Tuesday, November 6, 2007
204-12

Crop Rotations and Conservation Agriculture Impacts on Soil Carbon.

Mariela Fuentes, Colegio de Postgraduados, Texcoco, Mexico, Jorge Etchevers, MEXICO,Col.Postgraduados, Laboratorio de Fertilidad de Suelos, Colegio de Postgraduados, Chapingo/Montecillo, 56230, MEXICO, Charles W. Rice, 2701 Throckmorton Hall, Kansas State University, Kansas State University, Department of Agronomy, Manhattan, KS 66506-5501, Kenneth Sayre, CIMMYT, CIMMYT Apdo. #370, PO Box 60326, Houston, TX 77205-0326, Roberto Izaurralde, 8400 Baltimore Ave ., Suite 201, Battelle PNNL, Joint Global Change Research Institute, Pacific Northwest National Lab and U. of Maryland, College Park, MD 20740-2496, and Allison M. Thomson, Pacific Northwest National Laboratory, Joint Global Change Research Institute, 8400 Baltimore Ave., Suite 201, College Park, MD 20740.

Soil C was measured to a depth of 30 cm in a lnog-term (16 years) trial at CIMMYT, Mexico to examine the effects of different tillage, crop rotations, and residue management. Zero tillage with residue retention had the greatest soil C values while zero tillage without residue retention had the least amount of soil C. Residue retention impacted the soil quality and grain production which has implications on the sustainability of these cropping systems.

Back to Management Effects on Soil Carbon and Phosphorus
Back to S06 Soil & Water Management & Conservation

Back to The ASA-CSSA-SSSA International Annual Meetings (November 4-8, 2007)