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CHAPTER V – AGRICULTURE , FORESTRY AND FISHERIES
AGRICULTURE
INDEX OF AGRICULTURAL PRODUCTION
(VOLUME)
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. The extension of the coverage made the index more
respresentative. This index has been further revised using a more
recent base period (1977 - 79).
IIndices for (a) Each major crop, (b)
Other export crops, (c) Other seasonal crops and (d) Animal
Husbandry are computed separately as a percentage of average
production during the period 1977 - 79.The overall index combining
Agricultural Crops and Livestock products provides an indicator of
the volume of Agricultural Production. The revised series with 1977
- 79 period as base is available from the year 1978 onwards.
PADDY STATISTICS
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 parcelwise 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.
PADDY YIELDS
Statistics of paddy yield are compiled
from Crop Estimation Surveys conducted on a sample basis. The
sampling design adopted for the survey is a stratified three stage
random sampling method with D.S./A.G.A. Divisions as strata and mode
of irrigation namely; Major, Minor, Rainfed as sub-strata. From each
stratum sample villages are selected using simple random sampling
method where the number of samples per stratum depends on the sown
area. About 3,000 villages/tracts/ kandams are selected for each
Maha Season and about 2000 villages/ tracts/ kandams are selected
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 metres x 5 metres) 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.
CULTIVATION DETAILS
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.
PADDY PRODUCTION
The estimates of paddy production is
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.
COST OF PRODUCTION OF TEA, RUBBER AND
COCONUT
Data for the computation of the cost of
production of Tea, Rubber and Coconut are obtained from estates
growing Tea, Rubber and Coconut using a mail questionnaire sent out
from the Department once a year.
TEA
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.
RUBBER
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.
COCONUT
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.
HIGHLAND CROPS AND LIVESTOCK
STATISTICS
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 Grama
Niladhari. 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.
SLAUGHTER STATISTICS
The data on the number of animals
slaughtered in the licensed slaughter houses are collected annually.
FOOD BALANCE SHEET
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.
Census of Agriculture – 2002
Statistical tables for certain items in
this chapter are based on the information collected through the
Census of Agriculture conducted Island-wide in 2002 by the
Department. In this Census, about 1.8 million Agricultural holdings
which are above 40 perches of land, 1.7 million holdings less than
40 perches of land that are mainly meant for home consumption
purposes (both categories were defined as “Small Holdings”) and also
another 6,577 Agricultural holdings above 20 acres in extent which
were defined as “Estates” or “Large Holdings” were covered. Based on
the tabulations prepared through the scanning of questionnaires,
the items such as extent under Tea, Rubber and Livestock numbers
have been reported in this chapter. The Island reports on the
district-wise detail information for estate sector and small holding
sector have already been released.
| Extent |
| 5.1 |
 |
Cultivated extent of crops, 2002 – 2006 |
| 5.2 |
|
Cultivated extent of tea, rubber and coconut by district
|
| 5.3 |
|
Paddy : Extent sown and harvested by irrigation scheme, 1998 - 2006, maha and yala |
| 5.4 |
|
Paddy : Extent sown and harvested by irrigation scheme and district,
maha 2001/2003 - yala 2006 |
| 5.5 |
|
Paddy : Gross asweddumised extent by irrigation scheme and
cultivation year,1986/87 –2005/06 |
| 5.6 |
|
Paddy : Gross asweddumised extent by irrigation scheme and district,
2002/2003 - 2005/2006 |
| 5.7 |
|
Paddy : Extent sown by variety of seed , 1998 - 2006 maha and yala
|
| 5.8 |
|
Paddy : Extent sown by variety of seed and district, maha 2002/2003
- yala 2006 |
| 5.9 |
|
Paddy : Extent sown by method of sowing, 1999 – 2006 , maha and yala |
| 5.10 |
|
Paddy : Extent sown by method of sowing and district, maha 2002/2003
- yala 2006 |
| 5.11 |
|
Paddy : Extent sown by method of land preparation, 1999 - 2006 maha
and yala |
| 5.12 |
|
Paddy : Extent sown by method of land preparation and district, maha
2002/2003 - yala 2006 |
| 5.13 |
|
Paddy : Extent sown by method of weeding, use of insecticide and use
of fungicide, 1999 - 2006, maha and yala |
| 5.14 |
|
Paddy : Extent sown by method of weeding and district, maha
2002/2003 - yala 2006 |
| 5.15 |
|
Paddy: Extent sown by application of fertilizer ,
2001 – 2006 maha
and yala |
| 5.16 |
|
Paddy : Extent sown by type of fertilizer used and district, maha
2002/2003 - Yala 2006 |
| 5.17 |
|
Cultivated extent of highland crops by district, maha 2004/2005 - yala
2006 |
|
Production |
| 5.18 |
|
Volume index of agriculture and livestock production,
2000
-2006 |
| 5.19 |
|
Production of crops, 2002 - 2006 |
| 5.20 |
|
Paddy : Production and average yield per net hectare by district,
maha 2003/2004 - yala 2005 |
| 5.21 |
|
Production of highland crops by district, maha 2004/2005 - yala 2006 |
| Cost of Production |
| 5.22 |
|
Cost of production of tea per kilogramme,
2001/02 - 2005/06 |
| 5.23 |
|
Cost of production of rubber per kilogramme,
2001/02 - 2005/06 |
| 5.24 |
|
Cost of production of coconut per 1000 nuts,
2001/02 - 2005/06 |
| Livestock |
| 5.25 |
|
Livestock population, 1998 - 2006 |
| 5.26 |
|
Livestock slaughtered, 1998 - 2006 |
| 5.27 |
|
Supply of calories, protein and fat per day per person, 1998 - 2005 |
| 5.28 |
|
Food balance sheet, 2001 - 2005 (Revised) |
| FORESTRY |
| 5.29 |
|
Area of forests, 2001 - 2006 |
| 5.30 |
|
Area of wild life reserves, 1998- 2005 |
| 5.31 |
|
Production of timber, 1999 -
2006 |
| FISHERIES |
| 5.32 |
|
Basic statistics of marine
fisheries , 2006 |
| 5.33 |
|
Fish production by fishing
sub-sectors, 1990 - 2006 |
| 5.34 |
|
Marine sector fish production by
fisheries districts, 2001 - 2006 |
| 5.35 |
|
Marine fish production by major
varieties, 2001 -2006 |
| 5.36 |
|
Quantity and value of exports of
fish and fishery products, 2002 - 2006 |
| 5.37 |
|
Quantity and value of imports of
fish and fishery products, 2002 - 2006 |
| 5.38 |
|
Local production and imports of
dried fish, 1994- 2006 |
| 5.39 |
|
Operating fishing crafts, 1995 -
2006 |
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