Composting Events and news
The perennial weeds shown in the wheelie bins in a previous blog posting have now been moved to the Composting Demonstration plot. We were impressed with the artistic arrangement of the dock at the top of the pile. The mound will now be shaped, covered with black plastic to exclude the light and air, and left to decompose. As can be seen there is a lot of soil on the weeds much of which could have be knocked off and kept on the plot but at least if all works well it will all be ready to be reused in about a year .
Halloween need not be the Festival of Food waste
It is estimated that in the UK up to four million pumpkins are brought to carve and display over Halloween with the edible flesh of these pumpkins being discarded as waste and ending up with most of the lanterns in landfill. This produces an additional 18,000 tons of landfill waste directly attributable to the Halloween festivities. This, according to the environmental charity Hubbub, is equivalent to 360 million portions of pumpkin pie. The U.S. Department of Agriculture states that 1.91 billion pounds of pumpkins where grown in the USA in 2014 most of which, as in the UK, where used for carving and then thrown away,
Much of this waste is due to people being unaware of the versatility of pumpkin flesh as a food or not realising that the fresh discarded when carving the pumpkin can be eaten. It is calculated that in the UK only 33% cook the fresh of the pumpkins they carve out this will leave 12.8 million pumpkins uneaten this Halloween.
On this basis, farmers are growing acres of food just for it to be thrown away. Families and all food fanatics can all help reduce waste at Halloween by taking part in, or organising Covid-19 compliant, Pumpkin Rescue activities.
Although we are limited in what we can do this year community groups, local authorities, Environmental and Food Groups, Allotment Societies, Schools can also organise Covid compliant activities for their members at home or one the net.
Carve it, Cook it, Eat it, Compost it
Join us in reducing pumpkin waste while celebrating Halloween
- Provide pumpkin recipes and cooking advice to friends, community groups, schools, and clubs. Links to websites are provided.
- Get creative and carve your pumpkin at home photograph the pumpkin and carvers at home, or school before sending the Photographs to us to include on our carryoncomposting.com website. (Email email@example.com) Encourage carvers to cook the flesh from the pumpkins
- Competition Time Adults can join in and enter the Hubbub competitionSend a photo of your pumpkin carved and cooked, and be in with a chance to win one of two sets of these stunning pumpkin-esque Le Crueset cast iron dishes, and a selection of Toast Ale (made from rescued bread!)Details from https://www.hubbub.org.uk/eat-your-pumpkin-competition-terms-conditions Entry Closes 31st October 2020 at 12pm
- Compost the remains of your carved pumpkin. Due to restrictions we cannot hold our Pumpkin Smash at Stokes Wood Allotment Compost Demonstration Site this year. (In 2019 we had over 100 pumpkins to smash and compost) but they are easy to compost at home. Join in and send us photos of the smash or composting. A downloadable PowerPoint presentation is available at the bottom of this page.
5. Pumpkin Recipes Every year over a quarter of all Halloween pumpkins end up in landfill – that’s 18,000 tonnes of food waste with the flesh of many pumpkins going straight to the food waste bin or composting heap without being eaten - Hubbub and the local Pumpkin Rescue team are urging pumpkin carvers across the county and city to join this year’s Pumpkin Rescue and reduce the waste sent to landfill,
Weeds in the car park.
Wheelie bins full of weeds have been left in the car park at our allotment. While it is not good allotment practise to leave weeds for someone else to deal with it does present an interesting composting challenge.
Perennial weeds can be composted using a hot composting system, or pre-treated to kill them by drying, drowning in a bin or being kept in the dark for a couple of years. With so many weeds left at one time and as most seem to have a significant amount of topsoil attached to their roots, most of these methods are impracticable in the space we have so I am going to use light exclusion by building a weed mound where the weeds will be heaped in a mound covered with black plastic and left for a year, or two if they contain significant amounts of couch grass. If once the wheelie bins are emptied, they are found to contain weed infested turves these will be stacked grass side to grass side. The idea is to produce good quality loam saving all the topsoil someone had intended to just throw away
To be continued….
Biodegradable Glitter Revisited
In the lead up to Halloween and Christmas I thought it might be a good time to update our information on Microplastics and glitter with information just published
Recent research suggests that biodegradable alternatives may be little or no better for the environment than “traditional” PET glitter in respect to the effects of on root length and chlorophyll levels which were almost identical to those of traditional glitter. New research led by Dr Dannielle Green of Anglia Ruskin University and published in the Journal of Hazardous Materials (Vol 402. 124070) indicates after 36 days, the presence of glitter halved the root length of common duckweed (Lemna minor), while levels of chlorophyll in the water were three times lower than in control conditions, indicating reduced levels of phytoplankton, or microalgae.
The only significant difference was a two-fold increase in
the abundance of an invasive species of New Zealand mud snails (Potamopyrgus antipodarum) in water containing the biodegradable MRC glitter. Dr Green, Senior Lecturer in Biology
at Anglia Ruskin University (ARU), is reported as saying that “Our study is the first to look at the effects of glitter in a freshwater environment and we found that both conventional and alternative glitters can have a serious ecological impact on aquatic
ecosystems within a short period of time. “All types, including so-called biodegradable glitter, have a negative effect on important primary producers which are the base of the food web, while glitter with a biodegradable cellulose core has an additional
impact of encouraging the growth of an invasive species.
“We believe these effects could be caused by leachate from the glitters, possibly from their plastic coating or other materials involved in their production, and our future research will investigate this in greater detail.”
Further information on glitter and Christmas waste can be found at Christmas Waste