Hagskýrslur - Hagtöluárbækur - 01.01.1984, Blaðsíða 83

Landbúnaður
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IV-2. JARÐARGRÖÐI 1882-1983. Production of field crops 1882- -1983.
Árleg meðaltöl/ yearly averages Hey 1) Rótarávextir, tunnur Mór, 1000 hestar
Taða Úthey 2)
Þurr taða V othey Kartöflur RÓfur
1 2 3 4 5 6
1882-85 281 595 ... ...
1886,88-90 382 765 6045 8455 139
1891-95 480 1099 13395 13515 173
1896-1900 565 1207 13895 12512 208
1901-05 524 1002 18814 17059 209
1906-10 526 1059 24095 14576 204
1911-15 574 1138 24733 13823 226
1916-20 513 1176 28512 12565 370
1921-25 647 1039 24994 9567 304
1926-30 798 1032 36726 14337 226
1931-35 1001 1019 42642 17319 164
1936-40 1158 1089 79741 18501 168
1941-45 1276 58 879 849 86 10796 135
1946-50 1421 138 633 70000 7021 40
1951-55 1722 258 640 92539 9283
1956-60 2632 323 361 75082 6546
1961-63 3017 324 240 87498 4004
1964 2671 141 84 74331 4080
1965 2635 137 266 87058 5828
1966 2631 98 77 34938 2034
1967 2545 98 93 65214 5582
1968 2769 114 62 56040 4974
1969 2264 154 39 44647 4530
1970 2060 141 92 54057 4282
1971 3077 141 35 114073 7426
1972 3567 163 21 85539 4515
1973 3426 139 15 60296 5060
1975 3328 153 63049 2871
1976 3585 155 69182 7922
1977 3735 162 76417 6536
1978 3465 165 130806 12030
1979 2994 159 60886 2709
1980 3704 174 153409 9023
1981 2979 179 108560 3622
1982 3220 193 142998 6433
1983 3029 220 . . . 35614 3658
1) 1882-1963 1000 hestar. Frá og með 1964 1000 m3. Við umreikning hesta til rúmmetra það
ár var áætlað, að hver rúmmetri af þurri töðu jafngilti 1, 25 hestum, af votheyi 1, 67 hestum og af
útheyi 1 heyhesti. 2) Úthey talið með þurri töðu frá og með 1974.
Headings: 1-3: Hay, 100 tons till 1963, as from 1964 1000 m3. 1-2: Hay from homefields. 1:
Hay. 2: Silage. 3: Hay from meadows. 4-5: Root-crops, 100 kg. 4: Potatoes. 5: Swedish tumips.
6: Peat, 100 tons.
IV - 3 . TÖNSTÆRÐ OG TÖÐUFALL A HEKTARA 1900-81.
Size of fertilized homefields and theiryield of hay 1900-81.
m ' ' 1900 1910 1920 1930 1940 1950 19551960 1965 1970 1975 1981
byrjun, ha 1).. 16933 18593 22031 26184 35937 44498 57474 75360 83677 95915 108751 127968
Töðufall á ha,
hestar 2)...... 36,9 34,6 27,0 37,9 33,8 38,1 40,5 45, 0 35,2 23,0 35,4 27,7
1) size of fertilized homefields at beginning of year, hectares. 2) hay yield per hectare,100 kg.
IV -4. NOTKUN TILBÚINS ABURÐAR 1921-80 1).
Consumption of artificial fertilizers 1921-80 1).
Árleg meðaltöl/ yearly averages 1921 -25 1926 -30 1931 -35 1936 -40 1941 -45 1946 -50 1951 -55 1956 -60 1961 -65 1966 -70 1971 -74 1975 -80
Köfnunarefni/N 18 214 392 506 852 1903 3509 6767 9244 11577 13239 14950
Fosfór/P 15 90 155 189 277 686 1619 5102 4613 6172 7364 8023
Kalf/K 4 80 184 237 120 493 1343 2062 2752 4454 5715 5849
1) Talin í tonnum af hreinum áburðarefnum/in tons of N, P and K.