Activation effect of soil available nitrogen, manganese and cobalt after addition of different fumigants

Abstract Soil fumigation is a well-established method for controlling soil-borne diseases. Better quantification of soil available nitrogen and trace elements may provide recommendations on the safe effective application fumigants. The effects four fumigants (including Mn, Co, Ni, Cu, Zn Cd) were investigated in laboratory incubation with agricultural soil. results showed that increased mineral Ni. A significant increase NH 4 + -N Mn was observed all treatments. Chloropicrin treatments largest -N. In addition, chloropicrin dazomet Co to greater extent than dimethyl disulfide 1,3-dichloropropene Available content after has by 2.2 times compared control treatments, also 2.8 more untreated control. fumigated soil, steady beneficial nutrient uptake plants. created an activation effect elements, which their bioavailability plants promote plant growth.