Agriculture Reference
In-Depth Information
Table 8.
Additional Costs of Buffer Zones Around Bt Maize Fields in Two Model Regions in Bavaria
Model Region I - Intensive Maize Production
Model Region II - Extensive Maize Production
Bt-maize
Bt-maize
Adoption
Buffer
Farms in
Accumulated
Buffer
Farms in
Accumulated
Additional Costs
1)
Rate
Zone
Region
Zone
Region
Additional Costs
percent
Area (ha)
n
/region
/farm
Area (ha)
n
/region
/farm
€
€
€
€
Isolation distance of 20 m
10
292
87
19289
222
118
94
4499
48
30
722
261
47680
183
256
281
9741
35
50
1154
435
76134
175
411
468
15625
33
Isolation distance of 50 m
10
494
87
32576
375
233
94
8869
95
30
1122
261
74085
284
523
281
19888
71
50
1658
435
109409
252
866
468
32898
70
Isolation distance of 100 m
10
634
87
41868
482
320
94
12178
130
30
1575
261
103930
399
755
281
28695
102
50
2364
435
156053
359
1219
468
46306
99
l)
Region I: Gross margin of Bt maize is 66
€
/ha higher than those of conventional varieties.
2)
Region II: Gross margin of Bt maize is 38
€
/ha higher than those of conventional varieties.
Source:
Reitmeier and Menrad, 2006.
