{"id":"W2004670853","doi":"10.1007/s00374-005-0032-y","title":"Influence of tillage and rotation systems on distribution of organic carbon associated with particle-size fractions in Chernozemic soils of Saskatchewan, Canada","year":2005,"lang":"en","type":"article","venue":"Biology and Fertility of Soils","topic":"Soil Carbon and Nitrogen Dynamics","field":"Agricultural and Biological Sciences","cited_by":20,"is_retracted":false,"has_abstract":false,"ca_institutions":"Agriculture and Agri-Food Canada; University of Saskatchewan","funders":"Sylhet Agricultural University Research System; Ministry of Agriculture - Saskatchewan","keywords":"Chernozem; Tillage; Crop rotation; Silt; Agronomy; Soil water; Organic matter; Total organic carbon; Environmental science; Summer fallow; Soil organic matter; Conventional tillage; Cropping system; Soil science; Chemistry; Geology; Crop; Cropping; Biology; Environmental chemistry; Ecology; Agriculture","routes":{"ca_aff":true,"ca_fund":true,"ca_venue":false,"about_ca":true,"invisible_to_affiliation_only":false},"retraction":null,"screen":null,"direct_labels":[],"prediction":{"model_version":"codex-gemma-dda1882f352a","candidate_categories":[],"consensus_categories":[],"category_scores_codex":[0.0002176325,0.00007065418,0.0002320149,0.000006069743,0.0000212535,0.000001457016,0.00004473449,0.0001075349,0.000002374141],"category_scores_gemma":[0.0001739323,0.00003453871,0.00001531065,0.0001571102,0.0001645089,0.000027622,0.00001255986,0.00006147611,2.678924e-8],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.00004074259,"about_ca_system_score_gemma":0.00004587936,"about_ca_topic_candidate":true,"about_ca_topic_consensus":true,"about_ca_topic_score_codex":0.1639055,"about_ca_topic_score_gemma":0.682394,"domain_scores_codex":[0.9993139,0.00009354623,0.0002841363,0.0001250003,0.00007749799,0.000105917],"domain_scores_gemma":[0.9993043,0.0003064145,0.0002123969,0.00004059561,0.0001042475,0.0000320614],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"observational","study_design_gemma":"observational","study_design_scores_codex":[0.0001773568,0.00008043987,0.7347282,0.00001997563,0.0000174677,1.54621e-7,0.0001246252,0.0001463451,0.263936,0.00001691871,4.292363e-7,0.0007521067],"study_design_scores_gemma":[0.0002076664,0.00024601,0.9648254,0.00004931162,0.00001298311,5.831054e-7,0.0006235668,0.001500959,0.03243976,0.00004405877,9.048549e-7,0.00004881676],"study_design_candidate":"observational","study_design_consensus":"observational","genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.9995037,0.0001857707,3.580101e-7,0.00007728298,0.000009674314,0.0001122859,0.00009542424,0.000004447463,0.00001110445],"genre_scores_gemma":[0.9999261,0.00002057774,0.000001799805,0.0000107727,0.000004842686,0.000003530429,0.00002770034,4.807986e-7,0.000004179154],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.5184885,"threshold_uncertainty_score":0.8416621,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.00823594929962369,"score_gpt":0.2042004799083046,"score_spread":0.1959645306086809,"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."}}