{"id":"https://openalex.org/W20580476","doi":null,"title":"Optimal replacement of alfalfa stands","display_name":"Optimal replacement of alfalfa stands","publication_year":1982,"publication_date":"1982-01-01","ids":{"openalex":"https://openalex.org/W20580476","mag":"20580476"},"language":"en","primary_location":{"id":"pmh:oai:CiteSeerX.psu:10.1.1.949.3992","doi":null,"is_oa":false,"landing_page_url":"http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.949.3992","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"http://scholarworks.montana.edu/xmlui/bitstream/handle/1/3716/31762001163714.pdf%3Bjsessionid%3D62B43EAB6F02C1EB2322AFFF25294143?sequence%3D1","raw_type":"text"},"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/A5063820082","display_name":"Glen Irvin Goodman","orcid":null,"observed_orcids":[]},"institutions":[],"countries":[],"is_corresponding":true,"raw_author_name":"Glen Irvin Goodman","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]}],"institutions":[],"countries_distinct_count":0,"institutions_distinct_count":0,"corresponding_author_ids":["https://openalex.org/A5063820082"],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":0.0,"has_fulltext":false,"cited_by_count":0,"citation_normalized_percentile":{"value":0.00417907,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":null,"biblio":{"volume":null,"issue":null,"first_page":"1","last_page":"83"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11805","display_name":"Agricultural economics and policies","score":0.9146000146865845,"subfield":{"id":"https://openalex.org/subfields/2002","display_name":"Economics and Econometrics"},"field":{"id":"https://openalex.org/fields/20","display_name":"Economics, Econometrics and Finance"},"domain":{"id":"https://openalex.org/domains/2","display_name":"Social Sciences"}},"topics":[{"id":"https://openalex.org/T11805","display_name":"Agricultural economics and policies","score":0.9146000146865845,"subfield":{"id":"https://openalex.org/subfields/2002","display_name":"Economics and Econometrics"},"field":{"id":"https://openalex.org/fields/20","display_name":"Economics, Econometrics and Finance"},"domain":{"id":"https://openalex.org/domains/2","display_name":"Social Sciences"}},{"id":"https://openalex.org/T13591","display_name":"Pasture and Agricultural Systems","score":0.04019999876618385,"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/T13628","display_name":"Agricultural Productivity and Crop Improvement","score":0.009100000374019146,"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/alfalfa","display_name":"alfalfa","score":0.8289999961853027},{"id":"https://openalex.org/keywords/dynamic-decision-model","display_name":"dynamic decision model","score":0.7860000133514404},{"id":"https://openalex.org/keywords/net-present-value","display_name":"net present value","score":0.9160000085830688},{"id":"https://openalex.org/keywords/companion-plants","display_name":"companion plants","score":0.7620000243186951},{"id":"https://openalex.org/keywords/land-use","display_name":"land use","score":0.5080000162124634},{"id":"https://openalex.org/keywords/interest-rates","display_name":"interest rates","score":0.7419999837875366}],"concepts":[{"id":"https://openalex.org/C39432304","wikidata":"https://www.wikidata.org/wiki/Q188847","display_name":"Environmental science","level":0,"score":0.3365744352340698}],"mesh":[],"locations_count":3,"locations":[{"id":"pmh:oai:CiteSeerX.psu:10.1.1.949.3992","doi":null,"is_oa":false,"landing_page_url":"http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.949.3992","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"http://scholarworks.montana.edu/xmlui/bitstream/handle/1/3716/31762001163714.pdf%3Bjsessionid%3D62B43EAB6F02C1EB2322AFFF25294143?sequence%3D1","raw_type":"text"},{"id":"pmh:oai:scholarworks.montana.edu:1/3716","doi":null,"is_oa":false,"landing_page_url":"https://scholarworks.montana.edu/xmlui/handle/1/3716","pdf_url":null,"source":{"id":"https://openalex.org/S4306402563","display_name":"Montana State University ScholarWorks (Montana State University)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/I23732399","host_organization_name":"Montana State University","host_organization_lineage":["https://openalex.org/I23732399"],"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":"Thesis"},{"id":"mag:20580476","doi":null,"is_oa":false,"landing_page_url":"https://scholarworks.montana.edu/xmlui/handle/1/3716","pdf_url":null,"source":null,"license":null,"license_id":null,"version":null,"is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":null}],"best_oa_location":null,"sustainable_development_goals":[{"display_name":"Zero hunger","score":0.9208999872207642,"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/W2020919946","https://openalex.org/W2760296583","https://openalex.org/W2056239447","https://openalex.org/W2571607462","https://openalex.org/W2021923384","https://openalex.org/W7100187400","https://openalex.org/W1537641900","https://openalex.org/W3209166358","https://openalex.org/W2399514778","https://openalex.org/W4404208197"],"abstract_inverted_index":{"This":[0],"study":[1],"investigates":[2],"the":[3,19,35,64,118,158,171,207],"optimal":[4,20],"stand":[5,102,126,139],"length":[6],"of":[7,25,34,42,68,85,101,127,157,189,209,219],"irrigated":[8,72],"alfalfa":[9,28,86,128,138],"hay.":[10],"A":[11,124],"dynamic":[12],"decision":[13,21,59,105],"model":[14],"is":[15,49,61,91,107,129,212],"solved":[16,50],"which":[17],"determines":[18],"(grain":[22],"or":[23,217],"continuation":[24],"an":[26,137,162],"existing":[27],"stand)":[29],"for":[30,40,51,116,161,179,186,192,222],"275":[31],"possible":[32],"states":[33,39],"system":[36],"(25":[37],"price":[38],"each":[41],"11":[43],"land":[44],"use":[45],"states).":[46],"The":[47,58,104],"problem":[48],"specified":[52],"production":[53],"practices":[54],"and":[55,81,98,113,120],"interest":[56,111],"rates.":[57],"criterion":[60],"to":[62,93,110,131],"maximize":[63],"net":[65],"present":[66],"value":[67],"future":[69],"returns":[70],"from":[71],"crops":[73],"in":[74,154,203],"Montana":[75,165],"river":[76],"valleys.":[77],"Both":[78],"pure":[79,119,125],"stands":[80,84],"companion":[82,121,143],"crop":[83,122],"are":[87],"examined.":[88],"Alfalfa":[89],"replacement":[90],"found":[92,130],"take":[94],"place":[95],"between":[96],"seven":[97],"eight":[99],"years":[100],"life.":[103],"rule":[106],"relatively":[108],"insensitive":[109],"rates":[112],"nearly":[114],"identical":[115],"both":[117],"stands.":[123],"be":[132,196,227],"slightly":[133],"more":[134],"profitable":[135],"than":[136],"seeded":[140],"with":[141],"a":[142],"crop.":[144],"STATEMENT":[145],"OF":[146],"PERMISSION":[147],"TO":[148],"COPY":[149],"In":[150,234],"presenting":[151],"this":[152,190,220],"thesis":[153,191,221],"partial":[155],"fulfillment":[156],"require":[159],"ments":[160],"advanced":[163],"degree.at":[164],"State":[166],"University,":[167],"I":[168,181],"agree":[169,183],"that":[170,184,214],"Library":[172],"shall":[173,225],"make":[174],"'":[175],"it":[176],"freely":[177],"available":[178],"inspection.":[180],"further":[182],"permission":[185],"extensive":[187],"copying":[188,216],"scholarly":[193],"purposes":[194],"may":[195],"granted":[197],"by":[198,206],"my":[199,230],"major":[200],"professor,":[201],"or,":[202],"his":[204],"absence,":[205],"Director":[208],"Libraries.":[210],"It":[211],"understood":[213],"any":[215],"publication":[218],"financial":[223],"gain":[224],"not":[226],"allowed":[228],"without":[229],"written":[231],"permission.,a/n>":[232],"Date":[233],"j":[235],"iggz":[236]},"counts_by_year":[],"updated_date":"2026-09-09T07:26:56.047234","created_date":"2016-06-24T00:00:00"}
