Differences in Soluble Organic Matter After 23 Years of Contrasting Soil Management

Toosi, E. R.; Castellano, M. J.; Singer, J. W.; Mitchell, D. C.

doi:10.2136/SSSAJ2011.0280

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Soil Science Society of America Journal · 2012

Differences in Soluble Organic Matter After 23 Years of Contrasting Soil Management

Toosi, E. R., Castellano, M. J., Singer, J. W., Mitchell, D. C.

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Differences in Soluble Organic Matter After 23 Years of Cont…

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Findings

What changed what, as the paper reports it. Grouped by the measured property. The largest groups are open; open the others as you need them.

soil organic carbon (SOC)

↑ 11

increase
no-tillage (NT) vs. conventional tillage (CT)significant · 0–125 cm · 30 Aug. 2010 · Agricultural Engineering Research Farm of Iowa State University · 0-125 cm; marginal NT versus CT averaged across five 25-cm layers, not separate layer tests; no compost, wheat/clover phase. Establishment stated 1988, but authors describe 23 years and 1987-2010.

Depth	Texture	Clay	pH	Organic C	Bulk density
0–25 cm	silty clay loam	27.6 % (from g/kg)	7.3	–	–
25–50 cm	–	36.4 % (from g/kg)	7.7	–	–
50–75 cm	–	32.9 % (from g/kg)	8.1	–	–
75–100 cm	–	18.3 % (from g/kg)	8.2	–	–
100–125 cm	–	11.8 % (from g/kg)	8.3	–	–

Differences in Soluble Organic Matter After 23 Years of Contrasting Soil Management

Findings

soil organic carbon (SOC)

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Differences in Soluble Organic Matter After 23 Years of Contrasting Soil Management

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Abstract

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