Modelling in OWL relationships depending by multiple variables

Dear ontology experts,
 
I have a problem on representing this kind of situation in OWL:
 
- domain is plant nutrition;
- nitrogen is an instance of nutrients (plant nutrients);
- nitrogen hasApplicationRate 20 Kg per hectar, 
- BUT this application rate depends on: crop type, season, and geographical
area.
 
I can model it in OWL full (i suppose)... see attached picture. But can I
model it correctly in OWL DL?
 
hasApplicationRate should be a DataTypeProperty? can i do restrictions on
DataTypeProperties?
or what other mecanism I should use?
 
Special thanks to Claudio and Soonho for solving the previous problem.
 
Regards
Margherita