ศูนย์นวัตกรรมเทคโนโลยีหลังการเก็บเกี่ยว

Grain drying in Vietnam: problems and priorities.

Phan Hieu Hien; Nguyen Hung Tam; Truong Vinh; Nguyen Quang Loc;

Grain drying in Asia: Proceedings of an International Conference held at the FAO Regional Office for Asia and the Pacific, Bangkok, Thailand, 17-20 October, 1995. Year: 1996 Pages: 57-66 Ref: 11 ref.

1996

บทคัดย่อ

Vietnam has become a major producer and exporter of rice in recent years. Drying of high-moisture paddy harvested in the rainy season is a major problem which must be overcome to reduce postharvest losses and increase rice quality in Vietnam. Issues in grain drying are discussed in the context of a short harvest time. The following constraints are identified: lack of compatible technologies including hardware; lack of understanding of the mechanical drying process in both design and operation; and lack of extension activities. Available solutions are discussed, a striking example being the current use of about 600 units of 4-t flatbed driers in the Mekong Delta provinces of southern Vietnam. Other promising technologies under evaluation or pilot application are presented: 2-stage in-store drying; one-stage low-temperature drying; rapid first-stage drying with a fluidized-bed drier. Proposed priorities in action include a campaign to regenerate awareness that drying problems can be solved; an ext

ensive technology transfer programme to drier users and builders; a banking credit scheme to speed up the dissemination of drying technology; and continued applied research in grain drying for the diverse conditions of Vietnamese rice production.