To lands that are foul with weeds and insects.
To sour soils which are sweetened by exposure to air and rain.
Light sandy soils should not be subjected to bare fallow unless they are very foul with weeds. They should always be covered with a crop to prevent loss of plant food by leaching.
CHAPTER XII[ToC]
Harrowing and Rolling
HARROWING
After spading or plowing the next operation in the preparation of the soil is generally raking, harrowing or dragging. The objects of these operations are: