A note on the effects of some soil sterilants on the mineralisation and nitrification of soil‐nitrogen

Dazomet, D‐D, metham‐sodium, and methyl isothiocyanate were applied to seven glasshouse and four field soils; methyl bromide was applied to two of the field soils. In both the glasshouse and field, all sterilants retarded nitrification of ammonium‐N, and in some soils they increased the mineralisation of soil organic‐N; dazomet had most effect and metham‐sodium least. In field soils, methyl bromide increased the mineralisation of soil organic‐N more than the other sterilants.