Effect of controlling the clubroot disease of sugukina by the application of converter slag for soil amendments.

摘要

This experiment was conducted in Kyoto, Japan, in 1992-95, to examine the efficacy of LD steel slag to control clubroot disease on sugukina [Brassica campestris var. neosuguki]. A field that had been damaged badly by clubroot disease was divided in to four plots and treated as follows: (plot 1) LD steel slag 40 t ha-1 + fulsulfamide 200 kg ha-1; (plot 2) LD steel slag only; (plot 3) fulsulfamide only; (plot 4) untreated. The quality of crops ware compared. The best quality crops were found in plots 1 and 2. LD steel slag controlled the disease and maintained the acid level in the soil effectively.