Nitrogen content and C/N ratio in straw are the key to affect biological nitrogen fixation in a paddy field

• Published in: Plant and soil Vol. 481; no. 1-2; pp. 535 - 546
• Main Authors: Zhang, Yanhui, Hu, Tianlong, Wang, Hui, Jin, Haiyang, Liu, Qi, Chen, Zhe, Xie, Zubin
• Format: Journal Article
• Language: English
• Published: Cham Springer International Publishing 01.12.2022; Springer; Springer Nature B.V
• Subjects: Abundance; Agricultural land; Agricultural research; Agriculture; Biomedical and Life Sciences; Carbon; Carbon sources; Carbon/nitrogen ratio; Chemical properties; Community composition; community structure; Cyanobacteria; DNA; Ecology; Environmental aspects; Fixation; Fluorescence; genes; Genetic aspects; Labeling; Life Sciences; Microorganisms; Next-generation sequencing; NifH gene; Nitrogen; nitrogen content; Nitrogen fixation; Nitrogen-fixing bacteria; Nitrogenation; paddies; Physiological aspects; Plant Physiology; Plant Sciences; Poplar; Populus; quantitative polymerase chain reaction; Research Article; Rice; RNA; soil; Soil Science & Conservation; Straw; Wheat; Wheat straw; China; direct labelling; RNA gene; Biological nitrogen fixation; gene; N; Carbon sources

Background and aims Straw amendment can increase nitrogen fixation in paddy field, however, the efficiency of carbon sources with different biochemical properties to enhance N 2 fixation and nitrogen fixation activity is still unclear. Methods A 15 N 2 -labelling system was used in the field environ...