Fræðaþing landbúnaðarins - feb. 2010, Side 211

MÁLSTOFA E – ERFðIR – AðBúNAðUR | 211



E
fn
ag
re
in
in
ga
r á
sk
íta
(


)
sý
nu
m
ú
r k
úm
o
g
ge
ld
ne
yt
um
.









 
































































 







 
Þu
rr
ef
ni
(%
)
14
,1

14
,1

15
,8

16
,2

13
,6

15
,6

16
,0

15
,0

2,
0
0,
02
9
2,
0
0,
00
6
G
læ
ði
ta
p
(%
Þ
E)

85
,5

84
,2

84
,8

83
,6

85
,8

84
,7

82
,5

84
,5

1,
8
E.
M

1,
5
<,
00
01

H
ei
ld
ar
N
(K
je
ld
ah
l)
(%
Þ
E)

3,
4
3,
2
2,
6
3,
2
3,
4
2,
9
3,
3
3,
2
0,
4
0,
00
5
0,
5
0,
01
2
A
m
m
on
íu
m
N
(%
Þ
E)

0,
4
0,
4
0,
4
0,
8
0,
5
0,
5
0,
5
0,
5
0,
1
<,
00
01

0,
2
E.
M

Fo
sf
ór
P
(g
/k
g
ÞE
)
14
,7

16
,5

8,
6
10
,3

9,
1
12
,6

18
,2

12
,9

3,
9
0,
00
02

3,
4
<,
00
01

K
al
íu
m
K
(g
/k
g
ÞE
)
6,
8
6,
2
8,
7
14
,9

6,
4
12
,1

9,
1
9,
2
3,
9
<,
00
01

4,
8
0,
01
0
Já
rn
F
e
(g
/k
g
ÞE
)
1,
1
1,
1
0,
9
1,
3
1,
0
0,
9
1,
5
1,
1
0,
3
0,
05
9
0,
3
<,
00
01

K
al
sí
um
C
a
(g
/k
g
ÞE
)
22
,7

24
,6

9,
9
14
,0

16
,4

14
,0

27
,3

18
,5

5,
7
<,
00
01

6,
3
<,
00
01

M
ag
ne
sí
um
M
g
(g
/k
g
ÞE
)
12
,6

12
,5

8,
0
7,
9
12
,5

9,
4
9,
1
10
,4

3,
4
0,
00
1
3,
5
0,
03
2
N
at
ríu
m
N
a
(g
/k
g
ÞE
)
1,
8
1,
9
1,
8
2,
1
1,
9
1,
8
1,
9
1,
9
1,
8
E.
M

1,
7
E.
M

B
re
nn
is
te
in
n
S
(g
/k
g
ÞE
)
4,
6
4,
6
3,
9
4,
5
4,
5
4,
8
4,
0
4,
5
0,
7
E.
M

0,
6
0,
01
6
A
lu
m
in
íu
m
A
l (
g/
kg
Þ
E)

0,
5
0,
5
0,
4
0,
6
0,
4
0,
4
0,
8
0,
5
0,
2
E.
M

0,
1
<,
00
01

M
an
ga
n
M
n
(g
/k
g
ÞE
)
0,
4
0,
4
0,
4
0,
4
0,
5
0,
3
0,
3
0,
4
0,
1
E.
M

0,
06

<,
00
01

Zi
nk
Z
n
(g
/k
g
ÞE
)
0,
3
0,
3
0,
1
0,
2
0,
2
0,
2
0,
3
0,
2
0,
03

<,
00
01

0,
05

0,
00
2
K
op
ar
C
u
(m
g/
kg
Þ
E)

63
,8

63
,8

30
,4

40
,6

49
,0

37
,6

72
,8

51
,4

13
,8

<,
00
01

14
,2

<,
00
01

N
ik
ke
l N
i (
m
g/
kg
Þ
E)

9,
5
9,
9
5,
9
7,
8
8,
5
5,
7
12
,3

8,
5
3,
0
0,
01
9
1,
8
<,
00
01

Tí
ta
n
T
i (
m
g/
kg
Þ
E)

28
,3

28
,0

80
,6

80
,3

48
,1

53
,5

54
,9

51
,9

19
,3

<,
00
01

32
,7

E.
M

1)
H
v:
H
va
nn
ey
ri,
M
ö:
M
öð
ru
ve
lli
r,
St
.Á
r:
St
ór
a
Á
rm
ót
, 2
) E
M
: e
kk
i m
ar
kt
æ
ku
r m
un
ur
á
m
ill
i m
eð
al
ta
la