TY  - BOOK
AU  - Abd El Hady,Mohamed Rida
TI  - Studies on zinc and manganese status of Dakahlia Governorate soils
PY  - 1990///
KW  - Soils
KW  - Heavy metal content
KW  - Manganese content
KW  - Zinc content
N1  - Thesis (M.S.)-- El-Mansoura University, 1990; Includes bibliographical references (leaves 82-94); Microfiche; ASUNET; Ain Shams University; 2 microfiches : negative
ER  -