ROTATION OF CROPS, 
Ee Bok Ee bX. 
ROTATION OF CROPS. 
Numerous factors demonstrate the necessity 
of growing different crops on the same land 
during a period of years. Agricultural plants 
differ in their root development and conse- 
quently in their feeding capacity. The clover 
plant is a vigorous feeder and sends its roots 
over quite a range of territory, while the sugar 
beet develops its roots to a much more limited 
extent. 
Rotation rests the land.—We know that 
rotating crops rests the land for some reasons 
which cannot be entirely explained. Farmers 
know that red clover can be grown satisfac- 
torily only a year or two on the same field, 
when the land becomes what is commonly 
termed “clover sick.” Says Sir J. B. Lawes:* 
“Land will also become sick of any other leguminous crop 
if grown too often; but it is a most singular fact that where 
one leguminous crop ceases to grow another will thrive. We 
had a remarkable instance of this in one of our fields which 
was bean sick, and as all our endeavors to grow this crop 
were in vain we at last decided to give up the attempt, and 
* Country Genileman, March 12, 1886. 
