Effect of long-term application of bioorganic fertilizer on the soil property and bacteria in rice paddy

• Published in: AMB Express 2023-06, Vol.13 (1), p.60-60, Article 60
• Main Authors: Li, Zu-ren, Luo, Si-quan, Peng, Ya-jun, Jin, Chen-zhong, Liu, Du-cai
• Format: Article
• Language: English
• Subjects: Agricultural ecosystems; Anaeromyxobacter; Bacteria; Bacterial community; Biological control; Biomedical and Life Sciences; Bioorganic weeding fertilizer; Biotechnology; Candidatus Koribacter; Chemical properties; Enzymatic activity; Fertilizers; Haliangium; Herbicides; Life Sciences; Long-term; Microbial Genetics and Genomics; Microbiology; Organic matter; Original; Original Article; Rice fields; Rice paddy; rRNA; Soil bacteria; Soil chemistry; Soil microorganisms; Soil properties; Species diversity; Weed control; Weeds
• ISSN: 2191-0855; 2191-0855
• DOI: 10.1186/s13568-023-01559-2

The application of novel bioorganic fertilizer (BIO) has been established as a weed biocontrol strategy, and reduce herbicides pollution and negatively effects on agricultural ecosystems. However, its long-term influences on soil bacterial communities are unknown. Here, 16 S rRNA sequencing to identify the changes that occur in soil bacterial community and enzyme under BIO treatments after five years in a field experiment. BIO application effectively controlled weeds, however no obvious differences between treatments were observed under BIO-50, BIO-100, BIO-200 and BIO-400 treatment. Anaeromyxobacter and Clostridium_ sensu_ stricto_1 were the two dominant genera among BIO-treated soil samples. The BIO-800 treatment had a slight influence on the species diversity index, which was more remarkable after five years. The seven significantly-different genera between BIO-800 treatment and untreated soils included C._sensu_stricto_1 , Syntrophorhabdus , Candidatus_Koribacter , Rhodanobacter , Bryobacter , Haliangium , Anaeromyxobacter . In addition, BIO application had different effects on soil enzymatic activities and chemical properties. The extractable P and pH saliency correlated with Haliangium and C._Koribacter , and C._sensu_stricto_1 observably correlated with exchangeable K, hydrolytic N and organic matter. Taken together, our data suggest that BIO application effectively controlled weeds and a slight influence on soil bacterial communities and enzymes. These findings expand our knowledge of the application of BIO as widely used as a sustainable weed control in rice paddy.