肯尼亚非农储粮采后损失量及其影响因素的评价

An assessment of the magnitudes and factors associated with postharvest losses in off-farm grain stores in Kenya

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中文摘要:在肯尼亚,非农储粮是政府、贸易商及加工商重要的采后经营环节。本研究于2014/2015年开展调查,评估了在非农储粮试验中,感知的损失种类和数量及其相关因素。本研究为评估当前的非农储粮技术、采取可能的改进措施提供了重要依据。建议减少玉米采后损失的创新也应以非农储粮为目标,因其招致的采后损失惨重。
外文摘要:Off-farm grain storage is an important postharvest undertaking by government, traders and processors in Kenya. A survey was conducted in 2014/2015 to assess the kinds and magnitudes of perceived losses experienced in off-farm stores, and the factors associated with them. Store supervisors or key personnel charged with grain storage in 39 public and 74 private stores, spread across the six maize growing agro-ecological zones, were interviewed using a structured questionnaire. Total perceived losses averaged 17.6 +/- 23%, and were attributed to insects (7.2 +/- 1.0%), molds (5.7 +/- 2.1%), moisture loss (3.4 +/- 0.5%), rodents (2.0 0.5%), spillage (0.50 +/- 0.0%) and birds (0.10 +/- 0.0%). Total losses experienced in public and privately owned stores were not significantly different. The losses attributed to insect and the vertebrate pests, moisture loss and spillage, were also not significantly different in the two storage systems. However, losses due to molds were significantly higher in the private stores. From regression analysis, higher losses were associated with the use of residual insecticides, purchasing low quality maize for storage, reuse of storage bags, untimely control of storage pests, and the agro-climatic conditions of the moist transitional, moist mid-altitude and dry mid-altitude zones. Relying on infestation reports to initiate pest control had the highest marginal effect (21.7%). Lower loss magnitudes were associated with cleaning and drying grain before storage, early pest control and storage periods shorter than two months. These findings provide important reasons for appraising current off-farm storage techniques with a view to taking possible actions for improvements. It is recommended that innovations to mitigate maize postharvest losses should also target off-farm storage, as the losses incurred are significant.
外文关键词:Postharvest;Off-farm storage;Maize;Losses;Kenya
作者:Mwangi, JK;Mutungi, CM;Midingoyi, SKG;Faraj, AK;Affognon, HD;AF Mwangi, Joseph K.;Mutungi, Christopher M.;Midingoyi, Soul-Kifouly G.;Faraj, Abdul K.;Affognon, Hippolyte D.
作者单位:Int Ctr Insect Physiol & Ecol
期刊名称:JOURNAL OF STORED PRODUCTS RESEARCH
期刊影响因子:1.533
出版年份:2017
出版刊次:-
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  1. 编译服务:农产品质量安全
  2. 编译者:虞德容
  3. 编译时间:2017-11-13