00475nam a2200157Ia 4500003000400000008004100004082001800045245008100063260003400144300001300178650003400191650004100225650001900266650001400285700001800299OSt170901s1976    xx            000 0 und d  a631.422bK16S 0aSoil Fertility : theory and practice / ccompiled and edited by J. S. Kanwar  a.- New Delhib: ICARc, 1976.  aXI,518p.  aTechnology (Applied Sciences)  aAgriculture and Related Technologies  aSoil Fertility  aBook Bank  aKanwar, J. S.