A Field study of Biochar amended soils: Water retention and nutrient ...
Biochar and Low Organic Matter Soils
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Transcript of Biochar and Low Organic Matter Soils
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BIOCHAR AND LOW ORGANIC MATTER
SOILSDuane Friend
Extension Educator
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Acknowledgements Funding for the study was through the
Illinois Department of Agriculture Sustainable Ag Grant program
Additional assistance has been provided by the Illinois Sustainable Technology Center
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Field Study Details Plots at 3 field sites with low inherent soil organic
matter
Three replications of 0, 10 and 20 tons/acre (0, 24.7 tons/Ha, 49.4 tons/Ha) of biochar applied in 10 foot by 10 foot (305 by 305 cm) plots at each site
Each site planted to field corn, with normal agronomic operations
Examined soil changes, yield
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McCully Heritage (Calhoun County)
Site had been in alfalfa
Was plowed, with biochar then applied and tilled in
Site was hand seeded with Roundup Ready corn
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Central Illinois Irrigated Growers plot (Mason County)
Plot previously in field corn
Plot irrigated
Planted with Roundup Ready corn by farm operator
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Site M (Jim Edgar Conservation Area- Cass County)
Plot previously in soybeans
Plot part of strip till field
Planted to non Roundup Ready corn, by farm operator
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Organic Matter July 2012
Mason Cass Calhoun0
0.5
1
1.5
2
2.5
3
3.5
Control10 tons/Ac20 tons/Ac
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CEC values July 2012
Mason Cass Calhoun0
2
4
6
8
10
12
14
16
Control10 tons/Ac20 tons/Ac
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Control 10 tons/Ac 20 tons/ac0
10
20
30
40
50
60
Calhoun County Plots (Bushels/Ac)Harvested 9.13.12
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Mason County Plots (Bushels/Ac)Harvested 9.11.12
Control 10 tons/Ac 20 tons/Ac0
5
10
15
20
25
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Cass County Plots (Bushels/Ac)Harvested 9.6.12
Control 10 tons/Ac 20 tons/Ac0
10
20
30
40
50
60
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Organic Matter October 2012
Mason Cass Calhoun0
0.51
1.52
2.53
3.54
4.5
Control10 tons/Ac20 tons/Ac
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CEC Values October 2012
Mason Cass Calhoun0
2
4
6
8
10
12
14
16
Control10 tons/Ac20 tons/Ac
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Organic Matter May 2013
Mason Cass Calhoun0
1
2
3
4
5
6
Control10 tons/Ac20 tons/Ac
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CEC Values May 2013
Calhoun Cass Mason0
2
4
6
8
10
12
14
Control10 tons/Ac20 tons/Ac
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Soil pH values May 2013
Calhoun Cass Mason5.55.75.96.16.36.56.76.97.17.37.5
Control10 tons/Ac20 tons/Ac
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2013 Will continue to monitor plots in 2013
Will take additional soil samples and do yield checks