00436 a2200121 4500 199640 199640 631.4 SON/OP Soniya V P Optimization of soil environment and crop response for magnesium nutrition in ultisol College of Horticulture , KAU, Vellanikkara Dept. of soil science and agricultural chemistry 2019 Soil science Agricultural chemistry Dr.Bhindhu P S TH 0 0 ddc 0 0 KAUCOA KAUCOA 2019-08-22 0 631.4 SON/OP KAU_COA-T-1924 2019-08-22 00:00:00 2019-08-22 TH