Effects of Ionized Water Addition on Soil Nitrification Activity and Nitrifier Community Structure

Water ionization is an efficient physical water treatment technology, and crop nutrient use efficiencies can be improved using ionized for irrigation. In order to explore the effect of on soil nitrification nitrifying microorganisms, we conducted a laboratory incubation experiment with addition ordinary under different contents (equal 30%, 60%, 100% 175% field capacity, θFC). During incubation, analyzed inorganic nitrogen transformation, ammonia oxidation gene abundances microbial community structure. The results showed that, no matter adding or water, rate abundance oxidizing bacteria in 100%θFC were significantly higher than those other conditions, while archaea was not affected by content. With same content, stronger that treatment. Although absolute ammonia-oxidizing microorganisms lower (p < 0.05), relative some dominant genera 0.05). may play key role process. show irrigation promote silt loam soil, especially regulate affecting microorganisms. This study provides theoretical basis understanding biological regulation mechanism transformation application