00388nam a2200121Ia 4500008004100000082002700041100001700068245010700085260002900192300001400221600001500235650001600250140224s9999    xx            000 0 und d  a631.8:658.8:633.002 N2  aSankaram, A.  aPreparation and marketing crop-tailored fertilizer mixtures to sustain prodictivity and profitability.  aMadrasbA.Sankaramc1992  avii,177p.  aA.Sankaram  aFertilizers