Publication Information

{'id': 'https://openalex.org/W2194938742', 'doi': None, 'title': 'Effects of application of nitrogen and potassium at different leaf age periods on yield and population quality of one-season-medium rice.', 'display_name': 'Effects of application of nitrogen and potassium at different leaf age periods on yield and population quality of one-season-medium rice.', 'publication_year': 2009, 'publication_date': '2009-01-01', 'ids': {'openalex': 'https://openalex.org/W2194938742', 'mag': '2194938742'}, 'language': 'en', 'primary_location': {'is_oa': False, 'landing_page_url': 'https://en.cnki.com.cn/Article_en/CJFDTOTAL-ANHU200903030.htm', 'pdf_url': None, 'source': None, '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': 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