ศูนย์นวัตกรรมเทคโนโลยีหลังการเก็บเกี่ยว

Loss assessment methods for durable stored products in the tropics: appropriateness and outstanding needs.

Wright, M. A. P.;

Tropical Science Year: 1995 Vol: 35 Issue: 2 Pages: 171-185 Ref: 93 ref.

1995

บทคัดย่อ

This paper reviews recent work on storage losses in the Tropics and aims to assess whether the loss figures produced reflect the farmers' perception of loss, to establish whether the methodologies used are appropriate, and to assess how realistic the economic values attributed to losses are. The methods used in loss assessment studies must relate to the person or group suffering those losses. Greater farmer participation is needed. Self-contained loss assessment studies may be important for planning and evaluating programmes, but the emphasis should be on loss reduction projects, with loss assessment playing a much less prominent role. Sufficient methodology already exists for detailed weight loss measurement. Rapid loss assessment methods are sufficiently accurate for most purposes and should be used in field studies. For some crops or farming systems, novel loss assessment methodologies may be needed. Further work is required on calibrating rapid visual loss scales against non-weight loss crit

eria, elaborating losses at the trader/intermediary level and comparing actual with perceived losses at different points in the marketing chain.