Fjölrit RALA - 15.08.1980, Page 30

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Species Percentage frequency
Pastures 121-122 Pastures 131-132 Pastures 441-442 451-542 461-462 Pastures 141-142 151-152 161-162
Empetrum nigrum 70.6 57.0 74.6 71.7
Betula nana 30.9 12.9
Lichenes 21.6 25.3
Festuca spp. 69. 3 52.3
Vaccinium uliginosum 32.4
Experimental design: The experimental design is shown in the table below
and the site diagram on Figure 10.
Pasture Live- Pasture Grazing Pasture Number of Pasture
ident. stock treat-
ment pressure ha Ewes Lambs ident.
121 Sheep Unferti- Medium 27.0 5 10 121
122 lized Medium 27.0 9 18 122
131 " Heavy 13.5 7 14 131
132 " Heavy 13.5 9 18 132
141 Ferti- Light 7.5 9 18 141
142 lized Light 7.5 7 14 142
151 " Medium 5.0 9 18 151
152 " Medium 5.0 7 14 152
162 " Heavy 2.5 7 14 162
441 Ferti- Light 3.8 5 10 441
442 •• lized Light 3.8 7 14 442
451 •• and Medium 2.5 5 10 451
452 M herbi- Medium 2.5 7 14 452
461 cides Heavy 1.2 5 10 461
462 used Heavy 1.2 6 12 462
181 Unferti- On a common 9 18 181
182 lized range 9 18 182
Procedure: The experiment started 28. June and ended 15. September. In the
experiment there were 104 ewes with twin lambs. The same number of
lambs were of each sex in each pasture.
Experimental animals: The sheep were from the following farms: 1. Toveggur,
2. Asbyrgi, 3. Ingveldarstadir.