جامعة عين شمس - كلية الزراعة - الميكروبيولوجيا الزراعية
الفهرس
Introduction
REVIEW OF LITERATURE
MATERIALS AND METHODS
Only 14 pages are availabe for public view
from
250
from
250
Abstract
The aquatic fern azolla is widely distributed in tropical and subtropical countries it floats on the surface of shallow ponds, canals rivers and fix atmospheric N2