Zakaria Mohamed Abd El-Haleem Khedr|Workshops

Workshop / Conference	Year
Proceeding of the six Arabian conf. for horticulture, March 20-22,2005 Suez canal univ.Ismailia.Egypt.	2005
Conf. In untraditional tools in prod. And improvement of agriculture crops	2004
The 10 th international conf. for plant nutrition during 8-12/4/2000 cairo	2000
The seven conf for agriculture improvement researches fac of Agric. Ain shams univ. 15-17/12/1998	1998