TY - BOOK AU - Mukteshwar Kumar TI - Characterization and Influence of Fulvic Acids on Zinc Transport and Plant Nutrition in Calcareous Soil U1 - 631.42 PY - 1986/// CY - Pusa, Samastipur PB - RAU KW - Soil Science KW - Calcareous Soil KW - Plant Nutrition KW - Thesis KW - Ph. D ER -