Íslenskar landbúnaðarrannsóknir - 01.03.1971, Síða 49

STAÐBRIGÐAMYNDUN 47
HEIMILDARRIT - REFERENCES
Adams, F. og Pearson, R. w. 1967: Grop res-
ponse to lime in the Southern United
States and Puerto Rico. Agronomy 12: 161
-186.
Arnon, s. I. og Johnson, c. M. 1942: Til-
vitnun úr Sand and water culture methods.
Eftir Hevitt, E. J. 1952: 98.
Bradshaw, A. D. 1959: Population differenta-
tion in Agrostis tenuis sibth. New Phyto-
logist 58: 208—227.
Bradshaw, A. D. og Snaydon, R. w. 1961:
Differential response to calsium within the
species Festuca ovina. Neiu Phytologist 60
-61: 219-234.
Clarkson, D. T. 1965: Calsium uptake by calci-
cole and calcifuge species in the genus
Agrostis L. J. Ecology 53: 427—435.
Clymo, T. S. 1962: An experimental approach
to the calcicole problem. J. Ecology 50: 707
-731.
Goodman, P. J. 1968: Variation in mineral
nutrition of plants. Ecological aspects of
the mineral nutrition of plants. Ritstj.
Rorison, J. H.: 237-253 Oxford.
Helgason, Bjarni 1959: A study of some soils
in South-Western Iceland: l’h. D. ritgerð
frá Aberdeen Háskóla, Skotlandi.
Helgason, Bjarni 1968: Basaltic soils of south-
west Iceland II. The Jour. of Soil Science
19: 127-134.
Helgason, Bjarni 1969: Kalkþörf íslenzks jarð-
vegs. Freyr 65: 14—17.
Hiltbold, A. E. og Adams, F. 1960: Effect of
nitrogen volatilization on soil acidity
changes due to applied N. Soil Sci. Soc. Am.
Proc. 24: 45—47.
JÓHANNESSON, Björn Og KrisTJÁNSDÓTTIR,
Kristín 1954: Nokkrir eiginleikar mýra á
Suður- og Norðurlandi. llit landbúnaðar-
deildar, B-flokkur 6.
Mcneur, A. J. 1953: Effects of soil acidity on
growth of pasture plants. N. Z. J. Sc. Tech:
311-326.
ÓsKARSSON, Magnús 1969: Frá tilraunastöðinni
á Hvanneyri. Vasahandbók bcenda 19: 233.
PÁLMASON, Friðrik 1971: Persónuleg heimild.
RATCLIFFE, D. 1965: Aspects of the mineral
nutrition of hill pasture grasses. Scottish Pl.
Breeding St. Rec: 151—162.
Small, J. 1954: Modern aspects of pH: 94
London.
Sullivan, E. F. 1962: Effect of the soil reaction,
clipping heigt and fertilization on the
productivity of Kentucky Bluegras sod
transplants, in pot culture. Agron jour. 54:
261-262.
Sveinsson, Ingimar 1965: Kalk og kjarni.
Búnaðarblaðið 5, no. 6—7: 34—39.
TÓMASSON, Þorsteinn 1970: Studies on Iceland-
ic Festuca rubra L. B. Sc. Hon. Ritgerð frá
Aberdeen Háskóla, Skotlandi.
Tureson, G. 1922: The genotypical response
of the plant species to the habitat, Here-
ditas 3: 211.
Wiersam, L. K. og Bakama, K. 1959: Competi-
tive adaptation of the C. E. C. of roots
Plant and Soil 11, no. 3: 287—292.
Woodruff, C. M. 1967: Grop response to lime
in the midwestern United States. Agronomy
12: 207-227.