{"id":"W2031866586","doi":"10.4141/s02-028","title":"Cultivation and grassland type effects on light fraction and total organic C and N in a Dark Brown Chernozemic soil","year":2003,"lang":"en","type":"article","venue":"Canadian Journal of Soil Science","topic":"Soil Carbon and Nitrogen Dynamics","field":"Agricultural and Biological Sciences","cited_by":58,"is_retracted":false,"has_abstract":true,"ca_institutions":"","funders":"","keywords":"Agronomy; Organic matter; Grassland; Bromus inermis; Hordeum vulgare; Soil organic matter; Nutrient; Vegetation (pathology); Soil test; Soil water; Medicago sativa; Environmental science; Chemistry; Poaceae; Soil science; Biology","routes":{"ca_aff":false,"ca_fund":false,"ca_venue":true,"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":[0.0004264139,0.00007236134,0.0001003918,0.00005614069,0.0001748351,0.000104251,0.00006293765,0.00005023678,0.000008541571],"category_scores_gemma":[0.0004019396,0.00003378762,0.00001112128,0.0004803565,0.0001295316,0.0002102307,0.000006876321,0.0001355199,8.546059e-7],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.00008769578,"about_ca_system_score_gemma":0.0001382631,"about_ca_topic_candidate":true,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.002867395,"about_ca_topic_score_gemma":0.08432341,"domain_scores_codex":[0.999383,0.00003761535,0.0001135761,0.0001404074,0.0001358678,0.0001894884],"domain_scores_gemma":[0.9994232,0.00007137389,0.00007132358,0.00002136097,0.0000866863,0.0003260485],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"observational","study_design_gemma":"observational","study_design_scores_codex":[0.0000228924,0.00001076328,0.7132698,0.000007349739,0.000003736471,0.00003220448,0.0001801127,0.000006510662,0.2674527,0.0001251783,0.00005638221,0.01883239],"study_design_scores_gemma":[0.0001918885,0.000248664,0.9917352,0.00004654231,0.000004660755,0.0001627979,0.0001775788,0.000189938,0.006493796,0.000514433,0.0001475523,0.00008694513],"study_design_candidate":"observational","study_design_consensus":"observational","genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.99865,0.0004104825,3.344045e-7,0.0003989624,0.0001284514,0.00004422576,9.86409e-7,0.000002236249,0.0003642883],"genre_scores_gemma":[0.9997325,0.00008875701,0.00001216851,0.0001044891,0.00004139005,3.955135e-7,4.010689e-7,6.874387e-7,0.00001920972],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.2784654,"threshold_uncertainty_score":0.9323853,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.007065720047561815,"score_gpt":0.1912939327153582,"score_spread":0.1842282126677964,"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."}}