TY  - BOOK
AU  - Hassan Mohamed Ahmed Mohamed Elkotb 
AU  - Nabila Hassan Bassioni , 
AU  - Sayed Taha Abouzeid , 
AU  - Youssef Ali Abdelaal , 
TI  - Comparative study on the influence of biofertilizers and chemical nitrogen fertilizers on rice growth / 
PY  - 1998///
CY  - Cairo : 
PB  - Hassan Mohamed Ahmed Mohamed Elkotb , 
N1  - Thesis (M.Sc.) - Cairo University - Faculty of Agriculture - Department of Soil Science
UR  - http://172.23.153.220/th.pdf
ER  -