Production and marketing of cereal grains is one of main activities in low income countries farming system. However, yields are very low due to several factors associated with traditional practices. Despite low productivity, the postharvest loss (PHL) of grains mainly during storage is high due to storage pests. The study was conducted to assess storage related losses of grains (maize and sorghum) and compare aboveground and underground storage methods to minimize losses associated with traditional storage structures. In first phase of the study, base line data were collected using focus group discussion, key informants interview and semi-structured questioners. In the second phase, underground and aboveground storage methods were investigated along with their control for better stability of stored maize and sorghum. The survey result showed that, storage related losses (due to different factors) of maize and sorghum were 14.2 and 11.5% respectively. The major identified causes of losses were storage pests and losses due to seepage. In the second phase, from studied storage structures, grains stored in pit storage with PVC layer showed superior stability and quality in terms of prevention of pest attacks and proximate composition, respectively. The study demonstrated that, underground storage method supported with PVC lining was efficient in terms of enhancing storage stability of grains with required quality for consumption or marketing.

谷物的生产和销售是低收入国家农业系统的主要活动之一。然而，由于与传统做法相关的几个因素，产量非常低。尽管生产力低下，但由于仓储害虫，主要在贮藏期间的谷物采后损失 (PHL) 很高。该研究旨在评估谷物（玉米和高粱）的储存相关损失，并比较地上和地下储存方法，以尽量减少与传统储存结构相关的损失。在研究的第一阶段，使用焦点小组讨论、关键知情人访谈和半结构化提问者收集基线数据。在第二阶段，研究了地下和地上储存方法及其控制，以提高储存的玉米和高粱的稳定性。调查结果显示，玉米和高粱的储存相关损失（由于不同因素）分别为 14.2% 和 11.5%。已查明的主要损失原因是仓储害虫和渗漏造成的损失。在第二阶段，从研究的存储结构来看，在具有 PVC 层的坑式存储中存储的谷物在防止虫害和近似成分方面分别表现出优异的稳定性和质量。研究表明，PVC衬里支持的地下储存方法在提高具有消费或销售所需质量的谷物的储存稳定性方面是有效的。储存在带有 PVC 层的坑式仓库中的谷物在防止虫害和近似成分方面分别表现出优异的稳定性和质量。研究表明，PVC衬里支持的地下储存方法在提高具有消费或销售所需质量的谷物的储存稳定性方面是有效的。储存在带有 PVC 层的坑式仓库中的谷物在防止虫害和近似成分方面分别表现出优异的稳定性和质量。研究表明，PVC衬里支持的地下储存方法在提高具有消费或销售所需质量的谷物的储存稳定性方面是有效的。