Effects of soil disinfection with different chemicals on growth and rhizosphere microbes of Capsicum annuum
Soil-borne diseases and continuous cropping obstacles pose prominent challenges in vegetable production in protected greenhouse.In this study,three agents,dazomet,dimethyl disulfide,and carbendazim,were selected for soil disinfection.The effects of these different chemical treatments on the growth and rhizosphere microbes of capsicum were determined by measuring soil enzyme activity,microbial quantity,agronomic traits,and pepper yield.The results showed that the activity of urease,sucrase,and catalase in soil were initially inhibited and then activated after treatment with the three chemicals.Following soil disinfection,fungal and bacterial numbers in the soil were inhibited,with the inhibitory effect gradually weakening over time.All three soil disinfection methods led to an increase in pepper yield,among which dimethyl disulfide treatment demonstrating the most obvious effect,resulting in a yield increase of 55.19％.
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