TY - BOOK AU - KHAMPARIA, R S et al. TI - Four decades of research on management of micro-and secondary-nutrients and pollutant elements in crops and soils of Madhya Pradesh U1 - 631.811(543.1)IIS PY - 2010/// CY - Indian Institute of Sil Science PB - Bhopal KW - Heavy metal pollution KW - Madhya Pradesh KW - Nutrient deficiency KW - Nutrient interaction ER -