Carbon sequestration in a Brown Chernozem as affected by tillage and rotation

摘要: Soil organic matter is important because it influences the productivity and physical well-being of soils. Recently, increased attention has focussed on soil as a possible sink for C02-C. Despite this interest, there lack data quantifying effect tillage matter. Between 1981 1994, two experiments were conducted at Swift Current, Saskatchewan, Swinton loam, an Orthic Brown Chernozemic soil. Organic C N monitored periodically to quantify effects crop rotation [continuous spring wheat (Cont W) (Triticum aestivum L.) vs. fallow–wheat (F-W)] management [no-tillage (NT) conventional (CT) involving primarily use cultivator rodweeder]. The snow was also evaluated in one experiment, but factor not significant. changes mainly observed 0- 7.5-cm depth. Carbon greater both concentrations amounts Cont...