الفهرس Only 14 pages are availabe for public view
 |  | from | 192 |  |  |
| | | from | 192 | | |
Abstract
The preseny study was conducted in two experiments : the objective of the first experiment to determine the response of polyculture of mullet and telapia yield to varying levels of chemical fertilizers (urea+super phosphate).The aim of the second experiment is to find the optimum intervals for application frequency of the chemical fertilizers that realize high yields of primary productivity and fish.