Get quick answers to your questions about the article from our AI researcher chatbot
{'id': 'https://openalex.org/W1567753723', 'doi': None, 'title': 'Extent and causes of low yield in maize planted late by smallholder farmers in sub-humid areas of Zimbabwe', 'display_name': 'Extent and causes of low yield in maize planted late by smallholder farmers in sub-humid areas of Zimbabwe', 'publication_year': 1991, 'publication_date': '1991-01-01', 'ids': {'openalex': 'https://openalex.org/W1567753723', 'mag': '1567753723'}, 'language': 'en', 'primary_location': {'is_oa': False, 'landing_page_url': 'https://repository.cimmyt.org/xmlui/handle/10883/1386', 'pdf_url': None, 'source': {'id': 'https://openalex.org/S4363604954', 'display_name': '9', 'issn_l': None, 'issn': None, 'is_oa': False, 'is_in_doaj': False, 'is_core': False, 'host_organization': None, 'host_organization_name': None, 'host_organization_lineage': [], 'host_organization_lineage_names': [], 'type': 'journal'}, 'license': None, 'license_id': None, 'version': None, 'is_accepted': False, 'is_published': False}, 'type': 'article', 'type_crossref': 'journal-article', 'indexed_in': [], '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/A5037998543', 'display_name': 'S.R. Waddington', 'orcid': 'https://orcid.org/0000-0002-4533-9206'}, 'institutions': [], 'countries': [], 'is_corresponding': False, 'raw_author_name': 'S.R. Waddington', 'raw_affiliation_strings': [], 'affiliations': []}, {'author_position': 'middle', 'author': {'id': 'https://openalex.org/A5064286230', 'display_name': 'Maxwell Mudhara', 'orcid': 'https://orcid.org/0000-0001-8739-0811'}, 'institutions': [], 'countries': [], 'is_corresponding': False, 'raw_author_name': 'M. Mudhara', 'raw_affiliation_strings': [], 'affiliations': []}, {'author_position': 'middle', 'author': {'id': 'https://openalex.org/A5018719150', 'display_name': 'Hlatshwayo', 'orcid': None}, 'institutions': [], 'countries': [], 'is_corresponding': False, 'raw_author_name': 'Hlatshwayo', 'raw_affiliation_strings': [], 'affiliations': []}, {'author_position': 'last', 'author': {'id': 'https://openalex.org/A5071708152', 'display_name': 'P. Kunjeku', 'orcid': None}, 'institutions': [], 'countries': [], 'is_corresponding': False, 'raw_author_name': 'P. Kunjeku', 'raw_affiliation_strings': [], 'affiliations': []}], 'institution_assertions': [], 'countries_distinct_count': 0, 'institutions_distinct_count': 0, 'corresponding_author_ids': [], 'corresponding_institution_ids': [], 'apc_list': None, 'apc_paid': None, 'fwci': 0.57, 'has_fulltext': False, 'cited_by_count': 11, 'citation_normalized_percentile': {'value': 0.559233, 'is_in_top_1_percent': False, 'is_in_top_10_percent': False}, 'cited_by_percentile_year': {'min': 79, 'max': 80}, 'biblio': {'volume': None, 'issue': None, 'first_page': None, 'last_page': None}, 'is_retracted': False, 'is_paratext': False, 'primary_topic': {'id': 'https://openalex.org/T12310', 'display_name': 'Factors Affecting Maize Yield and Lodging Resistance', 'score': 0.664, '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': 'Factors Affecting Maize Yield and Lodging Resistance', 'score': 0.664, '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/T12003', 'display_name': 'Development and Impacts of Bioenergy Crops', 'score': 0.6152, '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'}}], 'keywords': [{'id': 'https://openalex.org/keywords/maize-yield', 'display_name': 'Maize Yield', 'score': 0.633125}], 'concepts': [{'id': 'https://openalex.org/C134121241', 'wikidata': 'https://www.wikidata.org/wiki/Q899301', 'display_name': 'Yield (engineering)', 'level': 2, 'score': 0.6982798}, {'id': 'https://openalex.org/C6557445', 'wikidata': 'https://www.wikidata.org/wiki/Q173113', 'display_name': 'Agronomy', 'level': 1, 'score': 0.5458035}, {'id': 'https://openalex.org/C54286561', 'wikidata': 'https://www.wikidata.org/wiki/Q397350', 'display_name': 'Agroforestry', 'level': 1, 'score': 0.4307251}, {'id': 'https://openalex.org/C39432304', 'wikidata': 'https://www.wikidata.org/wiki/Q188847', 'display_name': 'Environmental science', 'level': 0, 'score': 0.42072186}, {'id': 'https://openalex.org/C205649164', 'wikidata': 'https://www.wikidata.org/wiki/Q1071', 'display_name': 'Geography', 'level': 0, 'score': 0.36558762}, {'id': 'https://openalex.org/C86803240', 'wikidata': 'https://www.wikidata.org/wiki/Q420', 'display_name': 'Biology', 'level': 0, 'score': 0.1976313}, {'id': 'https://openalex.org/C191897082', 'wikidata': 'https://www.wikidata.org/wiki/Q11467', 'display_name': 'Metallurgy', 'level': 1, 'score': 0.0}, {'id': 'https://openalex.org/C192562407', 'wikidata': 'https://www.wikidata.org/wiki/Q228736', 'display_name': 'Materials science', 'level': 0, 'score': 0.0}], 'mesh': [], 'locations_count': 1, 'locations': [{'is_oa': False, 'landing_page_url': 'https://repository.cimmyt.org/xmlui/handle/10883/1386', 'pdf_url': None, 'source': {'id': 'https://openalex.org/S4363604954', 'display_name': '9', 'issn_l': None, 'issn': None, 'is_oa': False, 'is_in_doaj': False, 'is_core': False, 'host_organization': None, 'host_organization_name': None, 'host_organization_lineage': [], 'host_organization_lineage_names': [], 'type': 'journal'}, 'license': None, 'license_id': None, 'version': None, 'is_accepted': False, 'is_published': False}], 'best_oa_location': None, 'sustainable_development_goals': [{'score': 0.8, 'id': 'https://metadata.un.org/sdg/2', 'display_name': 'Zero hunger'}], 'grants': [], 'datasets': [], 'versions': [], 'referenced_works_count': 0, 'referenced_works': [], 'related_works': ['https://openalex.org/W3099028637', 'https://openalex.org/W3088584228', 'https://openalex.org/W2950577898', 'https://openalex.org/W2924464651', 'https://openalex.org/W2910372524', 'https://openalex.org/W2899562979', 'https://openalex.org/W2801861099', 'https://openalex.org/W2789156421', 'https://openalex.org/W2787747599', 'https://openalex.org/W2612718618', 'https://openalex.org/W2603612221', 'https://openalex.org/W2525968140', 'https://openalex.org/W2346394426', 'https://openalex.org/W2278253026', 'https://openalex.org/W2252601590', 'https://openalex.org/W2188061803', 'https://openalex.org/W2119290696', 'https://openalex.org/W2094239137', 'https://openalex.org/W1664347978', 'https://openalex.org/W153411039'], 'abstract_inverted_index': None, 'cited_by_api_url': 'https://api.openalex.org/works?filter=cites:W1567753723', 'counts_by_year': [{'year': 2022, 'cited_by_count': 1}, {'year': 2020, 'cited_by_count': 1}, {'year': 2018, 'cited_by_count': 1}, {'year': 2012, 'cited_by_count': 1}], 'updated_date': '2024-09-18T15:04:43.479760', 'created_date': '2016-06-24'}