Get quick answers to your questions about the article from our AI researcher chatbot
{'id': 'https://openalex.org/W2142487579', 'doi': 'https://doi.org/10.1111/j.1399-3054.1985.tb02368.x', 'title': 'Nutrition and growth of coniferous seedlings at varied relative nitrogen addition rate', 'display_name': 'Nutrition and growth of coniferous seedlings at varied relative nitrogen addition rate', 'publication_year': 1985, 'publication_date': '1985-10-01', 'ids': {'openalex': 'https://openalex.org/W2142487579', 'doi': 'https://doi.org/10.1111/j.1399-3054.1985.tb02368.x', 'mag': '2142487579'}, 'language': 'en', 'primary_location': {'is_oa': False, 'landing_page_url': 'https://doi.org/10.1111/j.1399-3054.1985.tb02368.x', 'pdf_url': None, 'source': {'id': 'https://openalex.org/S185046733', 'display_name': 'Physiologia Plantarum', 'issn_l': '0031-9317', 'issn': ['0031-9317', '1399-3054'], 'is_oa': False, 'is_in_doaj': False, 'is_core': True, 'host_organization': 'https://openalex.org/P4310320595', 'host_organization_name': 'Wiley', 'host_organization_lineage': ['https://openalex.org/P4310320595'], 'host_organization_lineage_names': ['Wiley'], 'type': 'journal'}, 'license': None, 'license_id': None, 'version': None, 'is_accepted': False, 'is_published': False}, 'type': 'article', 'type_crossref': 'journal-article', 'indexed_in': ['crossref'], 'open_access': {'is_oa': False, 'oa_status': 'closed', 'oa_url': None, 'any_repository_has_fulltext': False}, 'authorships': [{'author_position': 'first', 'author': {'id': 'https://openalex.org/A5078115179', 'display_name': 'Torsten Ingestad', 'orcid': None}, 'institutions': [{'id': 'https://openalex.org/I298625061', 'display_name': 'Swedish University of Agricultural Sciences', 'ror': 'https://ror.org/02yy8x990', 'country_code': 'SE', 'type': 'education', 'lineage': ['https://openalex.org/I298625061']}], 'countries': ['SE'], 'is_corresponding': False, 'raw_author_name': 'Torsten Ingestad', 'raw_affiliation_strings': ['Swedish University of Agricultural Sciences, Section of Forest Ecophysiology, S-750 07 Uppsala, Sweden'], 'affiliations': [{'raw_affiliation_string': 'Swedish University of Agricultural Sciences, Section of Forest Ecophysiology, S-750 07 Uppsala, Sweden', 'institution_ids': ['https://openalex.org/I298625061']}]}, {'author_position': 'last', 'author': {'id': 'https://openalex.org/A5054539387', 'display_name': 'Monika Kähr', 'orcid': None}, 'institutions': [{'id': 'https://openalex.org/I298625061', 'display_name': 'Swedish University of Agricultural Sciences', 'ror': 'https://ror.org/02yy8x990', 'country_code': 'SE', 'type': 'education', 'lineage': ['https://openalex.org/I298625061']}], 'countries': ['SE'], 'is_corresponding': False, 'raw_author_name': 'Monika Kähr', 'raw_affiliation_strings': ['M. Kähr, Swedish Univ. of Agricultural Sciences, The Phytotron, Frescati Hagväg 16B, S‐104 05 Stockholm, Sweden.'], 'affiliations': [{'raw_affiliation_string': 'M. Kähr, Swedish Univ. of Agricultural Sciences, The Phytotron, Frescati Hagväg 16B, S‐104 05 Stockholm, Sweden.', 'institution_ids': ['https://openalex.org/I298625061']}]}], 'institution_assertions': [], 'countries_distinct_count': 1, 'institutions_distinct_count': 1, 'corresponding_author_ids': [], 'corresponding_institution_ids': [], 'apc_list': {'value': 3760, 'currency': 'USD', 'value_usd': 3760, 'provenance': 'doaj'}, 'apc_paid': None, 'fwci': 15.802, 'has_fulltext': True, 'fulltext_origin': 'ngrams', 'cited_by_count': 209, 'citation_normalized_percentile': {'value': 0.972539, 'is_in_top_1_percent': False, 'is_in_top_10_percent': True}, 'cited_by_percentile_year': {'min': 98, 'max': 99}, 'biblio': {'volume': '65', 'issue': '2', 'first_page': '109', 'last_page': '116'}, 'is_retracted': False, 'is_paratext': False, 'primary_topic': {'id': 'https://openalex.org/T12870', 'display_name': 'Seedling growth and survival studies', 'score': 0.9997, 'subfield': {'id': 'https://openalex.org/subfields/2309', 'display_name': 'Nature and Landscape Conservation'}, 'field': {'id': 'https://openalex.org/fields/23', 'display_name': 'Environmental Science'}, 'domain': {'id': 'https://openalex.org/domains/3', 'display_name': 'Physical Sciences'}}, 'topics': [{'id': 'https://openalex.org/T12870', 'display_name': 'Seedling growth and survival studies', 'score': 0.9997, 'subfield': {'id': 'https://openalex.org/subfields/2309', 'display_name': 'Nature and Landscape Conservation'}, 'field': {'id': 'https://openalex.org/fields/23', 'display_name': 'Environmental Science'}, 'domain': {'id': 'https://openalex.org/domains/3', 'display_name': 'Physical Sciences'}}, {'id': 'https://openalex.org/T10266', 'display_name': 'Plant Water Relations and Carbon Dynamics', 'score': 0.9877, 'subfield': {'id': 'https://openalex.org/subfields/2306', 'display_name': 'Global and Planetary Change'}, 'field': {'id': 'https://openalex.org/fields/23', 'display_name': 'Environmental Science'}, 'domain': {'id': 'https://openalex.org/domains/3', 'display_name': 'Physical Sciences'}}, {'id': 'https://openalex.org/T11880', 'display_name': 'Forest ecology and management', 'score': 0.9814, 'subfield': {'id': 'https://openalex.org/subfields/2309', 'display_name': 'Nature and Landscape Conservation'}, 'field': {'id': 'https://openalex.org/fields/23', 'display_name': 'Environmental Science'}, 'domain': {'id': 'https://openalex.org/domains/3', 'display_name': 'Physical Sciences'}}], 'keywords': [{'id': 'https://openalex.org/keywords/relative-growth-rate', 'display_name': 'Relative growth rate', 'score': 0.88491297}, {'id': 'https://openalex.org/keywords/dry-weight', 'display_name': 'Dry weight', 'score': 0.48119932}], 'concepts': [{'id': 'https://openalex.org/C2777692458', 'wikidata': 'https://www.wikidata.org/wiki/Q7310793', 'display_name': 'Relative growth rate', 'level': 3, 'score': 0.88491297}, {'id': 'https://openalex.org/C21410773', 'wikidata': 'https://www.wikidata.org/wiki/Q220869', 'display_name': 'Shoot', 'level': 2, 'score': 0.72192776}, {'id': 'https://openalex.org/C2778312390', 'wikidata': 'https://www.wikidata.org/wiki/Q4139973', 'display_name': 'Growth rate', 'level': 2, 'score': 0.7036827}, {'id': 'https://openalex.org/C2778823381', 'wikidata': 'https://www.wikidata.org/wiki/Q165091', 'display_name': 'Pinus contorta', 'level': 2, 'score': 0.6928363}, {'id': 'https://openalex.org/C537208039', 'wikidata': 'https://www.wikidata.org/wiki/Q627', 'display_name': 'Nitrogen', 'level': 2, 'score': 0.66054773}, {'id': 'https://openalex.org/C142796444', 'wikidata': 'https://www.wikidata.org/wiki/Q181394', 'display_name': 'Nutrient', 'level': 2, 'score': 0.65357274}, {'id': 'https://openalex.org/C59822182', 'wikidata': 'https://www.wikidata.org/wiki/Q441', 'display_name': 'Botany', 'level': 1, 'score': 0.516242}, {'id': 'https://openalex.org/C140793950', 'wikidata': 'https://www.wikidata.org/wiki/Q168091', 'display_name': 'Animal science', 'level': 1, 'score': 0.50122046}, {'id': 'https://openalex.org/C144027150', 'wikidata': 'https://www.wikidata.org/wiki/Q48803', 'display_name': 'Horticulture', 'level': 1, 'score': 0.5001416}, {'id': 'https://openalex.org/C86803240', 'wikidata': 'https://www.wikidata.org/wiki/Q420', 'display_name': 'Biology', 'level': 0, 'score': 0.48851025}, {'id': 'https://openalex.org/C150668497', 'wikidata': 'https://www.wikidata.org/wiki/Q104870826', 'display_name': 'Dry weight', 'level': 2, 'score': 0.48119932}, {'id': 'https://openalex.org/C75235859', 'wikidata': 'https://www.wikidata.org/wiki/Q582659', 'display_name': 'Exponential growth', 'level': 2, 'score': 0.45937952}, {'id': 'https://openalex.org/C2777427081', 'wikidata': 'https://www.wikidata.org/wiki/Q145992', 'display_name': 'Picea abies', 'level': 2, 'score': 0.4450424}, {'id': 'https://openalex.org/C510538283', 'wikidata': 'https://www.wikidata.org/wiki/Q674', 'display_name': 'Phosphorus', 'level': 2, 'score': 0.41633517}, {'id': 'https://openalex.org/C185592680', 'wikidata': 'https://www.wikidata.org/wiki/Q2329', 'display_name': 'Chemistry', 'level': 0, 'score': 0.35794246}, {'id': 'https://openalex.org/C6557445', 'wikidata': 'https://www.wikidata.org/wiki/Q173113', 'display_name': 'Agronomy', 'level': 1, 'score': 0.33880568}, {'id': 'https://openalex.org/C33923547', 'wikidata': 'https://www.wikidata.org/wiki/Q395', 'display_name': 'Mathematics', 'level': 0, 'score': 0.13196415}, {'id': 'https://openalex.org/C18903297', 'wikidata': 'https://www.wikidata.org/wiki/Q7150', 'display_name': 'Ecology', 'level': 1, 'score': 0.11509693}, {'id': 'https://openalex.org/C134306372', 'wikidata': 'https://www.wikidata.org/wiki/Q7754', 'display_name': 'Mathematical analysis', 'level': 1, 'score': 0.0}, {'id': 'https://openalex.org/C2524010', 'wikidata': 'https://www.wikidata.org/wiki/Q8087', 'display_name': 'Geometry', 'level': 1, 'score': 0.0}, {'id': 'https://openalex.org/C178790620', 'wikidata': 'https://www.wikidata.org/wiki/Q11351', 'display_name': 'Organic chemistry', 'level': 1, 'score': 0.0}], 'mesh': [], 'locations_count': 1, 'locations': [{'is_oa': False, 'landing_page_url': 'https://doi.org/10.1111/j.1399-3054.1985.tb02368.x', 'pdf_url': None, 'source': {'id': 'https://openalex.org/S185046733', 'display_name': 'Physiologia Plantarum', 'issn_l': '0031-9317', 'issn': ['0031-9317', '1399-3054'], 'is_oa': False, 'is_in_doaj': False, 'is_core': True, 'host_organization': 'https://openalex.org/P4310320595', 'host_organization_name': 'Wiley', 'host_organization_lineage': ['https://openalex.org/P4310320595'], 'host_organization_lineage_names': ['Wiley'], 'type': 'journal'}, 'license': None, 'license_id': None, 'version': None, 'is_accepted': False, 'is_published': False}], 'best_oa_location': None, 'sustainable_development_goals': [{'score': 0.52, 'display_name': 'Zero hunger', 'id': 'https://metadata.un.org/sdg/2'}], 'grants': [], 'datasets': [], 'versions': [], 'referenced_works_count': 19, 'referenced_works': ['https://openalex.org/W1626539684', 'https://openalex.org/W171985881', 'https://openalex.org/W1979613356', 'https://openalex.org/W1987674435', 'https://openalex.org/W2017915655', 'https://openalex.org/W2038577594', 'https://openalex.org/W2038701650', 'https://openalex.org/W2058273327', 'https://openalex.org/W2094781229', 'https://openalex.org/W2101234640', 'https://openalex.org/W212729593', 'https://openalex.org/W2137142035', 'https://openalex.org/W2143915960', 'https://openalex.org/W2154236633', 'https://openalex.org/W2217757902', 'https://openalex.org/W2226648739', 'https://openalex.org/W240602957', 'https://openalex.org/W2908681473', 'https://openalex.org/W2964322862'], 'related_works': ['https://openalex.org/W4366999570', 'https://openalex.org/W4240380089', 'https://openalex.org/W2904967081', 'https://openalex.org/W2142487579', 'https://openalex.org/W2115033669', 'https://openalex.org/W2099029159', 'https://openalex.org/W2085742178', 'https://openalex.org/W2084925425', 'https://openalex.org/W2066951728', 'https://openalex.org/W1617962041'], 'abstract_inverted_index': {'The': [0, 89, 97, 111, 140, 157, 194, 346], 'growth': [1, 107, 142, 146, 160, 192, 204, 234, 253, 272, 303, 355, 362, 366], 'of': [2, 5, 14, 56, 65, 83, 105, 125, 198, 236, 261, 276, 325, 333, 348], 'two': [3, 12], 'provenances': [4, 13], 'Pinus': [6, 21], 'sylvestris': [7], 'L.': [8], 'were': [9, 45, 130, 162, 206, 215, 241, 245], 'compared': [10], 'with': [11, 20, 29, 299, 370], 'Picea': [15], 'abies': [16], '(L.)': [17], 'Karst.': [18], 'and': [19, 41, 92, 108, 116, 201, 220, 341, 364, 375], 'contorta': [22], 'Dougl.': [23], 'when': [24, 71], 'grown': [25], 'in': [26, 250, 263, 312, 338, 343], 'solution': [27], 'cultures': [28], 'low': [30], 'nutrient': [31, 74, 301, 357], 'concentrations.': [32], 'Nitrogen': [33, 327], 'was': [34, 76, 100, 147, 283, 317, 335], 'added': [35, 46], 'at': [36, 47, 121, 255], 'different': [37, 238], 'exponentially': [38], 'increasing': [39], 'rates,': [40], 'the': [42, 59, 66, 72, 81, 84, 93, 117, 126, 131, 152, 199, 202, 209, 221, 232, 237, 256, 269, 280, 306, 349], 'other': [43, 137], 'nutrients': [44], 'a': [48, 103, 122, 175, 290, 309, 319], 'rate': [49, 143, 224, 254, 330], 'high': [50, 291, 310], 'enough': [51], 'to': [52, 58, 80, 151, 165, 185, 226, 293, 305, 372], 'ensure': [53], 'free': [54, 300], 'access': [55], 'them': [57], 'seedlings.': [60], 'During': [61, 229], 'an': [62], 'initial': [63, 98], 'period': [64, 104], 'culture': [67], '(a': [68], 'lag': [69], 'phase),': [70], 'internal': [73, 195], 'status': [75], 'changing': [77], 'from': [78], 'optimum': [79], 'level': [82, 123], 'treatment,': [85], 'deficiency': [86], 'symptoms': [87], 'appeared.': [88], 'needles': [90, 112], 'yellowed': [91], 'root/shoot': [94, 118, 264], 'ratio': [95, 119], 'increased.': [96], 'phase': [99], 'followed': [101], 'by': [102], 'exponential': [106, 145, 210], 'steady‐state': [109], 'nutrition.': [110], 'turned': [113], 'green': [114], 'again,': [115], 'stabilized': [120], 'characteristic': [124], 'treatment.': [127], 'These': [128], 'patterns': [129], 'same': [132, 257], 'as': [133], 'previously': [134], 'reported': [135], 'for': [136, 180, 322], 'tree': [138], 'species.': [139], 'relative': [141, 153, 159, 203, 222, 233, 354], 'during': [144, 208], 'numerically': [148], 'closely': [149], 'equal': [150], 'nitrogen': [154, 196, 360], 'addition': [155, 223], 'rate.': [156], 'maximum': [158, 178, 227, 353], 'rates': [161, 205, 235], 'about': [163], '6': [164], '7.5%': [166], 'dry': [167], 'weight': [168], 'increase': [169], 'day': [170, 187], '‐1': [171, 188], '.': [172], 'This': [173], 'is': [174], 'much': [176], 'lower': [177, 336], 'than': [179, 337], 'broad‐leaved': [181], 'species': [182, 340], '(about': [183], '20': [184], '30%': [186], ')': [189], 'under': [190], 'similar': [191], 'conditions.': [193], 'concentrations': [197], 'seedlings': [200], 'stable': [207], 'period.': [211], 'Close': [212], 'linear': [213], 'relationships': [214], 'found': [216], 'between': [217, 248], 'these': [218], 'parameters': [219], 'up': [225], 'growth.': [228], 'steady': [230], 'state': [231], 'plant': [239], 'parts': [240], 'equal.': [242], 'However,': [243], 'there': [244, 316], 'large': [246], 'differences': [247, 262], 'genotypes': [249], 'absolute': [251], 'root': [252, 271, 365], 'seedling': [258], 'size': [259], 'because': [260], 'ratio.': [265], 'Lodgepole': [266], 'pine': [267], 'had': [268, 289, 308], 'highest': [270, 342], 'rate,': [273, 356, 359, 367], 'whereas': [274], 'that': [275], 'Norway': [277, 287], 'spruce,': [278], 'especially': [279], 'southern': [281], 'provenance,': [282], 'remarkably': [284], 'low.': [285], 'Yet,': [286], 'spruce': [288], 'ability': [292], 'utilize': [294], 'available': [295], 'nutrients.': [296, 326], 'In': [297], 'treatments': [298], 'access,': [302], 'allocation': [304, 363], 'shoot': [307], 'priority': [311], 'all': [313], 'genotypes,': [314], 'but': [315], 'still': [318], 'marked': [320], 'tendency': [321], 'luxury': [323], 'uptake': [324, 358], 'productivity': [328], '(growth': [329], 'per': [331], 'unit': [332], 'nitrogen)': [334], 'broadleaved': [339], 'lodgepole': [344], 'pine.': [345], 'relevance': [347], 'dynamic': [350], 'factors,': [351], 'i.e.': [352], 'productivity,': [361], 'are': [368], 'discussed': [369], 'regard': [371], 'conifer': [373], 'characteristics': [374], 'selection': [376], 'value.': [377]}, 'cited_by_api_url': 'https://api.openalex.org/works?filter=cites:W2142487579', 'counts_by_year': [{'year': 2024, 'cited_by_count': 2}, {'year': 2022, 'cited_by_count': 2}, {'year': 2021, 'cited_by_count': 3}, {'year': 2020, 'cited_by_count': 1}, {'year': 2019, 'cited_by_count': 1}, {'year': 2018, 'cited_by_count': 4}, {'year': 2017, 'cited_by_count': 2}, {'year': 2015, 'cited_by_count': 3}, {'year': 2014, 'cited_by_count': 1}, {'year': 2013, 'cited_by_count': 4}, {'year': 2012, 'cited_by_count': 2}], 'updated_date': '2024-12-17T06:26:33.719896', 'created_date': '2016-06-24'}