An Index of Agricultural Production is computed to provide a general measure of the yearly changes in the volume of Agricultural Production. The earlier index with 1934 - 38 as base was later revised using 1962 as base and the commodity coverage was also extended by including livestock products in the index. Finally it was revised in 2008 as the base of 2002. Moreover divisions of vegetables, fruits and some major commodities were also included in order to prepare more suitable index.

Indices for (a) tea, rubber, coconut and paddy, (b) pulses, (c) other food crops, (d) vegetables, (e) fruits (f) livestock and livestock products (g) small export crops are computed separately by comparing production volume in 2002. The overall index combining Agricultural Crops and Livestock products provides an indicator of the volume of Agricultural Production. The revised series with 2002 as base year is available from the year 2003 onwards.

The present system of collecting paddy statistics has generally three aspects, namely (1) Statistics on area under paddy, (2) Average yield per unit area, (3) Statistics on paddy production. These statistics are collected in respect of the cultivation seasons of Maha and Yala for each cultivation year.

Statistics on area under paddy are collected each season on the basis of parcel wise complete enumeration, where in all the paddy parcels in the island are listed on the form P1, at village or tract level. For this purpose a “Parcel” is being defined as a plot of land set apart for the cultivation of paddy, cultivated singly or jointly by a person. It may be surrounded by cultivated paddy lands or highlands belonging to other people.

Statistics of paddy yield are compiled from Crop Estimation Surveys conducted on a sample basis. The sampling design adopt for the survey is a stratified three stage random sampling method with D.S. Divisions as strata and mode of irrigation namely; Major, Minor, Rainfed as sub-strata. From each stratum sample villages are select using simple random sampling method where the number of samples per stratum depends on the sownarea. About 3,000 villages/tracts/ kandams are select for each Maha Season and about 2000 villages/ tracts/ kandams are select for Yala Season. In each selected village/ tract/ kandam two parcels are selected at random and each selected parcel a “Liyadde” (plot) is selected on the same basis to conduct the experiment. In each liyadde thus selected the standard experimental plot of size 16 1/2ft. x 16 1/2 ft. (5.03meters x 5.03 meters) is laid out at random. Then the experimental plot is harvested, the grain threshed, winnowed and the yield is recorded separately. From these results average yield per net acre harvested is estimated at district level and island level.

Information on cultivation details such as system of tenure, variety of seed, method of land preparation, method of sowing, method of weed control, use of fungicides and insecticides, application of fertilizer are collected through a sample survey conducted concurrently with the crop estimation survey on paddy. The sample used for estimation of cultivation details is about three times as large as the sample used in the crop survey and the sampling unit used here is the paddy parcel. Using the sample data and the estimated sown extents, the extents associated with the cultivation practices are estimated at district level.

The estimates of paddy production are obtained each season as a product of the net extent harvested and the average yield. The preparation of district wise correction factors to convert Gross area to Net paddy area was done using the results of an area survey conducted for this purpose. All Island correction factor of 85% used hitherto is being used only in respect of Colombo, Gampaha, Puttalam, Ratnapura and Badulla Districts where the area survey work is not completed as yet.

Data for the computation of the cost of production of Tea, Rubber and Coconut are obtained from estatesgrowing Tea, Rubber and Coconut using a mail questionnaire sent out from the Department once a year.

The cost of production relates to the cost per kilogram of manufactured tea. Questionnaires are sent to all the registered tea factories in the island. From the data thus collected the cost of production of a kilogram of made tea is estimated.

The cost of production per kilogram of manufactured rubber is computed at the all island level. Estates of 20 acres and more in extent are considered in thirteen rubber growing districts, where Colombo, Kalutara, Galle, Matara, Ratnapura and Kegalle are the major districts.

The major coconut growing districts are grouped in to 4 regions as follows: 

1. North - Western Region;
2. South - Western Region;
3. North - Eastern Region;
4. Central Region;

The estates in each region are stratified into 4 size groups i.e.20 - 50 acres, 51 - 100 acres, 101 - 250 acres and over 250 acres. The cost of production of coconut is computed for the whole island. 

Statistics of highland crops are collected on the ‘H’ form and livestock statistics on the ‘L’ form. The primary reporters in both these instances are the GramaNiladhari. in North and Eastern Provinces while in rest of the Island are Agriculture Research and Production Assistants (ARPA). The island consolidated statements are prepared using district reports seasonally for highland crops and annually for livestock populations.

The data on the number of animals slaughtered in the licensed slaughter houses are collected annually. 

The Food Balance Sheet is a statement showing the amount of food available, values of calories, proteins and fats on a per capita basis per day during a calendar year. The Sri Lanka Food Balance Sheet confirms to the requirements of the F.A.O. of the United Nations.

Forty items of food classified according to eleven major groups are included in the Food Balance Sheet. The required data are obtained from Government Departments, Private Organizations and the Custom Returns. Where information could not be obtained from these sources, reasonable estimates of such quantities are used in the estimation procedures.

The Department of Census and Statistics (DCS) conducted this census covering the sectors agriculture, industry trade and services. Agriculture and Environment Division was responsible for collection of agriculture sector data under the Economic Census 2013/14. Agriculture sector data collection of the Economics Census 2013/14 was planned to be conducted in two stages. At the first stage, the listing of all estates was carried out during June – July 2013 and the second stage: collection of detail data from the estates and small holdings was carried out during June – August 2014. A preliminary report based on the data collected at the listing of estates has already been released.

• 5.1 Cultivated extent by crops, 2011 – 2018
• 5.2 Cultivated extent of tea, rubber and coconut by district - Census years
• 5.3 Paddy: Extent sown and harvested by irrigation scheme and season, 2009 – 2018
• 5.4 Paddy: Extent sown and harvested by irrigation scheme, season and district, Maha 2014/15 Yala - 2018
• 5.5 Paddy: Gross asweddumised extent by irrigation scheme and cultivation year,1994/95– 2017/18
• 5.6 Paddy: Gross asweddumised extent by irrigation scheme cultivation year and district, 2014/15 – 2017/18
• 5.7 Paddy: Extent sown by variety of seed and season, 2009 – 2018
• 5.8 Paddy: Extent sown by variety of seed, season and district, Maha 2014/15 - Yala 2018
• 5.9 Paddy: Extent sown by method of sowing and season, 2010 – 2018
• 5.10 Paddy: Extent sown by method of sowing , season and district, Maha 2014/15 - Yala 2018
• 5.11 Paddy: Extent sown by method of land preparation and season, 2009 – 2018 (maha and yala)
• 5.12 Paddy: Extent sown by method of land preparation and district, 2014/15 Maha - 2018 Yala
• 5.13 Paddy: Extent sown by method of weeding, use of insecticide and fungicide and season, 2011 – 2018
• 5.14 Paddy: Extent sown by method of weeding, season and district, 2014/15 maha - 2018 yala
• 5.15 Paddy: Extent sown by application of fertilizer and season, 2012 - 2018
• 5.16 Paddy: Extent sown by type of fertilizer used, season and district, Maha 2014/15 - Yala 2018
• 5.17 Highland crops: Extent cultivated of highland crops by district and season, maha 2016/17 - yala 2018

• 5.18 Volume index of agriculture and livestock production, 2012 – 2018
• 5.19 Production of main crops and food crops, 2009 – 2018
• 5.20 Paddy: Production and average yield per net hectare by district and season, Maha 2014/15 - Yala 2017
• 5.21 Production of highland crops by season and district, Maha 2015/16 - Yala 2017

• 5.22 Cost of production of tea per kilogramme, 2012/13- 2017/18
• 5.23 Cost of production of rubber per kilogramme, 2012/13 – 2017/18
• 5.24 Cost of production of coconut per 1000 nuts, 2013/14 - 2018/19

• 5.25 Livestock population, 2012 – 2018
• 5.26 Livestock slaughtered, 2012 – 2018

• 5.27 Availability of calories, protein and fat per day per person, 2012 – 2018
• 5.28 Food balance sheet, 2015 – 2018

• 5.29 Area by type of forest, 2012 – 2018
• 5.30 Area of wild life reserves by type of forest, 2010 – 2018
• 5.31 Production of timber by type, 2010 – 2018

• 5.32 Basic Statistics of Marine Fisheries by fishing district, 20Basic Statistics of Marine Fisheries by fishing district, 2018
• 5.33 Fish Production by Fising Sub - Sectors , 1996 – 2018
• 5.34 Marine Sector Fish Production by Fisheries Districts, 2011 – 2018
• 5.35 Marine Fish Production by Major Commercial Groups, 2011 – 2018
• 5.36 Quantity and value of exports of fish and fishery products, 2013 – 2018
• 5.37 Quantity and value of imports of fish and fishery products , 2013 – 2018
• 5.38 Local Production and Imports of Dried Fish, 2004 – 2018
• 5.39 Operating Fishing Crafts(Marine Sector), 2005 – 2018