Productive

a.
  1. Having the quality or power of producing; yielding or furnishing results; as, productive soil; productive enterprises; productive labor, that which increases the number or amount of products.
  2. Bringing into being; causing to exist; producing; originative; as, an age productive of great men; a spirit productive of heroic achievements.
  3. Producing, or able to produce, in large measure; fertile; profitable.