Parameter Assessment (respective points) Points
Site factors Example
Position (proximity to settlements, industry, sea)
Far (2)
Close (4)
Soil type
Sand (1)
Loam (3)
Clay (5)
Humus content
< 2% (2)
2-4% (3)
> 4% (4)
Rooting depth
Shallow (2)
Deep (4)
Physical limitations (compaction, plowpan etc.)
Existing (1)
Partly existing (3)
Not existing (5)
Nmin content in comparison to long-term mean
Below average (2)
Average (3)
Above average (4)
Weather conditions during the vegetation period
Above average (1)
Average (3)
Below average (5)
Cold winter periods
No (1)
Yes (4)
Cultural practices
Cultivation of sulphur demanding crops (rape, cabbage, legumes)
Every 3rd year (2)
Every 4th year (3)
Every 5th year (4)
Presently cultivated crop
Rape, cabbage, legumes (1)
Other crops (3)
S deficiency already observed
Yes (1)
No or unknown (3)
Yield level (t ha-1 )
High (2)
Medium (3)
Low (4)
Relay cropping with green manure
No (2)
Yes (4)
Manuring
Animal manure (heads per hectare in cow units)
0 - 1 (2)
1 - 2 (3)
> 2 (4)
Fertilizers containing S (during the last 3 years)
No (2)
Yes (4)
Evaluation
25 - 32 points, high possibility of S deficiency
