Desc Income % cost
     inc  to inc
Basic farm land 175 – –
+ 20 Farmland 208 18.86 600
+ 40 Farmland 242 16.35 1000
+ 60 Farmland 279 15.29 1500
+ 80 Farmland 313 12.19 2500
Payback in Years ( +20 farmland ) 18.18
Payback in Years ( +40 farmland ) 29.41
Payback in Years ( +60 farmland ) 40.54
Payback in Years ( +80 farmland ) 73.53
Farming can be improoved by up to +80%. Doing this will take a lot of money and time, but can be very worthwhile in valuable agricultural areas.

Farming is the second form of generating income, it takes less buildings to implement, but can be a costly exercise for the high farmland improvements.

A useful tool was created by Mike Fay, Ph.D on 11/02/02, the information held in the document is still current and well worth a downloading. It will help you understand the Farm Amortization Schedule in more details.

The table on the left is a case study of the province of Silesia in Poland.  It shows the income generated for each farm land improvement and the cost required to achieve this.
Farming also attracts a number of interesting vices, these are detailed in the table below.  A ruler who looks after his land and makes improvements that are unprofitable, but are seen to be good for the population of the province will intime receive some of the steward vices.  Of cause the same can be said for a ruler who ignores the needs of his population
“Steward” “His extensive program of developing farmlands has brought prosperity to the ordinary people and his regular attention to farming matters has increased agricultural output across the realm. +1 Happiness in all provinces, +10% to all agricultural production.”
“Great Steward” “His extensive program of developing farmlands has brought prosperity to the ordinary people and his constant attention to farming matters has greatly increased agricultural output across the realm. +1 Happiness in all provinces, +20% to all agricultural production.”
“Magnificent Steward” “His extraordinary program of developing farmlands has brought prosperity to the countryside and his agricultural policies have vastly increased agricultural output across the realm. +1 Happiness in all provinces, +30% to all agricultural production.”
“Poor Steward” “He finds agricultural and estate management matters dull and pays them little attention. It is causing poverty in his estates. -1 Happiness, -10% Agricultural output.”
“Bad Steward” “He neglects his duty to manage his estates well, causing poverty and discontent. -1 Happiness, -10% Agricultural output.”
“Absentee Landlord” “He pays no attention whatsoever to his estates, leaving corrupt and incompetent lackeys to do this for him. It is causing widespread hunger and much discontent. -2 Happiness, -30% Agricultural output”