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ARS Home » Midwest Area » Morris, Minnesota » Soil Management Research » Research » Publications at this Location » Publication #102876
Title: SOIL ORGANIC MATTER IN CRP AND POST-CRP LAND

Author
item Lindstrom, Michael
item SCHUMACHER, T - SOUTH DAKOTA STATE UNIV
item AMDAHL, C J - SOUTH DAKOTA STATE UNIV
item SCHUMACHER, J - SOUTH DAKOTA STATE UNIV

Submitted to: Agronomy Abstracts
Publication Type: Abstract Only
Publication Acceptance Date: 11/4/1999
Publication Date: N/A
Citation: N/A

Interpretive Summary:

Technical Abstract: The objectives of this study are to measure soil organic matter content and the organic fraction larger than 1 mm by depth increments in CRP and post-CRP lands as influenced by post-CRP tillage management. Experimental sites were established in west central Minnesota in a traditional corn-soybean rotation and in central South Dakota in a traditional winter wheat-fallow rotation. Tillage systems imposed on the post-CRP lands ranged from conventional full width intensively tilled to no-till. The soil organic matter content and organic matter fraction larger than 1 mm in the CRP and post-CRP lands were measured by depth increment to 30 cm. The near surface increase in soil organic matter content developed during CRP rapidly disappeared in all tilled systems. The organic fraction larger than 1 mm decreased with cropping regardless of tillage management. Results show that the best alternative to maintain benefits in soil organic matter contents in post-CRP lands is no-till.