Plot test

ithaka Journal Home Garden Study Results

Ithaka Journal worked with home gardeners from across Switzerland to conduct a 2 year home garden test plot study. In the study, home gardeners aged the biochar in their own compost, and applied the biochar on a 1 Meter square test plot, then compared the results with an identically planted 1 Meter square control.

The results were mixed, and there were a lot of reasons given by the authors for this. The biggest variable that they isolated in the study was the compost. Apparently the quality of the compost varied quite a bit, and could easily have accounted for a lot of the mixed results.

Additionally, the biochar amended compost was mixed into the top few inches of the planting beds. Some crops are fairly shallow rooted, and that get good benefits from this type of amendment, but most plants will do better if the biochar is blended with good compost and soil and applied to the whole root zone. We've seen better results when the planting holes are amended.

the Methodology in full:

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With the addition of biochar compost, the cluster beans plant has grown upto 11 feet. With maximum of 20 beans in a cluster. I have not seen any records yet of such magnitude. This achievement is through the use of biochar compost. Hope the farmers could produce their own fertilizers using biochar and increase the productivity. On an average the plants have grown above 9 feet. Whereas the control plants (in plots without biochar compost) they have grown only 5 feet in height. This project is being implemented by GEO supported by GoodPlanet.org, France

From Cluster beans at GEO RC
From Cluster beans at GEO RC
From Cluster beans at GEO RC
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Oxford Biochar, Summer, 2011

Oxford Biochar is sponsoring a giantexperiment to test the effectiveness of Biochar in standard garden plots all across Britain.

The Big Biochar Experiment

The web site does a nice job of explaining what biochar is, and showing the benefits of adding it to your soil. Then it asks home gardeners to set up 2 plots, one a test, and one a control. Add the biochar, and record data about what types of things they added to both plots, the pest control needed and the yields from that plot are. It looks like it will do a nice job of seeing whether regular gardeners are likely to see results from biochar in the first year.

It's too late for spring planting, but it's just the right time for summer planting for fall crops. Information about the plot test, and tips for getting started and recording data are on the web page: http://www.bigbiocharexperiment.co.uk/get-started.html

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Arborists in Chicago are studying the results of biochar on trees growing in urban soils that are typically hostile to trees. This research is part of a larger urban-soils study that includes applications of biochar in greenhouse and field plot settings at The Morton Arboretum. The Bartlett Tree Research Laboratories have also been testing adding biochar to the soil mix when planting trees. More information and media coverage of this study about biochar and urban tree care can be found on the Bartlett Tree Experts web site.

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Biochar Fund, Kumba, Cameroon
Septemer, 2009

Since December 2008, more than 1500 subsistence farmers in Cameroon's South-West Region (SWR) have been participating in the largest-ever field trial testing the effects of biochar on crop productivity. The first results of this ongoing experiment, based on maize planted in a large series of plots, are now available. The data can be described as 'remarkable', in that they demonstrate how biochar consistently helps to boost crop productivity in tropical soils, sometimes in a spectacular manner.

The preliminary results suggest that biochar may offer a solution to hunger and food insecurity amongst the world's poorest, as well as to soil depletion and tropical deforestation.

Data Page with Current Results

Project Photo Pages with Participant and Plant Photos

See the Biochar Fund Report Page for an the Full Report, and continuing updates

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Field Trials;
 I am field testing for the 09 corn season with JMU and consultation  Dr. Hepperly at Rodale Institute.

Ten research priorities were identified at the IBI conference, The following priorities I hope to address:
• 1- Economy research/market research
• 2- plant+soil research depending on biochar
• 5- field trials
• 8- application to soil (depending on agricultural or other
systems/remediation`)

Planting date: June 24th.
Two split plots , which each are split into a 20% (27 tons/Ac) & 5% (7 tons/Ac) application rates,
All chars soaked in tarps for 1 month, all chars were mixed 1:2 by volume with finished poultry litter compost and roto-tilled to 5 inch depth.

CharDB 1.0 released!
Cristelle Braun, January 19, 2008

Hello dear biochar testers!

The first release 1.0 of CharDB is now available at:
http://bionecho.org/terrapreta/chardb/index.php

You will now be able to register your biochar soil amendment trials in a uniform format "CharML" that should facilitate comparisons between the different entries. This will hopefully lead to interesting new conclusions and a better knowledge on the fascinating world of biochar!

Please send any comment, critic, suggestion...to:
chardb@bionecho.org

Your feedback and comments will guide further development of CharDB and CharML!

Sincerely yours,
Chris
brauncch@gmail.com

Biochar Trials in Hangzhou, China (pdf)
Robert Flanagan, Saffe China, July 10, 2007

Select image below to see in Gallery
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This is a small trial I'm doing for some farmers just outside Hangzhou to show them the benefits of Biochar. I've 48 plots in all so 24 with rice husk charcoal addition at 20Kg per plot. This trial is not for scientific data collection we have that in another trial a little further outside town.

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Charcoal Experimental Plots
Rich Haard and Larry Williams at Fourth Corner Nurseries, Bellingham, Washington, May 6, 2007
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Examples of Soil Improvement at EPRIDA
Doug Clayton, April 2007

IMG_7237IMG_7237

Click on photo for full view

I took the pictures when I visited Danny Day at Eprida last month.

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