共查询到19条相似文献,搜索用时 234 毫秒
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近年来,在粮食储藏过程中以储粮生态学为理论基础,以调控生态因子为主要手段.通过自然强制制冷及无公害综合防治害虫体系,达到储粮品质无劣变、无污染的绿色储粮.成为当前储粮工作的一个新课题。保粮磷就是一种拌合于原粮,专门防治储粮害虫,高效、低毒、符合国家卫生标准、不污染、不影响粮食品质.应用微胶襄化技术的新型谷物防护剂,该防护剂是一种黄色粉状物.主要有效成分为1.01%杀螟硫磷、溴氰菊脂, 相似文献
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新中国50余年储粮技术的发展,经历了物控、化防、气控、综合防治4个阶段。综合防治能将经济、社会和生态效益有机结合,是储粮技术发展的必然趋势。这一理论应用于当前中国储粮实际,可以概括为4句话:清洁卫生不可少;PH3王牌不能倒;防护剂要用好;绿色储粮要跟上。1清洁卫生不可少1.1可有效破坏储粮害虫外界生活环境,减少害虫对储粮的感染,减轻其它防治的压力大多数储粮害虫都喜欢生活在温暖、潮湿、食物充足、肮脏的地方,尤其是洞、缝、孔、阴暗角落等处。清洁卫生防治可破坏害虫外界生存环境,减少其对储粮的感染。1.… 相似文献
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本文就储粮害虫、粮食微生物等有害生物的发生发展与环境条件关系进行了探讨,并提出控制储粮有害生物的看法。 相似文献
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所谓储粮,就是从粮食收获后到消费前之间的贮存过程,在储粮过程中除了对其进行科学管理外,还要严格防范害虫对储粮的侵害,因为害虫不但使粮食重量和品质下降,还有可能引起疾病的传播,严重影响消费者的身体健康。文章从我国储粮虫害现状着手,分析了储粮害虫防治存在的问题,并探究了提高储粮害虫防治工作水平的有效对策,以期为广大储粮工作者提供有益的经验借鉴。 相似文献
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为顺应粮食市场发展的要求,改造仓房,改善储粮条件,科学调节储粮水分、温度、害虫三因子,合理控制粮堆生态维持较弱代谢水平,减少储粮损失损耗,保持粮食品质,达到安全、经济、有效的储粮原则,提升仓储管理经济效益。 相似文献
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针对进口大豆保管过程中遇到的储粮害虫防治难题,中央储备粮日照仓储有限公司积极响应国家关于保障食品安全的总体要求,在分析相关虫种生活习性的基础上,多措并举,积极探索储粮害虫综合防治策略,通过物理防治与化学防治相结合的方式,抑制虫害的发生发展,实现储粮熏蒸率逐年降低,有效夯实了绿色储粮管理基础。 相似文献
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针对在储粮仓房中常用的害虫诱捕方法诱捕效率低,测报率低等问题,设计了立地式定时自动杀虫诱捕器,通过将原有悬挂式的诱捕器改进为立地式定时自动杀虫诱捕器,使其操作简单、使用便捷。并将其应用于储粮仓房中,试验与应用结果表明该诱捕器不但能及时了解害虫在仓内的种类数量变化动态,而且对于害虫的预报要强于传统的扦样过筛法检查,可及时发现并采取措施灭杀害虫。该诱捕器在仓内害虫密度不大时,可以控制害虫增长,减少磷化氢熏蒸次数甚至可做到少熏蒸或不熏蒸,实现绿色储粮,达到综合防治储粮害虫目的。 相似文献
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Betelhem M. Negede Hugo De Groote Bart Minten Maarten Voors 《Journal of Agricultural Economics》2024,75(1):137-152
Seasonal price variability for cereals is two to three times higher in Africa than on the international reference market. Seasonality is even more pronounced when access to appropriate storage and opportunities for price arbitrage are limited. As smallholder farmers typically sell their production after harvest, when prices are low, this leads to lower incomes as well as higher food insecurity during the lean season, when prices are high. One solution to reduce seasonal stress is the use of improved storage technologies. Using data from a randomised controlled trial, in a major maize-growing region of Western Ethiopia, we study the impact of hermetic bags, a technology that protects stored grain against insect pests, so that the grain can be stored longer. Despite considerable price seasonality—maize prices in the lean season are 36% higher than after harvesting—we find no evidence that hermetic bags improve welfare, except that access to these bags allowed for a marginally longer storage period of maize intended for sale by 2 weeks. But this did not translate into measurable welfare gains as we found no changes in any of our welfare outcome indicators. This ‘near-null’ effect is due to the fact that maize storage losses in our study region are relatively lower than previous studies suggested—around 10% of the quantity stored—likely because of the widespread use of an alternative to protect maize during storage, for example a cheap but highly toxic fumigant. These findings are important for policies that seek to promote improved storage technologies in these settings. 相似文献
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