Annual Agricultural Sample Survey Report 2014-2015

Tanzania, 2016

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Reference ID

TZA-NBS-AASS-2014-2015-v01

Producer(s)

National Bureau of Statistics, Office of the Chief Government Statistician

Metadata

DDI/XML JSON

Created on

Dec 11, 2023

Last modified

Dec 11, 2023

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Identification

Survey ID number

TZA-NBS-AASS-2014-2015-v01

Title

Annual Agricultural Sample Survey Report 2014-2015

Country

Name	Country code
Tanzania	TZA

Study type

Agricultural Survey [ag/oth]

Series Information

This is the first survey of its kind conducted in Tanzania using Point Sample Area Frame Methodology, therefore it limits the comparisons with the previous agriculture censuses and surveys data due to different methodologies applied. The survey collected detailed information on area and production for major crops, potentially livestock and fish farming

Abstract

The survey collected detailed information on area and production for major crops, potentially livestock and fish farming. These crops include maize, paddy, sorghum, wheat, bulrush millet, finger millet, soybeans, cotton and, tobacco. A brief summary of operators and farm characteristics is also given

Kind of Data

Sample survey data [ssd]

Unit of Analysis

physical locations

Version

Version Description

Version 1.0 (October, 2016)

Version Date

2016-09-30

Scope

Notes

The Scope the Annual Agriculture Sample Survey includes:

The Point Details, Farm Operator Details, Farm Area, Crops During Short Rainy Season Of 2014/15 Agriculture Year, Crops During Long Rainy Season Of 2014/15 Agriculture Year, Livestock And Fish Farming

Coverage

Geographic Coverage

National, Mainland (or Zanzibar), Regions

Universe

A statistically sound sample of farm operators was selected using a the point sample area frame. A total of 21,210 sample points were selected. Of the 21,210 sample points, 15,281 points were completed for a 72% response rate.

Producers and sponsors

Primary investigators

Name	Affiliation
National Bureau of Statistics	Government of Tanzania
Office of the Chief Government Statistician	Government of Zanzibar

Producers

Name	Affiliation	Role
Ministry of Livestock and Fisheries, Zanzibar	The Revolutionary Government of Zanzibar	Technical assistance
President’s Office, Regional Administration and Local Governments	The Government of Tanzania	Technical assistance
Ministry of Industries, Trade and Investment	The Government of Tanzania	Technical assistance
The United States Agency for International Development	United Nation	Technical Support
United States Department of Agriculture	United Nation	Technical Support
Ministry of Agriculture, Livestock and Fisheries; Ministry of Agriculture and Natural Resource, Zanzibar	The Revolutionary Government of Zanzibar	Technical assistance
Ministry of Agriculture, Food Security and Cooperatives	The Government of Tanzania	Technical assistance
Ministry of Livestock and Fisheries Developmen	The Government of Tanzania	Technical assistance

Funding Agency/Sponsor

Name	Role
Government of Tanzania	Financial Support
United States Agency for International Development	Financial Support
United States Department of Agriculture	Financial Support

Other Identifications/Acknowledgments

Name	Role
Tanzania regional and district officials	Support

Sampling

Sampling Procedure

The point sample area frame was used to select a statistically sound sample of farm operators than the household-based sampling methods currently used. A total of 21,210 sample points were selected. This method was used as there were no reliable sampling frame identified as information on farm operators were not readily available for consistent monitoring or sampling.

Response Rate

Of the 21,210 sample points, 15,281 points were completed giving out a 72% response rate

Survey instrument

Questionnaires

The well structured questionnaire was used. It covered both large scale and household farming in detail . The following topics were covered ; Farm Ownership, Land Tenure, Crop Production, Crop Prices, Livestock Population and Fish Production.

Data collection

Dates of Data Collection

Start	End
2016-02-01	2016-03-31

Data Collection Mode

Face-to-face [f2f]

Data Collectors

Name	Affiliation
National Bureau of Statistics	Government of Tanzania
Office of the Chief government Statistician	The Revolutionary Government of Zanzibar

Supervision

The first check of the questionnaire was done by enumerators in the field, while the second check was done by enumerator team supervisors, followed by regional and national supervisors during the supervision period. Supervisory visits at all levels of supervision, focused on consistency checks of the questionnaires. Inconsistencies encountered were corrected, and where necessary, a return visit to the respondent was made by the enumerator to correct the information.

Data Collection Notes

Data collection activities for the Survey took one month to complete from February to March, 2016. The only method used for data collection was face to face interview. Field work was monitored through a hierarchical system of supervisors at the top of which was the National Team, followed by the regional supervisors and enumerator team supervisors. The National Team included two senior supervisors who were responsible for overall direction of field operations and responded to queries raised outside the scope of the training exercise.

Data processing

Data Editing

All data were entered manually using CSPro by a staff hired specifically for editing and data entry. Prior to data entry, all questionnaires were cleaned manually to maintain the quality of the data. This involved checking to see if the questionnaire was complete, had correct identifications and correctly filled in information

Access policy

Confidentiality

Is signing of a confidentiality declaration required?	Confidentiality declaration text
yes	Confidentiality of respondents is guaranteed by section 20 of Tanzania Statistics act number 1 of 2002. Before being granted access to the dataset, all users have formally agree: 1. All identifying information such as the name and address of respondent has been removed; and 2. The information is disclosed in a manner that is not likely to enable the identification of the particular person or undertaking or business to which it relates. 3. Not attempt to identify any particular person or undertaking or business; 4. Use of information for research or statistically purpose only; 5. Not to disclose the information to any other person, organization 6. When required by the Director General, return all documents made available to him to the Director General;

Access conditions

The dataset has been anonymized and available as a public use dataset. It accessible to all for statistical and research purposes only, under the following terms and conditions:
1.The data and other material will not be redistributed or sold to other individuals, institutions, or organization without the written agreement of the Tanzania National Bureau of Statistics.
2.The data will be used for statistical and scientific research purposes only. They will be used solely for reporting of aggregated information, and not for investigation of specific individuals or organizations.
3.No attempt will be made to produce links among dataset provided by the National Bureau of Statistics, or among data from the (National Bureau of Statistics) and other datasets that could identify individuals

Citation requirements

The data user shall acknowledge that any available intellectual property righht, including copyright and the data of Employment and Earnings Survey 2014 version 1.0 are owned by National Bureau of Statistics, Tanzania

Access authority

Name	Affiliation	URL	Email
National Bureau of Statistics	Government of Tanzania		dg@nbs.go.tz

Disclaimer and copyrights

Disclaimer

Contacts

Name	Affiliation	Email
Director General	National Bureau of Statistics	dg@nbs.go.tz
Agriculture Stistics Departmental Manager	National Bureau of Statistics	tito.mwisomba@nbs.go.tz
Desk Officer, AASS	National Bureau of Statistics	festo.mwemutsi@nbs.go.tz
NADA Administrator	National Bureau of Statistics	ariv.severe@nbs.go.tz

Metadata production

DDI Document ID

DDI-TZA-NBS-AASS-2014-V1.0

Producers

Name	Affiliation	Role
National Bureau of Statistics	Government of Tanzania	Metadata Producer

Date of Metadata Production

2016-10-28

Metadata version

DDI Document version

version 1.0 (October 2016)

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