Environmental Studies

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agric horizon

A Dictionary of Ecology | 2004 | | Copyright

agric horizon A mineral-soil diagnostic horizon, formed from an accumulation of clay, silt, and humus, which has moved down from an overlying, cultivated soil layer. It is a soil horizon created by agricultural management, and is identified by its near-surface position, and by colloids accumulated in the pores of the soil.

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MICHAEL ALLABY. "agric horizon." A Dictionary of Ecology. 2004. Encyclopedia.com. 1 Jun. 2012 <http://www.encyclopedia.com>.

MICHAEL ALLABY. "agric horizon." A Dictionary of Ecology. 2004. Encyclopedia.com. (June 1, 2012). http://www.encyclopedia.com/doc/1O14-agrichorizon.html

MICHAEL ALLABY. "agric horizon." A Dictionary of Ecology. 2004. Retrieved June 01, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O14-agrichorizon.html

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agric horizon

A Dictionary of Earth Sciences | 1999 | | Copyright

agric horizon Mineral-soil diagnostic horizon formed from an accumulation of clay, silt, and humus, which has moved down from an overlying, cultivated soil layer. It is a soil horizon created by agricultural management, and is identified by its near-surface position, and by colloids accumulated in the pores of the soil.

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AILSA ALLABY and MICHAEL ALLABY. "agric horizon." A Dictionary of Earth Sciences. 1999. Encyclopedia.com. 1 Jun. 2012 <http://www.encyclopedia.com>.

AILSA ALLABY and MICHAEL ALLABY. "agric horizon." A Dictionary of Earth Sciences. 1999. Encyclopedia.com. (June 1, 2012). http://www.encyclopedia.com/doc/1O13-agrichorizon.html

AILSA ALLABY and MICHAEL ALLABY. "agric horizon." A Dictionary of Earth Sciences. 1999. Retrieved June 01, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O13-agrichorizon.html

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agric horizon

A Dictionary of Plant Sciences | 1998 | | Copyright

agric horizon A mineral-soil diagnostic horizon formed from accumulation of clay, silt, and humus, which has moved down from an overlying, cultivated soil layer. It is a soil horizon created by agricultural management, and is identified by its near-surface position, and by colloids accumulated in the pores of the soil.

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Pick a style below, and copy the text for your bibliography.

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MICHAEL ALLABY. "agric horizon." A Dictionary of Plant Sciences. 1998. Encyclopedia.com. 1 Jun. 2012 <http://www.encyclopedia.com>.

MICHAEL ALLABY. "agric horizon." A Dictionary of Plant Sciences. 1998. Encyclopedia.com. (June 1, 2012). http://www.encyclopedia.com/doc/1O7-agrichorizon.html

MICHAEL ALLABY. "agric horizon." A Dictionary of Plant Sciences. 1998. Retrieved June 01, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O7-agrichorizon.html

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