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Soil organic carbon and 13C abundance as related to tillage, crop residue, and nitrogen fertilization under continuous corn management in Minnesota

, : Soil organic carbon and 13C abundance as related to tillage, crop residue, and nitrogen fertilization under continuous corn management in Minnesota. Soil and Tillage Research 55(3/4): 127-142

Soil organic carbon (SOC) and natural abundance 13C ( delta 13C) were sensitive to tillage, stover harvest, and nitrogen (N) management during 13 years of continuous maize, grown on a Haplic Chernozem soil in Minnesota, USA. Contents of SOC in the 0-15 cm layer in the annually-tilled (mouldboard (MB) and chisel (CH)) plots decreased slightly with years of maize after a low input mixture of lucerne (Medicago sativa) and oat (Avena sativa) for pasture; stover harvest had no effect.


DOI: 10.1016/s0167-1987(00)00110-0

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