The use of recycled growing media in organic herb production in commercial greenhouse

商业温室有机药草生产中回收栽培介质的使用

• 批准号: 515023-2017
• 负责人: Jabaji, Suha
• 金额: $ 1.82万
• 依托单位: McGill University
• 依托单位国家: 加拿大
• 项目类别: Engage Grants Program
• 财政年份: 2017
• 资助国家: 加拿大
• 起止时间: 2017-01-01 至 2018-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=639691
• 关键词: use; recycled; growing; media; organic

PROBLEM: Van Luyk Greenhouses and Garden Centre, uses soilless growing media for growing andmaintaining plants in containers. When plants are transplanted or harvested, the spent growing media aredirected to landfills. Around 24% of the spent soilless mix which amounts to 1/4 truckload is directed tolandfills. In the company's greenhouse plant production activity, 3.5% of the cost of materials is spent onpurchasing soilless mix which amounts to about $ 20,000/year. As a consequence, only 75% of the soillesssubstrate is sold with container plants to customers. Thus, the Company's motivation is to prevent this wasteand be able to recycle and reuse the spent substrate. This approach is economically sound by reducing costs ofmaterials and of disposing it. Greenhouse industry in general could economically benefit by recycling spentsoilless mix which protects our environment.OBJECTIVE: The proposed collaboration with McGill arises from the need of the industrial partner, to testcrop response to the cultivation in spent soilless potting substrate, and to characterize and re-optimize itsphysical and nutrient properties so the spent potting mix will perform equally well as the original virgin pottingmix.BENEFITS: Improvement of nutrient efficiency, physical and biological stability of spent soilless mix inhorticulture is a research priority for sustainable production and environmental reasons. Knowledge acquiredthrough this study about physical, chemical and microbial properties of the soilless mix before and afterplanting cycle will help the company make decisions and implement soilless media recycling proceduresincluding recycling conditions, ratio of virgin to recycled media ratio, fertigation and disease managementstrategies.

问题：Van Luyk温室和花园中心使用无土栽培介质来种植和维护容器中的植物。当植物被移植或收获时，废弃的生长基质被送往垃圾填埋场。约24%的废弃无土混合物相当于1/4卡车，被直接用于填埋。在该公司的温室植物生产活动中，3.5%的材料成本用于购买无土混合物，相当于每年约20,000美元。因此，只有75%的无土基质与集装箱工厂一起出售给客户。因此，该公司的动机是防止这种浪费，并能够回收和再利用废基材。这种方法在经济上是合理的，因为它降低了材料和处理成本。温室产业一般可以通过回收无土废弃混合物来保护我们的环境而获得经济利益。目的：与McGill的拟议合作源于产业合作伙伴的需要，以测试作物对废弃无土盆栽基质栽培的反应，并表征和重新优化其物理和营养特性，使废弃盆栽混合物的表现与原始原始盆栽混合物一样好。本菲茨：提高园艺中废弃无土混合物的营养效率、物理和生物稳定性是可持续生产和环境原因的研究重点。通过这项研究获得的关于种植前和种植后无土混合物的物理、化学和微生物特性的知识将帮助公司做出决策并实施无土介质回收程序，包括回收条件、原料与回收介质的比例、施肥和疾病管理策略。