Effect of soil amendments on nodulation and nitrogen fixation in certain Egyptian soils [microform] /
Atef Fathalla Mohamed.
- 1992.
- 89, 4 leaves : ill. ; 30 cm.
Thesis (M.S.)--Ain Shams University, 1992.
Includes bibliographical references (leaves 80-89)
Microfiche. ASUNET, Ain Shams University, 2 microfiches : negative.