{"id":"W2066416028","doi":"10.4141/s99-015","title":"Economics of N and P fertilization to restore wheat yields on three artificially eroded sites in southern Alberta","year":2000,"lang":"en","type":"article","venue":"Canadian Journal of Soil Science","topic":"Soil Carbon and Nitrogen Dynamics","field":"Agricultural and Biological Sciences","cited_by":8,"is_retracted":false,"has_abstract":true,"ca_institutions":"","funders":"","keywords":"Topsoil; Fertilizer; Soil water; Agronomy; Environmental science; Nutrient; Human fertilization; Soil science; Ecology; Biology","routes":{"ca_aff":false,"ca_fund":false,"ca_venue":true,"about_ca":true,"invisible_to_affiliation_only":true},"retraction":null,"screen":null,"direct_labels":[],"prediction":{"model_version":"metacan-v3-hybrid-931329e0061c","candidate_categories":[],"consensus_categories":[],"category_scores_codex":[0.0002887297,0.0002288665,0.0002082358,0.0002899913,0.0008217464,0.0004854933,0.0006757698,0.0002575105,0.0005917436],"category_scores_gemma":[0.0004411383,0.0001523707,0.0001908792,0.0005119818,0.0008656465,0.0001582695,0.0003534362,0.0002968523,0.00005371641],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.009509147,"about_ca_system_score_gemma":0.003328312,"about_ca_topic_candidate":true,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.4756932,"about_ca_topic_score_gemma":0.8288945,"domain_scores_codex":[0.9998178,0.00002902515,0.000007978986,0.00002531879,0.00006769041,0.00005215845],"domain_scores_gemma":[0.9997157,0.00006480344,0.00005753413,0.00001399149,0.0000657526,0.00008203868],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"bench_or_experimental","study_design_gemma":"observational","study_design_scores_codex":[0.01307138,0.002010386,0.3231879,0.0003660824,0.0002096209,0.006500965,0.002529648,0.07047617,0.5222657,0.00241679,0.0008534057,0.05611193],"study_design_scores_gemma":[0.0005464077,0.00557278,0.8840878,0.00002896461,0.0002131428,0.0004552697,0.00511103,0.02735539,0.06992899,0.000959955,0.005648171,0.00009208219],"study_design_candidate":"observational","study_design_consensus":null,"genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.9997154,0.00001107474,0.00005380678,0.000008314509,4.803373e-7,0.000004868634,0.00001808839,0.000002248323,0.00018579],"genre_scores_gemma":[0.9984995,0.00005723835,0.0004686638,0.00001134761,7.051511e-7,0.000006778143,0.00009502275,0.000003198817,0.0008574777],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.5243068,"threshold_uncertainty_score":0.9458487,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.02199217067184289,"score_gpt":0.2053109177140914,"score_spread":0.1833187470422485,"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."}}