|Hektarskördar och totalskördar 2002|
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This report provides final data for the year 2002 for the yield per hectare and total production of cereal crops, peas, oilseed crops, potatoes and temporary grasses. The results are presented for counties, production areas and for all of Sweden.
The tables show the number of observations, yield per hectare in kg, total production in metric tons and crop areas. Standard errors are given for the yield per hectare and total production.
Cereals, peas and oilseed crops
Total production of cereal crops for the whole country is estimated at 5.47 million tons. This is almost equivalent to the average for the previous five years. A decline in the areas of cereals under cultivation was compensated for by high yields per hectare.
The total production of winter wheat is estimated at 1.8 million tons. This is equivalent to about 33 per cent of the total production of cereal crops. Areas under cultivation for winter wheat fluctuate very much due to weather conditions in the autumn of the previous year. Excessive rains in the autumn 2001 offered bad opportunities for sowing winter crops.
Total production of peas is estimated at 84 400 tons, which is about 11 per cent more than the previous year.
The 2002 harvest of rape and turnip rape is estimated at about 159 200 tons. Compared to 2001, this is an increase of 50 per cent. This increase is due to an increase of cultivation of rape and turnip by 50 per cent. The total production of oil flax is estimated at 5 200 tons.
Since 1998, statistics on crop yields for cereals, peas and oilseed crops have been based entirely on an interview survey. The sample of the survey of 2002 consists of 4 350 farmers. The survey was carried out in October. Information was requested for total farm production in tons of these crops and their average moisture content. Yields per hectare at the farm level are calculated by dividing the production by the crop area of the farm. Unharvested crop areas lower the yield per hectare. The total production has been calculated from data on yield per hectare; area statistics has been calculated from final data on usage of arable land. The figures are mainly based on data from the Swedish administrative database for agricultural subsidies, IACS. Crop areas cut as green fodder have been excluded. Unharvested areas and areas cut as green fodder are presented in separate tables.
The results are presented for table potatoes and potatoes for processing of starch. For the whole country, the yield per hectare for table potatoes is estimated at 26 470 kg and the total production is estimated at 613 000 tons. The corresponding figures for potatoes for processing of starch are 35 050 kg and 301 000 tons, respectively. The total production of potatoes in Sweden continues to decrease.
The results for 2002 are based on a mail survey with a sample of 1 304 holdings for table potatoes and a sample of 183 holdings for potatoes for processing starch.
Since 1960, Statistics Sweden has produced statistics for potatoes using an objective method based on probability sampling and physical measurements with samples taken from the fields. The method was changed 1999 to mail enquiries to a sample of farmers. Due to the changes all comparisons between years should be made with great caution. The areas are based on statistics from the administrative database for agricultural subsidies, IACS.
The tables 15 and 16 show the number of observations, the total and reduced yields per hectare in kg and total production in metric tons. Standard errors are also presented. Unharvested areas are shown in table 24. As for reduced yields, the yield per hectare is reduced for small, blighted and green potatoes for table potatoes. The reduction for potatoes for processing of starch is made only for blighted potatoes. These reductions are made with standard values, derived from the objective potato surveys conducted until 1998. Adjustments in the reduced yields have also been made for unharvested areas, which have lowered the yield per hectare. The unharvested area 2002 was estimated at 2.3 per cent for table potatoes and 0.4 per cent for potatoes of processing starch, a little lower than previous years.
For the last few years there have been no official Swedish statistics for yields from temporary grasses. During 2002 a mail enquiry with follow up by telephone was performed. The sample was 700 farming units. The survey only covers temporary grasses harvested as hay, hay-silage and silage, and includes re-growth. It does not cover temporary grazings or re-growth from temporary grasses which is grazed.
The results are presented in tables 17-20. The total production is estimated at 4 012 000 tonnes and the yield per hectare at 5 200 kilogram per hectare, at 16.5 per cent moisture content. Results are also presented for eight production areas.