{"id":"W2899542509","doi":"10.1016/j.soilbio.2018.11.006","title":"Isotopic evidence for episodic nitrogen fixation in switchgrass (Panicum virgatum L.)","year":2018,"lang":"en","type":"article","venue":"Soil Biology and Biochemistry","topic":"Soil Carbon and Nitrogen Dynamics","field":"Agricultural and Biological Sciences","cited_by":68,"is_retracted":false,"has_abstract":true,"ca_institutions":"","funders":"Biological and Environmental Research; Great Lakes Bioenergy Research Center; College of Engineering, Michigan State University; Office of Science; U.S. Department of Energy; McGill University; China Scholarship Council; Michigan State University; National Science Foundation","keywords":"Panicum virgatum; Rhizosphere; Biology; Nitrogen fixation; Panicum; Agronomy; Growing season; Perennial plant; Botany; Ecology; Bioenergy; Bacteria","routes":{"ca_aff":false,"ca_fund":true,"ca_venue":false,"about_ca":false,"invisible_to_affiliation_only":true},"retraction":null,"screen":null,"direct_labels":[],"prediction":{"model_version":"codex-gemma-dda1882f352a","candidate_categories":[],"consensus_categories":[],"category_scores_codex":[0.0002193472,0.0001245279,0.0001410944,0.000009596462,0.0001203638,0.00001770163,0.0001486608,0.000267428,0.00004464569],"category_scores_gemma":[0.0001861631,0.00005637895,0.00005671668,0.0001701709,0.0001965325,0.00004078897,0.00005552333,0.00009314053,0.000008230265],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.0000225677,"about_ca_system_score_gemma":0.0000150124,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.000254555,"about_ca_topic_score_gemma":0.001108245,"domain_scores_codex":[0.9991619,0.00003284994,0.0001706488,0.0003324598,0.00004405884,0.0002581115],"domain_scores_gemma":[0.9995507,0.0002002893,0.00006750618,0.00005883488,0.00006094794,0.00006169352],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"bench_or_experimental","study_design_gemma":"bench_or_experimental","study_design_scores_codex":[0.00008134576,0.00002567626,0.2716478,0.00001389407,0.000008350587,6.464281e-7,0.00001722774,3.533885e-8,0.7132415,0.0001267155,0.00009975844,0.01473712],"study_design_scores_gemma":[0.0006470424,0.0006829323,0.26711,0.00009458036,0.00003230315,0.00002587458,0.0002760856,0.001544678,0.7077157,0.02004772,0.001312672,0.0005104317],"study_design_candidate":"bench_or_experimental","study_design_consensus":"bench_or_experimental","genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.9977937,0.0008159385,0.000006285232,0.0008783675,0.0001110958,0.000134466,0.00002899045,0.00003033118,0.0002008355],"genre_scores_gemma":[0.998823,0.0001187145,0.00005642138,0.0003475427,0.0004028092,0.00003836814,0.00009051413,8.727004e-7,0.0001216933],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.019921,"threshold_uncertainty_score":0.2299067,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.02411730065949371,"score_gpt":0.2752891244843503,"score_spread":0.2511718238248566,"validation_status":"score_only:v0-immature-baseline","note":"Baseline scores from an immature model (maturity gate not passed). Scores rank; they never assert a category."}}