00298nam a2200121 a 450000500170000008200130001710000260003024500270005625000110008326000400009430000260013463000160016020251202164157.0  a630bSUB  aSubbiah Mudaliar V.T.  aPrinciples of agronomy  a6th ed  aBangalorebBangalore Printingc1984  axx,566 p.b22 cm.cHB  aAgriculture