Agriculture Reference
In-Depth Information
2006
Org-Loc
OrgLocDem
use as feed
%
7
Agreste (2007)
45
20
adjusted to meet livestock needs,
remaining used for human needs
total arable land
arable area
1000 ha
4319
N
2
fixing and non
fixing crops
4319
4319
N
2
fixing and non fixing crops
total N
2
fixation
kgNha
−1
yr
−1
19
=N
2
fixation/arable
area
97
56
=N
2
fixation/arable area
synthetic
fertilizers
kgNha
−1
yr
−1
161
Unifa (2009)
0
0
no synthetic fertilizers
manure
kgNha
−1
yr
−1
32
manure production/
arable area
87
54
manure production/arable area
atmospheric deposition
kgNha
−1
yr
−1
12
Ntot deposition,
EMEP
12
12
Ntot deposition, EMEP
total fertilization
kgNha
−1
yr
−1
224
sum
196
122
sum
total crop
exportation
kgNha
−1
yr
−1
124
N
2
fixing used as feed
and non fixing crops
126
101
N
2
fixing used as feed and non fixing
crops
System performance
coverage of livestock needs
local feed
production
ktonNyr
−1
145
455
279
local coverage of feed
requirements
%
95
100
100
import of feed
ktonNyr
−1
8
0
0
no import of feed
