TY - BOOK AU - Austria, Basilio R TI - Response of virginia tobacco (nicotina tobacum L. Var MRS-3) to levels and methods of iron and zinc application PY - 1982/// KW - Tobacco--Analysis KW - Plants, Effect of iron on KW - Plants, Effect of chemicals on N1 - Thesis (MS Agronomy) -- University of the Philippines, Los Banos, Laguna; Bibliography: leaves 75-78 ER -