{"id":"https://openalex.org/W2579654262","doi":null,"title":"Growth and yield of maize (Zea mays L.) as influenced by variable rates of nitrogen and phosphorus.","display_name":"Growth and yield of maize (Zea mays L.) as influenced by variable rates of nitrogen and phosphorus.","publication_year":2010,"publication_date":"2010-01-01","ids":{"openalex":"https://openalex.org/W2579654262","mag":"2579654262"},"language":"en","primary_location":{"id":"mag:2579654262","doi":null,"is_oa":false,"landing_page_url":"https://www.cabdirect.org/cabdirect/abstract/20103336247","pdf_url":null,"source":{"id":"https://openalex.org/S4306529256","display_name":"Science International (Lahore)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"journal"},"license":null,"license_id":null,"version":null,"is_accepted":false,"is_published":false,"raw_source_name":"Science International (Lahore)","raw_type":null},"volume":null,"type":"article","is_traditional":true,"indexed_in":[],"open_access":{"is_oa":false,"oa_status":"closed","oa_url":null,"any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5111971377","display_name":"A. A. Abid","orcid":null,"observed_orcids":[]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"A. A. Abid","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]},{"author_position":"middle","author":{"id":"https://openalex.org/A5104267698","display_name":"Amjed Ali","orcid":"https://orcid.org/0000-0002-0866-2346","observed_orcids":["https://orcid.org/0000-0002-0866-2346"]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Amjed Ali","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]},{"author_position":"middle","author":{"id":"https://openalex.org/A5089000110","display_name":"Syed Waseem Hassan","orcid":null,"observed_orcids":[]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Syed Waseem Hassan","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]},{"author_position":"last","author":{"id":"https://openalex.org/A5030620539","display_name":"Muhammad Ahsan Asif","orcid":"https://orcid.org/0000-0001-8394-9104","observed_orcids":["https://orcid.org/0000-0001-8394-9104"]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Muhammad Asif","raw_affiliation_strings":[],"raw_orcid":"https://orcid.org/0000-0001-8394-9104","affiliations":[]}],"institutions":[],"countries_distinct_count":0,"institutions_distinct_count":0,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":0.0,"has_fulltext":false,"cited_by_count":0,"citation_normalized_percentile":{"value":0.0,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":null,"biblio":{"volume":"22","issue":"3","first_page":"235","last_page":"237"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T12310","display_name":"Crop Yield and Soil Fertility","score":0.9628999829292297,"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":0.9628999829292297,"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/T12294","display_name":"Agricultural Science and Fertilization","score":0.0357000008225441,"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"}},{"id":"https://openalex.org/T12045","display_name":"Rice Cultivation and Yield Improvement","score":0.00019999999494757503,"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"}}],"keywords":[{"id":"https://openalex.org/keywords/maize","display_name":"maize","score":0.996999979019165},{"id":"https://openalex.org/keywords/nitrogen-fertilization","display_name":"nitrogen fertilization","score":0.8880000114440918},{"id":"https://openalex.org/keywords/phosphorus-fertilization","display_name":"phosphorus fertilization","score":0.9990000128746033},{"id":"https://openalex.org/keywords/crop-growth","display_name":"crop growth","score":0.8069999814033508},{"id":"https://openalex.org/keywords/crop-yield","display_name":"crop yield","score":0.8349999785423279}],"concepts":[{"id":"https://openalex.org/C2993531722","wikidata":"https://www.wikidata.org/wiki/Q11575","display_name":"Zea mays","level":2,"score":0.8686972856521606},{"id":"https://openalex.org/C6557445","wikidata":"https://www.wikidata.org/wiki/Q173113","display_name":"Agronomy","level":1,"score":0.7534315586090088},{"id":"https://openalex.org/C510538283","wikidata":"https://www.wikidata.org/wiki/Q674","display_name":"Phosphorus","level":2,"score":0.6949505805969238},{"id":"https://openalex.org/C134121241","wikidata":"https://www.wikidata.org/wiki/Q899301","display_name":"Yield (engineering)","level":2,"score":0.6769055128097534},{"id":"https://openalex.org/C537208039","wikidata":"https://www.wikidata.org/wiki/Q627","display_name":"Nitrogen","level":2,"score":0.6677392721176147},{"id":"https://openalex.org/C185592680","wikidata":"https://www.wikidata.org/wiki/Q2329","display_name":"Chemistry","level":0,"score":0.31192874908447266},{"id":"https://openalex.org/C86803240","wikidata":"https://www.wikidata.org/wiki/Q420","display_name":"Biology","level":0,"score":0.2448488473892212},{"id":"https://openalex.org/C192562407","wikidata":"https://www.wikidata.org/wiki/Q228736","display_name":"Materials science","level":0,"score":0.05843925476074219},{"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":[{"id":"mag:2579654262","doi":null,"is_oa":false,"landing_page_url":"https://www.cabdirect.org/cabdirect/abstract/20103336247","pdf_url":null,"source":{"id":"https://openalex.org/S4306529256","display_name":"Science International (Lahore)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"journal"},"license":null,"license_id":null,"version":null,"is_accepted":false,"is_published":false,"raw_source_name":"Science International (Lahore)","raw_type":null}],"best_oa_location":null,"sustainable_development_goals":[{"display_name":"Zero hunger","score":1.0,"id":"https://metadata.un.org/sdg/2"}],"study_designs":[],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":0,"referenced_works":[],"related_works":["https://openalex.org/W4379364895","https://openalex.org/W2035473965","https://openalex.org/W3116683833","https://openalex.org/W4404195583","https://openalex.org/W91192506","https://openalex.org/W2728003389","https://openalex.org/W205483083","https://openalex.org/W3162579075","https://openalex.org/W2155239009","https://openalex.org/W2421110388"],"abstract_inverted_index":null,"counts_by_year":[],"updated_date":"2026-09-22T06:50:58.402377","created_date":"2017-01-26T00:00:00"}
