00349    a2200121   4500020001500000082001300015100001700028245005700045260004600102300001800148650004100166700002000207  a8170962449  a630bGUP  aGupta, A. K.  aPractical manual for agricultural chemistrybpart II  aNew DelhibKalyani publishersc1989g1989  ax,118p.c21cm  aAGRICULTURE AND RELATED TECHNOLOGIES  aVarshney, M. L.