TY  - BOOK
AU  - El-Shakweer,Mohamed Hammad Atia
TI  - Nitrogen balance studies for different soils cropped with cotton and corn
PY  - 1967///
KW  - Soils
KW  - Nitrogen content
KW  - Cotton
KW  - Fertilizers
KW  - Corn
N1  - Thesis (M.S.)--Alexandria University, 1967; Includes bibliographical refences (leaves 124-134); Microfiche; ASUNET; Ain Shams University; 3 microfiches : negative
ER  -