The farmer's instructions

The plough oxen will have back-up oxen. The attachments of ox to ox should be loose. Each plough will have a back-up plough. The assigned task for one plough is 180 iku (approx. 65 ha), but if you build the implement at 144 iku (approx. 52 ha), the work will be pleasantly performed for you. 180 (?) sila of grain (approx. 180 litres; expressed in the cuneiform as 3 of an unwritten measure comprising 60 sila, gur indicating that the preceding signs specify a capacity) will be spent on each 18 iku area (approx. 6 1/2 ha).