KẾT QUẢ NGHIÊN CỨU CÁC BIỆN PHÁP BẢO QUẢN HÀNH TẠI NÔNG HỘ

The composition of dieases of onion in storage include 6 species, of wich one bacterila and 5 fungal pathogents. The most important agents are Erwinia carotovora Jone causing seriuos disease damage on inion in the storage, resulting in tuber bad smell and rot. Moreover, other pathogents such as Fusarium sp., Aspergillus niger, A. flavus,...causing substantial crop losses since the pathogents occur and damage from the second month after the storage and last for the whole storage peroid. The diseases can be managed by using fungicides namely Balatcide 32 WP, Kocide 53,8 DF giving high control efficacy reducing disease incidence about 41.7 - 52.3 % in comparision to check treatment after 5 months of their storage.