cultivation

Short definition from Wiktionary

Noun

1. 1
   The art or act of cultivating (improvement of land for or by agriculture), as: Tillage: plowing, sowing and raising crops.
2. 2
   The art or act of cultivating (improvement of land for or by agriculture), as: Light tillage: turning or stirring the soil, especially for weed control.
3. 3
   The state of being cultivated or used for agriculture
4. 4
   Devotion of time or attention to the improvement of (something)
5. 5
   Advancement or refinement in physical, intellectual, or moral condition