NAM-NSA-NCA-CN-2013-2014-v02
Namibia Census of Agriculture 2013/2014 - Communal Sector
Third round
NCA- CN 2013-2014 for "Namibia Census of Agriculture - Communal Sector 2013-2014"
Name | Country code |
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Namibia | NAM |
Agricultural Census [ag/census]
The censuses are conducted every ten years in accordance with the international standards and best practices .The Namibia Census of Agriculture (NCA 2013/14), is the third Agricultural Census to be conducted . The 1994/95 Census was the first Agricultural Census taken after independence. The 2004/2005 Agricultural Census was planned and carried out but could not be published due to technical issues. The Census collects indicaters that help monitors national and international development agenders such as National Development Plans (NDPs), Harabee Propsperity Plan (HPP), Sustainable Development Goals (SDGs), Agenda 2063 etc.
The Namibia Census of Agriculture (NCA) 2013/14 covered the communal and commercial farming sectors throughout the country. The objective of the NCA 2013/14 is to obtain baseline agricultural production and structural variables for the communal and commercial farming sectors at the national and regional levels. The census will provide statistics to improve planning and decision-making in the agricultural sector and satisfy the information needs of the socio-economic database being set up by the Namibia Statistics Agency (NSA).
Sample survey data [ssd]
The study was done on the population for the communal sector and a significant number of agricultural households in the rural communal areas of Namibia including the semi-urban areas around the urban centers. The census collected detailed data on crop production, crop storage, livestock production and fish farming. The unit of analysis is individuals, agricultural household, agricultural holdings, parcels and plots.
v2.1 Edited, cleaned, revised anonymised, datasets for public users.
2015-11-23
Not Applicable
THEMES
CHAPTER 1: INTRODUCTION
This study presents information on the background, objectives, methodology, response rate, liability of estimate, finatial and technical suport of the Census.
CHAPTER 2: AGRICULTURAL HOUSEHOLDS DEMOGRAPHIC CHARACTERISTICS
This study deals with the demographic characteristics and economic Status of the agricultural household members. Provide information for each individual person in the household. From section 2 onwards information will be collected from only the ten (10) sampled agricultural holdings
CHAPTER 3: LAND USE
This study collected information on land under different land uses. The type of holding, means of acquisition of pacels and plots, ownership of pacels and plots, holding characteristics, production and area of major crops such as sorghum , maize and millet/mahangu.
CHAPTER 4: ACCESS TO EXTENSION SERVICES AND FACILITIES
This study presents information on agricultural extention services received by the holdings.
CHAPTER 5: EQUIPMENT AND INFRASTRUCTURE
The information required is on type(s) of means of transportation the agricultural holding owns, can borrow or can hire. Futhermore, information on whether the holding has any storage facilities and the storing capacity was captured.
CHAPTER 6: ACCESS TO CREDIT FACILITIES
This chapter presents information on households who received loans for agricultural purposes, as well as purpose, source and period of loan received and type of collateral,etc.
CHAPTER 7: FARM MANAGEMENT
This study presents information on the use of fetilizes, types of seed used, the use of pesticides, use of irrigation and the types of inputs used.
CHAPTER 8: AQUACULTURE/FISH FARMING
This gives information on the fish farming carried out by the holding. The fish farming system used, source and number of fingerlings stocked by type, quantity of fish harvested, period aquaculture has been practised and the number of workers in aquaculture.
CHAPTER 9: FORESTRY
This study covers one of the important resources the country is endowed with, namely forestry. This chapter collect information on the use of forest land, and the purpose of agro-forestly
CHAPTER 10: FOOD SECURITY
This study provide information on the agricultural households who experience food shortage, presence of food shortage,number of meals taken per day, months in which food shortage occured, reason for food shortage and immediate response to alleviate food shortage.
CHAPTER 11: OTHER ECONOMIC ACTIVITY
This study collected information on the type of economic activities, as well as other income sources other then agriculture, the agricultural household population is engaged in.
CHAPTER 12: LABOUR INPUTS
This study covers information on agricultural households members by status of employment, paid employees.
CHAPTER 13: USAGE AND DISPOSITION OF CROPS
This study aims to present a broad indicator of the extent to which agricultural holdings are participating in the market economy. The quantity of crop production sold, and the Post Harvest Losses encountered by the agricutural households during harvest was captured.
Chapter 14: LIVESTOCK
This study presents information on livestock such as cattle, sheep, goats and pigs, as well as poultry. Domestic animals such as dogs and cats are excluded unless they are being raised for food or other agricultural purposes.
Topic |
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INTRODUCTION |
AGRICULTURAL HOUSEHOLDS DEMOGRAPHIC CHARACTERISTICS |
LAND USE |
ACCESS TO EXTENSION SERVICES AND FACILITIES |
EQUIPMENT AND INFRASTRUCTURE |
ACCESS TO CREDIT FACILITIES |
FARM MANAGEMENT |
AQUACULTURE/FISH FARMING |
FORESTRY |
FOOD SECURITY |
OTHER ECONOMIC ACTIVITY |
LABOUR INPUTS |
USAGE AND DISPOSITION OF CROPS |
LIVESTOCK |
The geographical coverage for the NCA-CN 2013/2014 covers only the agricultural households and the population living in those households who are engaged in subsistence farming activities, thus the coverage for the communal sector is only the rural areas and the semi-urban areas.
The NCA-CN 2013/2014 is designed to cover all the agricultural households members regardless of age who reside in the holding on the day of enumeration.
Name | Affiliation |
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Namibia Statistics Agency | Ministry of Economics Planning |
Ministry of Agriculture, Water and Forestry | N/A |
Name |
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NOT APPLICABLE |
Name | Abbreviation | Role |
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The Government of the Republic of Namibia | GRN | Funding |
Food and Agriculture Organization of the United Nations | FAO | Funds and Technical support |
African Development Bank | AfDB | Funding |
Sample size
A total sample size of 10,550 agricultural households was determined to give reasonably reliable estimates at the regional level for the most important variables. The proportional allocation of this sample did not yield the minimum sample size for some of the sparsely populated regions hence a power allocation with some adjustments had to be carried out as a compromise procedure while keeping the overall national sample fixed.
In general,10 agricultural households were sampled from each of the selected PSUs thus having a larger spread of the sample across the population of agricultural households. However, in some of the southern regions having less communal farming activities, the sample size per PSU was raised to 16 agricultural households.
Sample design
A stratified two stage cluster sample design for the communal sector was used. At the first stage, primary sampling units (PSUs) were selected with Probability Proportional to Size (PPS) from the sampling frame based on the Enumeration Areas of 2011 Population and Housing Census. The size measure of a PSU in the sampling frame was the number of agricultural households which was derived from the questions included in the 2011 Population and Housing Census as per the World Programme of Agriculture 2010 (WCA 2010) Handbook recommendations.
The main strata was the regions which are also the primary domains of estimation. The frame units (PSUs) were further stratified implicitly by the constituencies within the regions. The list of agricultural households prepared within a selected PSU formed the secondary sampling frame from which a sample of agricultural households was selected systematically.
A third stage of sampling was introduced to measure objectively the average yields of the three major crops namely; Maize, Sorghum and Millet for the purpose of estimating the production instead of the farmer's estimates. Hence a crop cutting experiment was conducted to measure the average yield of these crops. A list of plots under each of these crops in a sampled PSU was made using the plot information of the selected households within the PSU. These lists then formed the sampling frames for each of the crops in the PSU.
Three plots were then randomly selected from each of the crop lists. If the list contained less than 3 plots then all were included in the experiment. An area was marked within the selected plot according to the FAO guidelines. Matured crops inside this marked area were cut and the weights from wet as well as dry grains were recorded. Grains were weighted while wet as well as dry. These figures were then used to estimate the average yield of each of the crops.
Response rates were computed for each region and the overall response was 95.9 percent.
Since the PPS selection is and unequal probability selection the sample data has to be weighted. These weights which are generally called sample weights or base weights are the inverse of the inclusion probability.
Although the expected sample agricultural households was the responding households would be less than this number. Since the non-response was not too large and the reasons seem to suggest that there are no remarkable differences between the responding and non responding households, the responding households ( were taken as a random sample of the selected households. This will affect the probabilities and accordingly the weight and therefore the non response adjusted weight is
Computer Assisted Personal Interview (CAPI) replaced the conventional paper questionnaire.
CAPI Data entry application design using CSPro 5.0
Back up of raw data
Tabulation (summary tables ) using Stata 13 and MS Excel
Start | End | Cycle |
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2014-02-02 | 2014-07-17 | 6 months |
Name | Affiliation | Abbreviation |
---|---|---|
Namibia Statistics Agency | Minstry of Economic Planning | NSA |
Ministry of Agriculture Water and Forestry | MAWF |
The interviewers were divided into teams of 4 interviewers for which one supervisor is assigned to every team of 4 interviewers. Thus one supervisor and 4 interviewers form one team. Number of interviewers were 708 and supervisors were 177.
The role of the Team Supervisor (TS) will visit enumerators on a regular basis during the enumeration period in order to "spot-check" and/or complete check of the questions in CAPI. Supervisors also supply thier enumerators with the materials and instructions, and try to help them with any problems during the field work.
Personnel from the Head Office team paid visits to the field on an on-going regular basis. During these visits, spot-checking of the performance of interviewers and supervisors were carried out.
Data collection
Data collection and capturing carried out during the NCA 2013/14 was done following international best practices. The enumeration was conducted face-to-face using Computer Assisted Personal Interview (CAPI) replacing the conventional paper questionnaire (PAPI). This approach helped to minimize errors during data capturing and fast tracking data processing. In contrast, information on crop cutting was collected on paper forms and captured in MS Excel at a later stage.
Procedures
A technical subject-matter planning team, consisting of staff members from NSA and MAWF was established to guide the entire census process from planning to implementation. A two day user-producer workshop with various stakeholders was conducted were the draft questionnaire, structure of the census; census methodology; definitions and concepts; and the activity plan were discussed and agreed upon. It was agreed in principle that the census will strictly follow the recommendations from the 2010 Round of the World Census of Agriculture (WCA) document of the FAO. The pilot survey was carried out during December 2013 and the survey instruments were finalized shortly after that.
In January 2014, a one week Training-of-Trainers (ToT) followed by a two week intensive training period for enumerators and team supervisors was conducted in four training venues. A team of four enumerators assigned to one supervisor were constituted and dispatched in the field across the whole country.
The Communal sector census was officially launched on 17 February 2014 and was conducted in two phases. The first phase which started on the 17 February 2014 entailed listing of all households and the interview that lasted for five days. The second, which started during May 2014 covered the crop cutting phase that was used as inputs in the calculation of the yield. The entire data collection in the field work lasted until end of July 2014.
A full publicity program was put in place to sensitize respondents and reduce non-response rate during the census. Each team started by paying a courtesy call to regional and local authorities in order to obtain support of various authorities. In addition, rigorous publicity was done through the print and electronic media country-wide.
Data editing took place at a number of stages throughout the processing, including:
Office editing and coding, Data editing and data cleaning using Stata 13 and CSPro 5.0,
These phases were carried out over a period of 18 months. Out of this period, the designing of tabulation programs, and the generation, verification and correction of tables lasted for 10 months.
Sampling errors have been calculated for 15 selected indicators. The sampling errors are based on the variances of the estimated figures which in turn depend on the sample sizes and the variation observed in the population units.
N/A
Name | Affiliation | URL | |
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Namibia Statistic Agency | Ministry of Economics Planning | www.nsa.org.na | info@nsa.org.na |
Is signing of a confidentiality declaration required? | Confidentiality declaration text |
---|---|
yes | The Namibia Census of Agriculture 2013/14 was conducted under the provisions of the Statistics Act No.9 of 2011. |
The datasets has been anonymized and is available as a Public Use Dataset, accessible to all. It is accessible to all for statistical and research purposes only, under the following terms and conditions:
Namibia Statistics Agency (2015). Namibia Census of Agriculture 2013/2014 /Communal Sector Report, Version 1.0 of the public use dataset (November 2015), Windhoek, Republic of Namibia.
Website: www.nsa.org.na
The Namibia Statistics Agency bears no responsibility for use of the data or for interpretations or inferences based upon public uses.
(c) 2015, Namibia Statistics Agency
Name | Affiliation | URL | |
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Namibia Statistics Agency | Ministry of Economic Planning | inf@nsa.org.na | www.nsa.org.na |
NAM_NSA_NCA_2014_v01
Name | Abbreviation | Affiliation | Role |
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Namibia Statistics Agency | NSA | Ministry of Economics Planning | Producer |
2015-11-23
Version 1.0 ( November 2015)