00386    a2200097   4500082001800000100001500018245009000033260010500123650004100228700001900269  a631.4bSON/OP  aSoniya V P  aOptimization of soil environment and crop response for magnesium nutrition in ultisol  aCollege of Horticulture , KAU, VellanikkarabDept. of soil science and agricultural chemistry c2019  aSoil scienceaAgricultural chemistry  aDr.Bhindhu P S