{"id":"W2061342776","doi":"10.1139/b07-062","title":"The interaction between nitrogen source, soil pH, and drought in the growth and physiology of three poplar clonesThis article is one of a selection of papers published in the Special Issue on Poplar Research in Canada.","year":2007,"lang":"en","type":"article","venue":"Canadian Journal of Botany","topic":"Bioenergy crop production and management","field":"Agricultural and Biological Sciences","cited_by":42,"is_retracted":false,"has_abstract":true,"ca_institutions":"Alberta Pacific Forest Industries; University of Victoria; Université du Québec en Abitibi-Témiscamingue","funders":"Natural Resources Canada; Natural Sciences and Engineering Research Council of Canada; Forest Resource Improvement Association of Alberta; University of Alberta","keywords":"Cutting; Stomatal conductance; Ammonium; Photosynthesis; Nitrogen; Waterlogging (archaeology); Agronomy; Short rotation forestry; Greenhouse; Ammonium nitrate; Botany; Horticulture; Biology; Chemistry; Woody plant; Wetland; Ecology; Coppicing","routes":{"ca_aff":true,"ca_fund":true,"ca_venue":true,"about_ca":true,"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":[0.0003057072,0.0003192243,0.0003651785,0.0003805324,0.0003815162,0.0004384813,0.0003679,0.0003324125,0.0005924358],"category_scores_gemma":[0.0003845345,0.0002254034,0.0002770667,0.0002657013,0.0002334283,0.0002139712,0.0004820863,0.0005912568,0.0001339605],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.0007703882,"about_ca_system_score_gemma":0.000384575,"about_ca_topic_candidate":true,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.005908881,"about_ca_topic_score_gemma":0.00987481,"domain_scores_codex":[0.9997531,0.00003608568,0.00002514657,0.00007105351,0.00007405537,0.00004065546],"domain_scores_gemma":[0.999524,0.0001728363,0.00006287958,0.00002591236,0.00005952269,0.0001547408],"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":[0.0002305356,0.00007196775,0.007022778,0.00001588623,0.00001944272,0.0001051672,0.0001513988,0.00005555162,0.9909989,0.00003122702,0.00001290212,0.001284345],"study_design_scores_gemma":[0.00007560305,0.001170212,0.7007949,0.000008822314,0.0001657914,0.0006693359,0.0005070164,0.001832801,0.2929744,0.00006727456,0.001690761,0.00004296502],"study_design_candidate":"observational","study_design_consensus":null,"genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.9995795,0.00006563602,0.0001154305,0.000006418374,0.000001556975,0.000005600774,0.00007908484,0.000005955583,0.0001408618],"genre_scores_gemma":[0.9969563,0.0001397489,0.0007922836,0.00003660102,0.000003179604,0.0000399844,0.0007780925,0.00002466233,0.001229099],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.9940911,"threshold_uncertainty_score":0.01174897,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.0239527172351656,"score_gpt":0.2318637424898052,"score_spread":0.2079110252546396,"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."}}