{"id":"https://openalex.org/W2133545884","doi":"https://doi.org/10.1016/s0308-521x(01)00020-8","title":"Assessing sustainability of low-external-input farm management systems with the nutrient monitoring approach: a case study in Kenya","display_name":"Assessing sustainability of low-external-input farm management systems with the nutrient monitoring approach: a case study in Kenya","publication_year":2001,"publication_date":"2001-07-01","ids":{"openalex":"https://openalex.org/W2133545884","doi":"https://doi.org/10.1016/s0308-521x(01)00020-8","mag":"2133545884"},"language":"en","primary_location":{"id":"doi:10.1016/s0308-521x(01)00020-8","doi":"https://doi.org/10.1016/s0308-521x(01)00020-8","is_oa":false,"landing_page_url":"https://doi.org/10.1016/s0308-521x(01)00020-8","pdf_url":null,"source":{"id":"https://openalex.org/S157560195","display_name":"Agricultural Systems","issn_l":"0308-521X","issn":["0308-521X","1873-2267"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["anvur-scientific","cwts-core","dongbi-b","jufo-2","ki-jl-2","norway-2","poland-140","russia-white-list-1","vabb-shw"],"host_organization":"https://openalex.org/P4310320990","host_organization_name":"Elsevier BV","host_organization_lineage":["https://openalex.org/P4310320990"],"host_organization_lineage_names":["Elsevier BV"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Agricultural Systems","raw_type":"journal-article"},"volume":null,"type":"article","is_traditional":true,"indexed_in":["crossref"],"open_access":{"is_oa":true,"oa_status":"green","oa_url":"https://research.wur.nl/en/publications/assessing-sustainability-of-low-external-input-farm-management-sy","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5108363104","display_name":"Andre de Jager","orcid":"https://orcid.org/0000-0002-4059-198X","observed_orcids":["https://orcid.org/0000-0002-4059-198X"]},"institutions":[],"countries":[],"is_corresponding":true,"raw_author_name":"A. De Jager","raw_affiliation_strings":["Agricultural Economics Research Institute (LEI-DLO), PO Box 29703, 2502 LS Den Haag, The Netherlands"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Agricultural Economics Research Institute (LEI-DLO), PO Box 29703, 2502 LS Den Haag, The Netherlands","institution_ids":[]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5061870380","display_name":"Davies D. Onduru","orcid":"https://orcid.org/0000-0002-1223-6147","observed_orcids":["https://orcid.org/0000-0002-1223-6147"]},"institutions":[{"id":"https://openalex.org/I4210101651","display_name":"Kenya Institute Of Organic Farming","ror":"https://ror.org/01a304769","country_code":"KE","type":"nonprofit","lineage":["https://openalex.org/I4210101651"]}],"countries":["KE"],"is_corresponding":false,"raw_author_name":"D. Onduru","raw_affiliation_strings":["Kenya Institute of Organic Farming (KIOF), PO Box 34972, Nairobi, Kenya"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Kenya Institute of Organic Farming (KIOF), PO Box 34972, Nairobi, Kenya","institution_ids":["https://openalex.org/I4210101651"]}]},{"author_position":"middle","author":{"id":null,"display_name":"M.S. van Wijk","orcid":null,"observed_orcids":[]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"M.S. van Wijk","raw_affiliation_strings":["Agricultural Economics Research Institute (LEI-DLO), PO Box 29703, 2502 LS Den Haag, The Netherlands"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Agricultural Economics Research Institute (LEI-DLO), PO Box 29703, 2502 LS Den Haag, The Netherlands","institution_ids":[]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5021235256","display_name":"J. Vlaming","orcid":null,"observed_orcids":[]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"J. Vlaming","raw_affiliation_strings":["Alterra \u2013 Research Institute for the Green World, PO Box 47, 6700 AA, Wageningen, The Netherlands"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Alterra \u2013 Research Institute for the Green World, PO Box 47, 6700 AA, Wageningen, The Netherlands","institution_ids":[]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5004310596","display_name":"G.N. Gachini","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I4210130129","display_name":"Kenya Agricultural Research Institute","ror":"https://ror.org/039922k61","country_code":"KE","type":"facility","lineage":["https://openalex.org/I4210130129"]}],"countries":["KE"],"is_corresponding":false,"raw_author_name":"G.N. Gachini","raw_affiliation_strings":["Kenya Agricultural Research Institute (KARI), PO Box 14733, Nairobi, Kenya"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Kenya Agricultural Research Institute (KARI), PO Box 14733, Nairobi, Kenya","institution_ids":["https://openalex.org/I4210130129"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":2,"corresponding_author_ids":["https://openalex.org/A5108363104"],"corresponding_institution_ids":[],"apc_list":{"value":4000,"currency":"USD","value_usd":4000},"apc_paid":null,"fwci":15.348,"has_fulltext":false,"cited_by_count":133,"citation_normalized_percentile":{"value":0.99162479,"is_in_top_1_percent":true,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":93,"max":99},"biblio":{"volume":"69","issue":"1-2","first_page":"99","last_page":"118"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T12896","display_name":"Sustainable Agricultural Systems Analysis","score":0.6190999746322632,"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/T12896","display_name":"Sustainable Agricultural Systems Analysis","score":0.6190999746322632,"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":0.35670000314712524,"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/T10367","display_name":"Agricultural Innovations and Practices","score":0.003700000001117587,"subfield":{"id":"https://openalex.org/subfields/1100","display_name":"General Agricultural and Biological Sciences"},"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/low-input-agriculture","display_name":"low-input agriculture","score":0.972000002861023},{"id":"https://openalex.org/keywords/organic-farming","display_name":"organic farming","score":0.8050000071525574},{"id":"https://openalex.org/keywords/nutrient-monitoring","display_name":"nutrient monitoring","score":0.6499999761581421},{"id":"https://openalex.org/keywords/nutrient-balance","display_name":"nutrient balance","score":0.7369999885559082},{"id":"https://openalex.org/keywords/nutrient-mining","display_name":"nutrient mining","score":0.621999979019165},{"id":"https://openalex.org/keywords/soil-fertility-decline","display_name":"soil fertility decline","score":0.8220000267028809},{"id":"https://openalex.org/keywords/nitrogen-starvation","display_name":"nitrogen starvation","score":0.722000002861023},{"id":"https://openalex.org/keywords/nutrient-leaching","display_name":"nutrient leaching","score":0.7990000247955322},{"id":"https://openalex.org/keywords/farm-household-income","display_name":"farm household income","score":0.8199999928474426},{"id":"https://openalex.org/keywords/off-farm-income","display_name":"off-farm income","score":0.9340000152587891},{"id":"https://openalex.org/keywords/compost-application","display_name":"compost application","score":0.9409999847412109},{"id":"https://openalex.org/keywords/maize","display_name":"maize","score":0.8949999809265137},{"id":"https://openalex.org/keywords/conventional-agriculture","display_name":"conventional farming","score":0.5529999732971191},{"id":"https://openalex.org/keywords/sustainability-assessment","display_name":"sustainability assessment","score":0.6179999709129333},{"id":"https://openalex.org/keywords/machakos-district","display_name":"Machakos District","score":0.746999979019165}],"concepts":[{"id":"https://openalex.org/C105462344","wikidata":"https://www.wikidata.org/wiki/Q17142554","display_name":"Nutrient management","level":3,"score":0.8510211706161499},{"id":"https://openalex.org/C118518473","wikidata":"https://www.wikidata.org/wiki/Q11451","display_name":"Agriculture","level":2,"score":0.700316309928894},{"id":"https://openalex.org/C142796444","wikidata":"https://www.wikidata.org/wiki/Q181394","display_name":"Nutrient","level":2,"score":0.6388636827468872},{"id":"https://openalex.org/C156005406","wikidata":"https://www.wikidata.org/wiki/Q2787508","display_name":"Subsistence agriculture","level":3,"score":0.6260402202606201},{"id":"https://openalex.org/C66204764","wikidata":"https://www.wikidata.org/wiki/Q219416","display_name":"Sustainability","level":2,"score":0.5867267847061157},{"id":"https://openalex.org/C144133560","wikidata":"https://www.wikidata.org/wiki/Q4830453","display_name":"Business","level":0,"score":0.4934364855289459},{"id":"https://openalex.org/C189326681","wikidata":"https://www.wikidata.org/wiki/Q10294","display_name":"Poverty","level":2,"score":0.46079307794570923},{"id":"https://openalex.org/C39432304","wikidata":"https://www.wikidata.org/wiki/Q188847","display_name":"Environmental science","level":0,"score":0.4048091173171997},{"id":"https://openalex.org/C48824518","wikidata":"https://www.wikidata.org/wiki/Q396340","display_name":"Agricultural economics","level":1,"score":0.39558786153793335},{"id":"https://openalex.org/C37621935","wikidata":"https://www.wikidata.org/wiki/Q3606845","display_name":"Agricultural science","level":1,"score":0.3713020086288452},{"id":"https://openalex.org/C54286561","wikidata":"https://www.wikidata.org/wiki/Q397350","display_name":"Agroforestry","level":1,"score":0.3546871244907379},{"id":"https://openalex.org/C162324750","wikidata":"https://www.wikidata.org/wiki/Q8134","display_name":"Economics","level":0,"score":0.2937777042388916},{"id":"https://openalex.org/C205649164","wikidata":"https://www.wikidata.org/wiki/Q1071","display_name":"Geography","level":0,"score":0.21130222082138062},{"id":"https://openalex.org/C18903297","wikidata":"https://www.wikidata.org/wiki/Q7150","display_name":"Ecology","level":1,"score":0.10522258281707764},{"id":"https://openalex.org/C86803240","wikidata":"https://www.wikidata.org/wiki/Q420","display_name":"Biology","level":0,"score":0.09316951036453247},{"id":"https://openalex.org/C50522688","wikidata":"https://www.wikidata.org/wiki/Q189833","display_name":"Economic growth","level":1,"score":0.08751904964447021},{"id":"https://openalex.org/C166957645","wikidata":"https://www.wikidata.org/wiki/Q23498","display_name":"Archaeology","level":1,"score":0.0}],"mesh":[],"locations_count":4,"locations":[{"id":"doi:10.1016/s0308-521x(01)00020-8","doi":"https://doi.org/10.1016/s0308-521x(01)00020-8","is_oa":false,"landing_page_url":"https://doi.org/10.1016/s0308-521x(01)00020-8","pdf_url":null,"source":{"id":"https://openalex.org/S157560195","display_name":"Agricultural Systems","issn_l":"0308-521X","issn":["0308-521X","1873-2267"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["anvur-scientific","cwts-core","dongbi-b","jufo-2","ki-jl-2","norway-2","poland-140","russia-white-list-1","vabb-shw"],"host_organization":"https://openalex.org/P4310320990","host_organization_name":"Elsevier BV","host_organization_lineage":["https://openalex.org/P4310320990"],"host_organization_lineage_names":["Elsevier BV"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Agricultural Systems","raw_type":"journal-article"},{"id":"pmh:oai:library.wur.nl:wurpubs/316446","doi":null,"is_oa":true,"landing_page_url":"https://research.wur.nl/en/publications/assessing-sustainability-of-low-external-input-farm-management-sy","pdf_url":null,"source":{"id":"https://openalex.org/S4210201231","display_name":"Socio-Environmental Systems Modeling","issn_l":"2663-3027","issn":["2663-3027"],"is_oa":true,"is_in_doaj":false,"is_core":true,"listed_in":["cwts-core"],"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"journal"},"license":null,"license_id":null,"version":"acceptedVersion","is_accepted":true,"is_published":false,"raw_source_name":"ISSN: 0308-521X","raw_type":"Article/Letter to editor"},{"id":"pmh:oai:RePEc:eee:agisys:v:69:y:2001:i:1-2:p:99-118","doi":null,"is_oa":false,"landing_page_url":"http://www.sciencedirect.com/science/article/pii/S0308-521X(01)00020-8","pdf_url":null,"source":{"id":"https://openalex.org/S4306401271","display_name":"RePEc: Research Papers in Economics","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/I77793887","host_organization_name":"Federal Reserve Bank of St. Louis","host_organization_lineage":["https://openalex.org/I77793887"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":"article"},{"id":"pmh:wur:oai:library.wur.nl:wurpubs/316446","doi":null,"is_oa":false,"landing_page_url":"https://research.wur.nl/en/publications/assessing-sustainability-of-low-external-input-farm-management-sy","pdf_url":null,"source":{"id":"https://openalex.org/S4306401843","display_name":"Data Archiving and Networked Services (DANS)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/I1322597698","host_organization_name":"Royal Netherlands Academy of Arts and Sciences","host_organization_lineage":["https://openalex.org/I1322597698"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"Agricultural Systems, 69(1/2), 99 - 118","raw_type":"info:eu-repo/semantics/article"}],"best_oa_location":{"id":"pmh:oai:library.wur.nl:wurpubs/316446","doi":null,"is_oa":true,"landing_page_url":"https://research.wur.nl/en/publications/assessing-sustainability-of-low-external-input-farm-management-sy","pdf_url":null,"source":{"id":"https://openalex.org/S4210201231","display_name":"Socio-Environmental Systems Modeling","issn_l":"2663-3027","issn":["2663-3027"],"is_oa":true,"is_in_doaj":false,"is_core":true,"listed_in":["cwts-core"],"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"journal"},"license":null,"license_id":null,"version":"acceptedVersion","is_accepted":true,"is_published":false,"raw_source_name":"ISSN: 0308-521X","raw_type":"Article/Letter to editor"},"sustainable_development_goals":[{"display_name":"Zero hunger","score":1.0,"id":"https://metadata.un.org/sdg/2"},{"display_name":"Responsible consumption and production","score":0.7811999917030334,"id":"https://metadata.un.org/sdg/12"},{"display_name":"No poverty","score":0.666700005531311,"id":"https://metadata.un.org/sdg/1"},{"display_name":"Climate action","score":0.4399999976158142,"id":"https://metadata.un.org/sdg/13"}],"study_designs":[],"awards":[],"funders":[{"id":"https://openalex.org/F4320320300","display_name":"European Commission","ror":"https://ror.org/00k4n6c32"}],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":24,"referenced_works":["https://openalex.org/W623221690","https://openalex.org/W1488162564","https://openalex.org/W1519408284","https://openalex.org/W1529045415","https://openalex.org/W1531650518","https://openalex.org/W1543128758","https://openalex.org/W1547071036","https://openalex.org/W1577254556","https://openalex.org/W1981542448","https://openalex.org/W1997645402","https://openalex.org/W2032233367","https://openalex.org/W2036523495","https://openalex.org/W2060368252","https://openalex.org/W2072012412","https://openalex.org/W2079094436","https://openalex.org/W2088296429","https://openalex.org/W2094572921","https://openalex.org/W2100063715","https://openalex.org/W2101201092","https://openalex.org/W2108593493","https://openalex.org/W2140176643","https://openalex.org/W2171847841","https://openalex.org/W2564505508","https://openalex.org/W4239322835"],"related_works":["https://openalex.org/W2076157646","https://openalex.org/W2108593493","https://openalex.org/W2085464505","https://openalex.org/W2090225165","https://openalex.org/W4365515592","https://openalex.org/W7098667490","https://openalex.org/W1799599457","https://openalex.org/W4396773224","https://openalex.org/W2783599411","https://openalex.org/W2788777293"],"abstract_inverted_index":null,"counts_by_year":[{"year":2025,"cited_by_count":3},{"year":2024,"cited_by_count":2},{"year":2023,"cited_by_count":2},{"year":2022,"cited_by_count":3},{"year":2021,"cited_by_count":5},{"year":2020,"cited_by_count":5},{"year":2019,"cited_by_count":4},{"year":2018,"cited_by_count":6},{"year":2017,"cited_by_count":2},{"year":2016,"cited_by_count":6},{"year":2015,"cited_by_count":3},{"year":2014,"cited_by_count":5},{"year":2013,"cited_by_count":10},{"year":2012,"cited_by_count":12}],"updated_date":"2026-11-07T11:25:07.637180","created_date":"2016-06-24T00:00:00"}
