Get quick answers to your questions about the article from our AI researcher chatbot
{'id': 'https://openalex.org/W2004985164', 'doi': 'https://doi.org/10.1007/s11104-013-1678-0', 'title': 'Determination of the critical soil mineral nitrogen concentration for maximizing maize grain yield', 'display_name': 'Determination of the critical soil mineral nitrogen concentration for maximizing maize grain yield', 'publication_year': 2013, 'publication_date': '2013-03-18', 'ids': {'openalex': 'https://openalex.org/W2004985164', 'doi': 'https://doi.org/10.1007/s11104-013-1678-0', 'mag': '2004985164'}, 'language': 'en', 'primary_location': {'is_oa': False, 'landing_page_url': 'https://doi.org/10.1007/s11104-013-1678-0', 'pdf_url': None, 'source': {'id': 'https://openalex.org/S11781297', 'display_name': 'Plant and Soil', 'issn_l': '0032-079X', 'issn': ['0032-079X', '1573-5036'], 'is_oa': False, 'is_in_doaj': False, 'is_indexed_in_scopus': True, 'is_core': True, 'host_organization': 'https://openalex.org/P4310319900', 'host_organization_name': 'Springer Science+Business Media', 'host_organization_lineage': ['https://openalex.org/P4310319965', 'https://openalex.org/P4310319900'], 'host_organization_lineage_names': ['Springer Nature', 'Springer Science+Business Media'], '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/A5016709396', 'display_name': 'Yunfeng Peng', 'orcid': 'https://orcid.org/0000-0002-4151-4206'}, 'institutions': [{'id': 'https://openalex.org/I52158045', 'display_name': 'China Agricultural University', 'ror': 'https://ror.org/04v3ywz14', 'country_code': 'CN', 'type': 'education', 'lineage': ['https://openalex.org/I52158045']}], 'countries': ['CN'], 'is_corresponding': False, 'raw_author_name': 'Yunfeng Peng', 'raw_affiliation_strings': ['Key Laboratory of Plant-Soil Interactions, MOE, Center for Resources, Environment and Food Security, College of Resources and Environmental Science, China Agricultural University, Beijing, 100193, China'], 'affiliations': [{'raw_affiliation_string': 'Key Laboratory of Plant-Soil Interactions, MOE, Center for Resources, Environment and Food Security, College of Resources and Environmental Science, China Agricultural University, Beijing, 100193, China', 'institution_ids': ['https://openalex.org/I52158045']}]}, {'author_position': 'middle', 'author': {'id': 'https://openalex.org/A5061863211', 'display_name': 'Yu Peng', 'orcid': 'https://orcid.org/0000-0003-0043-9075'}, 'institutions': [{'id': 'https://openalex.org/I52158045', 'display_name': 'China Agricultural University', 'ror': 'https://ror.org/04v3ywz14', 'country_code': 'CN', 'type': 'education', 'lineage': ['https://openalex.org/I52158045']}], 'countries': ['CN'], 'is_corresponding': False, 'raw_author_name': 'Peng Yu', 'raw_affiliation_strings': ['Key Laboratory of Plant-Soil Interactions, MOE, Center for Resources, Environment and Food Security, College of Resources and Environmental Science, China Agricultural University, Beijing, 100193, China'], 'affiliations': [{'raw_affiliation_string': 'Key Laboratory of Plant-Soil Interactions, MOE, Center for Resources, Environment and Food Security, College of Resources and Environmental Science, China Agricultural University, Beijing, 100193, China', 'institution_ids': ['https://openalex.org/I52158045']}]}, {'author_position': 'middle', 'author': {'id': 'https://openalex.org/A5033814630', 'display_name': 'Xuexian Li', 'orcid': 'https://orcid.org/0000-0002-0863-9250'}, 'institutions': [{'id': 'https://openalex.org/I52158045', 'display_name': 'China Agricultural University', 'ror': 'https://ror.org/04v3ywz14', 'country_code': 'CN', 'type': 'education', 'lineage': ['https://openalex.org/I52158045']}], 'countries': ['CN'], 'is_corresponding': False, 'raw_author_name': 'Xuexian Li', 'raw_affiliation_strings': ['Key Laboratory of Plant-Soil Interactions, MOE, Center for Resources, Environment and Food Security, College of Resources and Environmental Science, China Agricultural University, Beijing, 100193, China'], 'affiliations': [{'raw_affiliation_string': 'Key Laboratory of Plant-Soil Interactions, MOE, Center for Resources, Environment and Food Security, College of Resources and Environmental Science, China Agricultural University, Beijing, 100193, China', 'institution_ids': ['https://openalex.org/I52158045']}]}, {'author_position': 'last', 'author': {'id': 'https://openalex.org/A5102773344', 'display_name': 'Chunjian Li', 'orcid': 'https://orcid.org/0000-0001-7492-3949'}, 'institutions': [{'id': 'https://openalex.org/I52158045', 'display_name': 'China Agricultural University', 'ror': 'https://ror.org/04v3ywz14', 'country_code': 'CN', 'type': 'education', 'lineage': ['https://openalex.org/I52158045']}], 'countries': ['CN'], 'is_corresponding': False, 'raw_author_name': 'Chunjian Li', 'raw_affiliation_strings': ['Key Laboratory of Plant-Soil Interactions, MOE, Center for Resources, Environment and Food Security, College of Resources and Environmental Science, China Agricultural University, Beijing, 100193, China'], 'affiliations': [{'raw_affiliation_string': 'Key Laboratory of Plant-Soil Interactions, MOE, Center for Resources, Environment and Food Security, College of Resources and Environmental Science, China Agricultural University, Beijing, 100193, China', 'institution_ids': ['https://openalex.org/I52158045']}]}], 'institution_assertions': [], 'countries_distinct_count': 1, 'institutions_distinct_count': 1, 'corresponding_author_ids': [], 'corresponding_institution_ids': [], 'apc_list': {'value': 3390, 'currency': 'EUR', 'value_usd': 4390, 'provenance': 'doaj'}, 'apc_paid': None, 'fwci': 4.011, 'has_fulltext': True, 'fulltext_origin': 'ngrams', 'cited_by_count': 34, 'citation_normalized_percentile': {'value': 0.934343, 'is_in_top_1_percent': False, 'is_in_top_10_percent': True}, 'cited_by_percentile_year': {'min': 93, 'max': 94}, 'biblio': {'volume': '372', 'issue': '1-2', 'first_page': '41', 'last_page': '51'}, 'is_retracted': False, 'is_paratext': False, 'primary_topic': {'id': 'https://openalex.org/T12310', 'display_name': 'Crop Yield and Soil Fertility', 'score': 0.9999, 'subfield': {'id': 'https://openalex.org/subfields/1102', 'display_name': 'Agronomy and Crop Science'}, 'field': {'id': 'https://openalex.org/fields/11', 'display_name': 'Agricultural and Biological Sciences'}, 'domain': {'id': 'https://openalex.org/domains/1', 'display_name': 'Life Sciences'}}, 'topics': [{'id': 'https://openalex.org/T12310', 'display_name': 'Crop Yield and Soil Fertility', 'score': 0.9999, 'subfield': {'id': 'https://openalex.org/subfields/1102', 'display_name': 'Agronomy and Crop Science'}, 'field': {'id': 'https://openalex.org/fields/11', 'display_name': 'Agricultural and Biological Sciences'}, 'domain': {'id': 'https://openalex.org/domains/1', 'display_name': 'Life Sciences'}}, {'id': 'https://openalex.org/T11247', 'display_name': 'Plant nutrient uptake and metabolism', 'score': 0.9983, 'subfield': {'id': 'https://openalex.org/subfields/1110', 'display_name': 'Plant Science'}, 'field': {'id': 'https://openalex.org/fields/11', 'display_name': 'Agricultural and Biological Sciences'}, 'domain': {'id': 'https://openalex.org/domains/1', 'display_name': 'Life Sciences'}}, {'id': 'https://openalex.org/T10004', 'display_name': 'Soil Carbon and Nitrogen Dynamics', 'score': 0.9965, 'subfield': {'id': 'https://openalex.org/subfields/1111', 'display_name': 'Soil Science'}, 'field': {'id': 'https://openalex.org/fields/11', 'display_name': 'Agricultural and Biological Sciences'}, 'domain': {'id': 'https://openalex.org/domains/1', 'display_name': 'Life Sciences'}}], 'keywords': [{'id': 'https://openalex.org/keywords/plant-physiology', 'display_name': 'Plant Physiology', 'score': 0.4359686}], 'concepts': [{'id': 'https://openalex.org/C168741863', 'wikidata': 'https://www.wikidata.org/wiki/Q777671', 'display_name': 'Sowing', 'level': 2, 'score': 0.63746727}, {'id': 'https://openalex.org/C2780560099', 'wikidata': 'https://www.wikidata.org/wiki/Q83323', 'display_name': 'Fertilizer', 'level': 2, 'score': 0.6212757}, {'id': 'https://openalex.org/C537208039', 'wikidata': 'https://www.wikidata.org/wiki/Q627', 'display_name': 'Nitrogen', 'level': 2, 'score': 0.5942572}, {'id': 'https://openalex.org/C6557445', 'wikidata': 'https://www.wikidata.org/wiki/Q173113', 'display_name': 'Agronomy', 'level': 1, 'score': 0.5752581}, {'id': 'https://openalex.org/C185592680', 'wikidata': 'https://www.wikidata.org/wiki/Q2329', 'display_name': 'Chemistry', 'level': 0, 'score': 0.55893904}, {'id': 'https://openalex.org/C140793950', 'wikidata': 'https://www.wikidata.org/wiki/Q168091', 'display_name': 'Animal science', 'level': 1, 'score': 0.5175195}, {'id': 'https://openalex.org/C134121241', 'wikidata': 'https://www.wikidata.org/wiki/Q899301', 'display_name': 'Yield (engineering)', 'level': 2, 'score': 0.4710847}, {'id': 'https://openalex.org/C2992211155', 'wikidata': 'https://www.wikidata.org/wiki/Q889514', 'display_name': 'Grain yield', 'level': 2, 'score': 0.4522255}, {'id': 'https://openalex.org/C161221295', 'wikidata': 'https://www.wikidata.org/wiki/Q185973', 'display_name': 'Plant physiology', 'level': 2, 'score': 0.4359686}, {'id': 'https://openalex.org/C2993531722', 'wikidata': 'https://www.wikidata.org/wiki/Q11575', 'display_name': 'Zea mays', 'level': 2, 'score': 0.43217057}, {'id': 'https://openalex.org/C46757340', 'wikidata': 'https://www.wikidata.org/wiki/Q43238', 'display_name': 'Poaceae', 'level': 2, 'score': 0.41557133}, {'id': 'https://openalex.org/C86803240', 'wikidata': 'https://www.wikidata.org/wiki/Q420', 'display_name': 'Biology', 'level': 0, 'score': 0.13875851}, {'id': 'https://openalex.org/C59822182', 'wikidata': 'https://www.wikidata.org/wiki/Q441', 'display_name': 'Botany', 'level': 1, 'score': 0.13217017}, {'id': 'https://openalex.org/C192562407', 'wikidata': 'https://www.wikidata.org/wiki/Q228736', 'display_name': 'Materials science', 'level': 0, 'score': 0.0}, {'id': 'https://openalex.org/C178790620', 'wikidata': 'https://www.wikidata.org/wiki/Q11351', 'display_name': 'Organic chemistry', 'level': 1, 'score': 0.0}, {'id': 'https://openalex.org/C191897082', 'wikidata': 'https://www.wikidata.org/wiki/Q11467', 'display_name': 'Metallurgy', 'level': 1, 'score': 0.0}], 'mesh': [], 'locations_count': 1, 'locations': [{'is_oa': False, 'landing_page_url': 'https://doi.org/10.1007/s11104-013-1678-0', 'pdf_url': None, 'source': {'id': 'https://openalex.org/S11781297', 'display_name': 'Plant and Soil', 'issn_l': '0032-079X', 'issn': ['0032-079X', '1573-5036'], 'is_oa': False, 'is_in_doaj': False, 'is_indexed_in_scopus': True, 'is_core': True, 'host_organization': 'https://openalex.org/P4310319900', 'host_organization_name': 'Springer Science+Business Media', 'host_organization_lineage': ['https://openalex.org/P4310319965', 'https://openalex.org/P4310319900'], 'host_organization_lineage_names': ['Springer Nature', 'Springer Science+Business Media'], 'type': 'journal'}, 'license': None, 'license_id': None, 'version': None, 'is_accepted': False, 'is_published': False}], 'best_oa_location': None, 'sustainable_development_goals': [], 'grants': [], 'datasets': [], 'versions': [], 'referenced_works_count': 36, 'referenced_works': ['https://openalex.org/W1481351420', 'https://openalex.org/W1574223936', 'https://openalex.org/W1774578998', 'https://openalex.org/W1876282212', 'https://openalex.org/W1973909875', 'https://openalex.org/W1977345749', 'https://openalex.org/W1978823681', 'https://openalex.org/W1981177774', 'https://openalex.org/W1984102380', 'https://openalex.org/W1984729182', 'https://openalex.org/W1985869197', 'https://openalex.org/W1985891224', 'https://openalex.org/W1992051154', 'https://openalex.org/W1993944448', 'https://openalex.org/W1998104182', 'https://openalex.org/W2003110898', 'https://openalex.org/W2005209335', 'https://openalex.org/W2015547004', 'https://openalex.org/W2016608406', 'https://openalex.org/W2019990444', 'https://openalex.org/W2024076245', 'https://openalex.org/W2024227157', 'https://openalex.org/W2036538049', 'https://openalex.org/W2036674500', 'https://openalex.org/W2037640654', 'https://openalex.org/W2038487861', 'https://openalex.org/W2062837840', 'https://openalex.org/W2088222303', 'https://openalex.org/W2088348792', 'https://openalex.org/W2095501940', 'https://openalex.org/W2161183663', 'https://openalex.org/W2162728241', 'https://openalex.org/W2187968459', 'https://openalex.org/W221019484', 'https://openalex.org/W2505361739', 'https://openalex.org/W579044481'], 'related_works': ['https://openalex.org/W4298857132', 'https://openalex.org/W4244135824', 'https://openalex.org/W4241014385', 'https://openalex.org/W4230934408', 'https://openalex.org/W4212863776', 'https://openalex.org/W2963331133', 'https://openalex.org/W2153505504', 'https://openalex.org/W2042646189', 'https://openalex.org/W2031233370', 'https://openalex.org/W2017489318'], 'abstract_inverted_index': None, 'cited_by_api_url': 'https://api.openalex.org/works?filter=cites:W2004985164', 'counts_by_year': [{'year': 2024, 'cited_by_count': 1}, {'year': 2023, 'cited_by_count': 6}, {'year': 2022, 'cited_by_count': 2}, {'year': 2021, 'cited_by_count': 3}, {'year': 2020, 'cited_by_count': 3}, {'year': 2019, 'cited_by_count': 2}, {'year': 2018, 'cited_by_count': 5}, {'year': 2017, 'cited_by_count': 4}, {'year': 2016, 'cited_by_count': 2}, {'year': 2015, 'cited_by_count': 5}, {'year': 2014, 'cited_by_count': 1}], 'updated_date': '2025-01-17T06:41:52.754632', 'created_date': '2016-06-24'}