{"doc_desc":{"title":"National Survey of Agricultural Export Commodities 2007","idno":"DDI-NGA-NBS-AGREXP-2007-v1.0","producers":[{"name":"National Bureau of Statistics","abbr":"NBS","affiliation":"Federal Government of Nigeria (FGN)","role":" Metadata Producer"}],"prod_date":"2009-03-04","version_statement":{"version":"Version 1.0(March 2009)"}},"study_desc":{"title_statement":{"idno":"NGA-NBS-AGREXP-2007-v1.0","title":"National Survey of Agricultural Export Commodities 2007","sub_title":"Fourth round","alternate_title":"AGREXP-2007","translated_title":"No translation"},"authoring_entity":[{"name":"National Bureau of Statistics  (NBS)","affiliation":"Federal Government of Nigeria (FGN)"}],"oth_id":[{"name":"Ministry Department and Agency","affiliation":"MDAs","email":"","role":"Technical Surport"}],"production_statement":{"producers":[{"name":"Central Bank of Nigeria","abbr":"CBN","affiliation":"Fedral Government of Nigeria (FGN)","role":"collaboration"},{"name":"Federal Ministry of Agriculture & Rural Development","abbr":"FMA&RD","affiliation":"Fedral Government of Nigeria (FGN)","role":"collaboration"},{"name":"Federal Ministry of Commerce","abbr":"FMC","affiliation":"Fedral Government of Nigeria (FGN)","role":"collaboration"}],"copyright":"\u00a9 NBS 2009","prod_date":"2007-09-26","funding_agencies":[{"name":"National Bureau of Statistics","abbr":"NBS","role":"Technical Surport"},{"name":"Central Bank of Nigeria","abbr":"CBN","role":"Funding"}]},"distribution_statement":{"distributors":[{"name":"Central Bank of Nigeria","abbr":"CBN","affiliation":"FEDRAL GOVERNMENT OF NIGERIA","uri":""},{"name":"Federal Ministry of Agriculture and Rural Development","abbr":"FMA&RD ","affiliation":"FEDRAL GOVERNMENT OF NIGERIA","uri":""},{"name":"Federal Ministry of Commerce","abbr":"FMC","affiliation":"FEDRAL GOVERNMENT OF NIGERIA","uri":""}],"contact":[{"name":"Dr V.O. Akinyosoye","affiliation":"Director General","email":"voakinyosoye@nigerianstat.gov.ng","uri":"http:\/\/www.nigerianstat.gov.ng"},{"name":"DR G.O. Adewoye","affiliation":"Director Census & Surveys","email":"georgeadewoye@yahoo.com","uri":"http:\/\/www.nigerianstat.gov.ng"},{"name":"Mrs A.N. Adewimbi","affiliation":"Head of  Information and Comnucation Technology Department","email":"anadewimbi@yahoo.com","uri":"http:\/\/www.nigerianstat.gov.ng"},{"name":"Biyi Fafunmi","affiliation":"Data Access","email":"biyifafunmi@nigerianstat.gov.ng","uri":"http:\/\/www.nigerianstat.gov.ng"},{"name":"Mrs A. A. Akinsanya","affiliation":"Data Archivist","email":"paakinsanya@nigerianstat.gov.ng","uri":"http:\/\/www.nigerianstat.gov.ng"},{"name":"Mr R.F. Busari","affiliation":"ICT","email":"rfbusari@nigerianstat.gov.ng","uri":"http:\/\/www.nigerianstat.gov.ng"},{"name":"National Bureau of Statistics (NBS)","affiliation":"Fedral Government of Nigeria (FGN)","email":"feedback@nigerianstat.gov.ng","uri":"http:\/\/www.nigerianstat.gov.ng"}]},"series_statement":{"series_name":"Agricultural Survey [ag\/oth]","series_info":"This edition is the fourth in the series of survey project conducted by the Technical Committee of the Consultative Committee on Agricultural Export Commodity Statistics (CCAECS). Fourteen crops were studied in the past three surveys; two crops (Cassava &\nKolanut) were however added during the 2006\/07 survey year.\n\nThe survey was jointly carried out by four federal agencies namely:  National Bureau ofStatistics (NBS), Central Bank of Nigeria (CBN), Federal Ministry of Agriculture & Water Resources (FMA&WR) and Federal Ministry of Commerce and Industry (FMC&I)."},"version_statement":{"version":"Version 1.0(March 2009)","version_date":"2009-03-04","version_notes":"The general review of the documentation"},"study_info":{"topics":[{"topic":"agricultural, forestry and rural industry [2.1]","vocab":"CESSDA","uri":"http:\/\/www.nesstar.org\/rdf\/common"},{"topic":"employment [3.1]","vocab":"CESSDA","uri":"http:\/\/www.nesstar.org\/rdf\/common"},{"topic":"working conditions [3.6]","vocab":"CESSDA","uri":"http:\/\/www.nesstar.org\/rdf\/common"},{"topic":"government, political systems and organisations [4.4]","vocab":"CESSDA","uri":"http:\/\/www.nesstar.org\/rdf\/common"},{"topic":"basic skills education [6.1]","vocab":"CESSDA","uri":"http:\/\/www.nesstar.org\/rdf\/common"},{"topic":"gender and gender roles [12.6]","vocab":"CESSDA","uri":"http:\/\/www.nesstar.org\/rdf\/common"},{"topic":"community, urban and rural life [13.1]","vocab":"CESSDA","uri":"http:\/\/www.nesstar.org\/rdf\/common"}],"abstract":"This edition is the fourth in the series of survey project conducted .\n\nThe survey covered the following sixteen crops: Cashew, Cassava, Cocoa, Coffee, Cotton, Garlic, Ginger, Groundnut, Gum Arabic, Kolanut, Oil Palm Rubber, Sesame seed, Sheanut, Sugar cane and Tea.\nA holder is the person who owns a holding, and is therefore entitled to the proceeds from the holding.\n\nThis means additional two crops were introduced to the survey\n\nThe major objectives of the survey include:\n\ni. To ascertain the spread of the cultivation of each of the sixteen export crops within Nigeria in terms of area cultivated by State.\nii. To provide a national basic data series on agricultural export commodities.\niii. To provide structural data on agricultural export commodities in Nigeria.\niv. To obtain socio-economic data and demographic characteristics of holders within households.\nv. To provide production estimates at national and State levels.","coll_dates":[{"start":"2007-09-01","end":"2007-09-21","cycle":"20 days"}],"nation":[{"name":"Nigeria","abbreviation":"NGA"}],"geog_coverage":"National State","analysis_unit":"Household  export crop production","universe":"Household export crop holder Modern Agricultural export crop Holders","data_kind":"Sample survey data [ssd]","notes":"The scope for data collected was as follows:\n\u2013 Access to land by type of tenure\n\u2013 Area cultivated under each crop\n\u2013 Production in terms of output of each crop\n\u2013 Use of farm inputs: fertilizer, pesticides and seedlings\n\u2013 Access to credit facilities\n\u2013 Employment\n\u2013 Market channels\n\u2013 Farmgate and open market prices\n\u2013 Consumption from own-production\n\u2013 Transportation and storage\n\u2013 Use and access to farm implements."},"method":{"data_collection":{"time_method":"2004\/2005","data_collectors":[{"name":"National Bureau of Statistics","abbr":"NBS","role":"","affiliation":"Fedral Government of Nigeria (FGN)"}],"sampling_procedure":"192 LGAs were selected nationwide.\n \nA 2-stage sample design was employed. In the first stage,I0 EAs were systematically selected from each sampled LGA. Of the expected 1,920 EAs, only 1,855 were found to have export crops and were eventually studied. \n\nIn the second stage, 10 export crop farming housing units were systematically selected from each sampled EA (provided there were more than 10 farming housing units in the EA). Where there were 10 or less farming housing units, no selection was required and all available housing units were\nstudied.\n\nOut of the 18,550 export crop farming housing units expected to be covered, 15,583 were canvassed.","sampling_deviation":"No deviations","coll_mode":["Face-to-face [f2f]"],"research_instrument":"Holding Questionnaire on Export crop\nThe questionnaire has a total of thirteen section, and each section contains different parts.\nHolding identification (front page)\nSection (i) Holding Characteristics (Qu. 1-3)\nSection (ii) Access to land (Qu.4-6)\nSection (iii) Sources of fund (Qu.7)\nSection (iv) Export-crop farming (Qu.8-10)\nSection (v) Farm implements (Qu.11-14)\nSection (vi) Storage\/Processing (Qu.15-18)\nSection (vii) Employment in export crop farms (Qu.19)\nSection (viii) Market channels (Qu.20)\nSection (ix) Farm gate sales (Qu.21)\nSection (x) Open market sales (Qu.22&23)\nSection (xi) Consumption from own production (Qu.24)\nSection (xii) Use of fertilizers (Qu.25-31)\nSection (xiii) Use of pesticides, insecticides\/herbicides(Qu.32-37)\nSection (xiv) Use of improved seedlings\/seeds (Qu.38-43)","sources":[{"name":"","origin":"","characteristics":""}],"coll_situation":"Three levels of training were conducted before the fieldwork. Training of the Trainers (TOT) was conducted for the members of the Technical Sub-committee at CBN Headquarters, Abuja for one day. Out of 24 officers trained at the first level training, 12\ntrainers were chosen to handle the second level training in the six geo-political zones of the Federation.\n\nDuring the second level training, 117 participants comprising Zonal Controllers, State Officers and Field Officers of the National Bureau of Statistics were trained for one day.\n\nThe third level training took place in each of the 36 State capitals and FCT where a total of five hundred and fifty five (555) enumerators and one hundred and eighty five (185) supervisors of the National Bureau of statistics were trained for one day.\n\nData Collection Strategy\nThe NBS permanent field staff carried out the data collection during the survey year. Each household head or a responsible adult in the household gave information about the household visited.\n\nThe field staff included enumerators and supervisors while the field coordinators comprised the State Officers and Zonal  ontrollers. Each State Officer coordinated all field operations, while the Zonal Controllers supervised the States in their respective zones.","act_min":"SUPERVISION\/QUALITY CHECK\n\nIn order to ensure a high quality data, two phased quality check exercises were put in place.  During the first exercise, the officers skim-checked and spot-checked the listing forms and ten selected questionnaires in the selected EAs in each State and FCT.  Farmers were randomly selected and visited on their farms to authenticate the data entries made by enumerators.\n\nIn the second exercise, the headquarters based quality check was carried out by the highly trained officers from Federal Ministry of Agriculture & Rural Development, Federal Ministry of Commerce, National Bureau of Statistics and the Central Bank of Nigeria. This exercise was carried out in eighteen weak states (i.e. three states per zone) which lasted for three days.","weight":"The variable (rf ) raising factor is computed and attached to the data file.\n\nThe formula adopted in calculating the design weights for the survey data (sample results) were as follows:\n(i)\tThe probability of selecting an EA within a state was obtained by dividing the total number of EAs sampled in a state by total number of EAs in that particular state. Let this be represented by fj. That is,\n fj      = \tTotal Number of EAs sampled in a state\n\t\tTotal Number of EAs in that particular State \n\n(ii)\tLikewise, the probability of selecting an housing unit (HU) within an EA was obtained by dividing the total number of housing units selected in an EA  by the total number of housing units (HUs) listed in that particular EA. Let this be represented by fk. That is,\nfk     = \t Total Number of HUs selected in an EA\n Total Number of HUs listed in that particular EA\nMathematically,\nDesign weight =     Total number of EAs in a state\n\t\t                    Total number of EAs sampled in that particular state\n\t\t\t\t\t\tX\n\t\t\t        Total Number of HUs listed in an EA \n\t\t\t        Total Number of HUs selected in that particular EA","cleaning_operations":"Data Retrieval\/Storage\nThe retrieved questionnaires were submitted at local government sub-offices. Subsequently, the questionnaires were batched according to EAs and taken to the NBS States\u2019 offices and finally to the zonal headquarters (Ibadan, Enugu, Calabar, Maiduguri,\nKaduna, and Jos).\n\nData Processing\/Analysis\nThe completed questionnaires were collated and edited manually before data entry operation was carried out by the NBS staff in the six designated NBS zonal headquarters. Machine data editing, table generation and analysis were carried out by NBS staff at NBS headquarters, Abuja, followed by report writing by the Consultative Committee on Agricultural Export Commodity Statistics (CCAECS).\n\n(a) The data entry was done manually\n(b) The data entry was done in lagos at (csd) cencus and surey division\n(c)  Six operator plus two suppervissor and two progammer were used\n(d) Six machines were used for data entry\n(e)  The data entry staff used 20 days to do the entries \n(f)   The supervisor use 5 days to checked the entries\n(g)   progarm was written to convert the data to spss also provided as external resource"},"method_notes":"During the listing exercise, ten (10) export farming housing units (EFHUs) were selected\nfor coverage. Thereafter, the Enumerators administered the holding questionnaire(s) to all\nqualified agricultural export commodity farmers in each of the selected EAs, which lasted\nfor two weeks. Through this exercise, relevant information on production, processing,\nmarket channels, credit facilities, farm inputs and other agronomic indicators were\nobtained from the farmers.\n\nSupervisor\/Quality Check\nIn order to ensure high quality data, two phase quality check exercises were put in place.\nDuring the first exercise, the officers skim-checked and spot-checked ten listing forms\nand ten selected holding questionnaires in the selected EAs in each State and FCT.\nFarmers were randomly selected and visited on their farms to authenticate the data entries\nmade by enumerators.","analysis_info":{"response_rate":"On National basis, 100 percent response rate was acheived at LGA level.\n\n 96.61 percent at EA level while\n \n 84.00 percent was acheived at export crop farming housing units level.\n \nReasons for non-response was not given.","sampling_error_estimates":"No sampling error estimate","data_appraisal":"Apparently, the results from these four surveys have added value to agricultural production in the country. This effort has also gone a long way to assist both government and non-government agencies in addressing the unfortunate situation of scarcity of\nreliable statistical data on export crops."}},"data_access":{"dataset_use":{"conf_dec":[{"txt":"The confidentiality of the individual respondent is protected by law (Statistical Act 2007)\nThis is published in the Official Gazette of the Federal republic of Nigeria No. 60 vol. 94 of 11th June 2007. See section 26 para.2. Punitive measures for breeches of confidentiality are outlined in section 28 of the same Act.","required":"yes","form_no":"","form_uri":""}],"contact":[{"name":"National Bureau of Statistics (NBS)","affiliation":"Federal Government of Nigeria (FGN)","email":"feedback@nigerianstat.gov.ng","uri":"http:\/\/www.nigerianstat.gov.ng"}],"cit_req":"National Bureau of Statistics, Nigeria, National Survey of Agricultural Export Commodities 2007-v1.0","conditions":"A comprehensive data access policy is been developed by NBS, however section 27 of the Statistical Act 2007outlines the data access obligation of data producers which includes the realease of properly anonymized micro data.","disclaimer":"The user of the data acknowledges that the original collector of the data, the authorized distributor of the data, and the relevant funding agency bear no responsibility for use of the data or for interpretations or inferences based upon such uses."}}},"schematype":"survey"}