Improve the Agriculture of Shady Sands

Go to the east section of Shady Sands and talk to Curtis, the "weather-beaten farmer." If you have a Science skill above 40%, you can inform him of crop rotation through dialogue options.

You can also complete this quest by using the Tell Me About option, but you do not gain the reputation bonus.

This is not given as a quest by anyone, but it is something you can do for additional experience.

Rewards:
 * 500 Experience Points
 * +2 Reputation