson Prentice Hall,c2005.  aNew Delhi, IndiabPHI Leaning Private Limitedc2005  axxvii, 740 p. :bill., maps ; 0aField crops. 0aFood crops. 0aCrop yields.00aSB185b.A27 2005