BiocharTechnology for Sustainable Horticulture

2021 ◽  
Vol 13 (15) ◽  
pp. 8532
Author(s):  
Michael M. Blanke ◽  
Sabine D. Golombek

(1) Background: Black plastics pose a general problem in sustainability issues, as the recycling is hampered by the black colour disguising the type of plastics in the NIR scanner on the garbage sorting belt, as the black colour absorbs NIR radiation. Sorting flower/plant pots suffer from their additional soil contamination in the strive for sustainable flower production in horticulture. As these black plastic flowerpots are currently rarely recycled, a study was instigated of reusing them based on Heino Schwarz’s innovative idea. (2) Methods: In the first step, the carbon footprint was calculated for the flowerpots of two sizes employed in the nursery, their customised production from virgin polypropylene and the delivery from the Netherlands to the nursery in Bavaria. In step 2, the carbon footprint was calculated based on PAS 2050-1 for the number of flowerpots in circulation and return rates in 2019 and in 2020 to assess the GHG saved by the innovation. (3) Results: The innovative concept of Heino Schwarz is a discount on returning the customised used flowerpots, with a 40% increase from 24,533 returned flowerpots in 2019 to 39,797 in 2020. This shows the increasing acceptance and environmental awareness of the consumer and the great success. (4) Conclusions and outlook: The present case study has shown that innovative approaches such as discounts for reused/returned flowerpots of the Schwarz nursery can save 3.85–4.56 t CO2eq, a valuable contribution to reducing GHG emissions, creating environmental awareness among the consumers and building a close B2C relationship. The amount of CO2eq saved is equivalent to ca. 40% of the annual carbon burden of a European/German citizen or ca. 23,000 km driven in a private vehicle, the average mileage driven privately in two years.


2018 ◽  
Vol 1 (3) ◽  
Author(s):  
Siamak Shirani Bidabadi

The technology of vermicomposting containing their leachates, teas and other extracts such as vermiwash as a result of earthworm action is widely applied for safe management of agricultural, industrial, domestic and hospital wastes. Remediation of polluted soils, improving crop productivity and inducing the resistance against biotic and abiotic stresses are other advantages of vermicompost derived liquids when used in agriculture. Contrary to the fact that chemical fertilizers are still widely used in agriculture, societies gradually become aware of the negative effects of these fertilizers on their health. Therefore, vermicompost derived liquids contain high amount of valuable plant nutrients which has the potential to be used as liquid fertilizer. This paper reviews the potential of vermicompost derived liquids as as an efficient combination of nutrient source of vermicompost derived liquids contributing to plant growth and acting as a deterrent to biotic and abiotic stresses.


1998 ◽  
Vol 67 (6) ◽  
pp. 1220-1223
Author(s):  
Byoung Yil Lee

2009 ◽  
Author(s):  
Rob Cross ◽  
Roger Spencer

The third title in the CSIRO Gardening Guide series, Sustainable Gardens by Roger Spencer and Rob Cross shows how horticulture can contribute towards a more sustainable future. Written for home gardeners, professional horticulturists, landscapers, and all those passionate about cultivated landscapes, this book examines the steps we can take towards harmonising gardening activity with the cycles of nature. Two outstanding botanists from the Royal Botanical Gardens in Melbourne, Roger and Rob have produced a genuine gardening bible for our times. They show how every gardener – both professional and amateur – can contribute positively to environmental stewardship. Gardens may be consumers of resources, but the negative effects of this consumption can be minimised and can be offset by some of the positive contributions gardens make. Roger and Rob explain the connections between human activity, resource depletion, and environmental degradation. They show how to conduct an audit of gardening practices, materials, and results so that every gardener can measure the impact he or she is having on nature. They show: how to minimise the impacts on nature of our consumption of water, materials and energy in the garden; how to make gardens more environmentally friendly through design, construction and maintenance phases; the importance of biodiversity and how horticulture can help protect natural systems; and the role that gardening can play in alleviating the environmental impacts of food production. Checklists are provided so that gardeners can ensure they are taking the most sustainable path through each phase of gardening – design, construction, maintenance. The book ends with a guide round an existing garden that combines physical beauty with sustainability, and discusses future trends for sustainable horticulture. In an increasingly urbanised world, parks and gardens are our main point of contact with nature. If we can maximise the environmental benefits of our gardens, public spaces and landscapes, we will make a huge contribution to sustainable living. This book if the first to show us how.


Sign in / Sign up

Export Citation Format

Share Document