School of the Environment, Natural Resources and Geography, Bangor University, Gwynedd LL57 2UW, UK.
Waste Manag. 2010 Aug-Sep;30(8-9):1495-501. doi: 10.1016/j.wasman.2010.01.032. Epub 2010 Feb 25.
We successfully co-composted catering waste with green waste and shredded paper to yield two high-nitrogen composts for use in horticulture. Sunflowers (Helianthus annuus L.) were grown in various mixtures of the compost and a commercially available peat-based compost to assess the efficacy of catering waste-based composts for peat replacement. Height, head diameter, seed mass and above-ground biomass were measured, with all mixtures giving a significant increase in yield or size over the commercially available peat-free control compost. We conclude that differences in physical structure governed sunflower growth over substrate chemistry, and none of the compost mixtures were nutrient deficient. We recommend that catering waste co-compost can be substituted to at least 75% within Sphagnum-based traditional growing media, providing a viable replacement for a large proportion of peat used as a growth medium in the horticulture industry. Our catering waste compost yielded similar seed head, seed mass and above-ground biomass values to 100% peat-based compost in all food waste compost blends tested in this study.
我们成功地将餐饮垃圾与绿色垃圾和碎纸一起进行共堆肥，制成两种高氮堆肥，用于园艺。我们在各种混合堆肥和市售基于泥炭的堆肥中种植向日葵（Helianthus annuus L.），以评估餐饮垃圾堆肥替代泥炭的效果。测量了株高、头径、种子质量和地上生物量，所有混合物的产量或大小都比市售无泥炭对照堆肥有显著提高。我们得出的结论是，基质化学性质对向日葵生长的影响不如物理结构，而且没有一种堆肥混合物存在营养不足的情况。我们建议，在基于泥炭藓的传统种植基质中，至少可以用 75%的餐饮垃圾共堆肥替代，为园艺行业中用作生长介质的大部分泥炭提供了一种可行的替代品。在本研究中测试的所有餐饮垃圾堆肥混合物中，我们的餐饮垃圾堆肥在所有测试的食物垃圾堆肥混合物中产生的种子头、种子质量和地上生物量值与 100%基于泥炭的堆肥相似。
