{"id":"W1981569759","doi":"10.1007/s11104-009-9919-y","title":"Determining critical values of soil Olsen-P for maize and winter wheat from long-term experiments in China","year":2009,"lang":"en","type":"article","venue":"Plant and Soil","topic":"Soil Carbon and Nitrogen Dynamics","field":"Agricultural and Biological Sciences","cited_by":130,"is_retracted":false,"has_abstract":false,"ca_institutions":"Agriculture and Agri-Food Canada","funders":"Key Technologies Research and Development Program; National Key Research and Development Program of China; China Scholarship Council","keywords":"Zea mays; Fertilizer; Agronomy; Mathematics; Winter wheat; Cropping system; Poaceae; Cropping; Crop; Crop yield; Yield (engineering); Agriculture; Biology; Ecology","routes":{"ca_aff":true,"ca_fund":false,"ca_venue":false,"about_ca":false,"invisible_to_affiliation_only":false},"retraction":null,"screen":null,"direct_labels":[],"prediction":{"model_version":"metacan-v3-hybrid-931329e0061c","candidate_categories":[],"consensus_categories":[],"category_scores_codex":[0.001230547,0.0004064034,0.000466677,0.0005976033,0.0005046264,0.0003517061,0.0005724592,0.0003520798,0.0002394123],"category_scores_gemma":[0.0009483077,0.0001753116,0.0004580015,0.0003544792,0.0006011482,0.0006883744,0.0003684744,0.0003374511,0.00004417668],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.002375504,"about_ca_system_score_gemma":0.001103344,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.02011156,"about_ca_topic_score_gemma":0.01730964,"domain_scores_codex":[0.999787,0.00003237016,0.00002522629,0.0000759433,0.00003893343,0.00004039219],"domain_scores_gemma":[0.9985898,0.0007113475,0.0002196521,0.00009347214,0.0002326942,0.0001529709],"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":[0.002562631,0.0002426581,0.1084829,0.0003332736,0.0002074245,0.0004080407,0.0004472765,0.01131968,0.8610074,0.000676692,0.00017064,0.01414137],"study_design_scores_gemma":[0.0001590336,0.001467397,0.6793546,0.00001733784,0.0003552847,0.0002363612,0.000580345,0.03058576,0.2852808,0.001229895,0.0006606894,0.00007257212],"study_design_candidate":"observational","study_design_consensus":null,"genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.9991816,0.0001635927,0.000462281,0.000008572389,0.000001257884,0.000005908912,0.00005261536,0.000004563959,0.0001195661],"genre_scores_gemma":[0.9994416,0.00006574404,0.0002841864,0.000006048951,7.87064e-7,0.0000122353,0.0001249725,0.000002644782,0.00006179317],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.02011156,"threshold_uncertainty_score":0.03998899,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.02223505743441682,"score_gpt":0.2591001160169868,"score_spread":0.23686505858257,"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."}}