00437nam a2200157Ia 4500008004100000082001900041100001500060245005000075260002600125300000700151650004100158650003400199653001600233653001000249700002000259170901s1987    xx            000 0 und d  a633.1589bJ20F  aJain, G.L. 0aFertilizer use for intensive maize production  aNew DelhibICARc1987  a77  aAgriculture and related technologies  aTechnology (Applied sciences)  aFertilizers  aMaize  aMahapatra, I.c.