Abstract
Abstract Snap beans (Phaseolus vulgaris) were grown using conventional tillage (CT) and no‐tillage (NT) soil management following either hairy vetch (Vicia villosa Roth) or rye (Secale cereale L.) in 1992 and 1993 in the mountain regions of Georgia near Blairsville. Soil bulk density and inorganic nitrogen content as well as crop dry matter production and yield were monitored. Soil bulk density of the surface (0 to 10 cm) layer under NT exceeded that under CT at planting by as much as 0.33 Mg/m3. However, growth‐limiting bulk densities (values>1.45 Mg/m3) did not occur under either tillage regime. Inorganic soil nitrogen to a depth of 30 cm at planting and at five weeks after planting was similar for the two tillage systems. However, soil nitrogen (N) tended to be greater following hairy vetch than following rye. There were no significant effects of tillage or cover crop on plant stand or plant dry weight. Total yields were generally similar regardless of tillage or cover crop. A notable exception was tha...
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