One cleansing crop, a hoed or cultivated crop.
CONDITIONS WHICH MODIFY THE ROTATION
There are certain conditions which tend to modify the rotation or to influence the farmer in his choice of crops. They are as follows:
First of all the climate will set a limit on the number and varieties of crops from which a choice can be made for a given locality.
The kind of farming which he chooses to carry on, whether stock raising, grain farming, truck farming, or a combination of two or more of these, or others.
Kind of soil. Certain soils are best adapted to particular crops. For example, heavy soils are best suited to wheat, grass, clover, cabbages, etc. Light, sandy soils to early truck, certain grades of tobacco, etc.
The demand for crops and their market value.
Facilities for getting crops to market, good or bad country roads, railroads and water transportation.
The state of the land with respect to weeds, insect pests and plant diseases.