00393nam a2200133Ia 4500008004100000082001700041100001900058245002800077260005500105300000800160650004100168650003400209653001600243170901s1992    xx            000 0 und d  a631.81bG96H  aGustafson, A.F 0aHandbook of Fertilizers  aNew DelhibAgro Botanical Publishers (India)c1992  a160  aAgriculture and related technologies  aTechnology (Applied sciences)  aFertilizers