Organic Matter and Nitrogen in an Ultisol as Affected by Cropping and Tillage System after Seven Years
نویسندگان
چکیده
The experiments were conducted at Green Acres Agronomy farm near Gainesville, Florida, on an Arredondo loamy sand, a member of the loamy, silicious, hyperthermic family of grossarenic Paleudults. The field study started in 1976 included cropping systems of oat (Avena sativa)/soybean (Glycine max L. Merr.) versus oat/grain sorghum (Sorghum bicolor L.) that were split plots of four tillage treatments: No-tillage subsoil, no-tillage, conventional tillage subsoil, and conventional tillage. Tillage treatments were whole plots in a randomized complete block with four replications.
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