FARM CROPS 13 



The clover could not be sown with roots in 

 this way, and so it must necessarily follow a 

 corn crop. 



The Norfolk rotation is not suited to every 

 district, and many variations of it exist. 

 Further, in many cases a strict rotation is not 

 always followed, as it may be altered from time 

 to time as conditions necessitate ; also the rota- 

 tion on one part of a farm may be different than 

 on the rest, owing to the nature of the soil or 

 situation. In no case, however, should the rota- 

 tion be altered so as to violate the principles 

 laid down above. There are only two ways 

 in which a rotation may be altered, one is to 

 grow the same kind of crop two years running, 

 possibly three in some cases, and the other is 

 to multiply the number of crops grown — in 

 other words, say the root land need not all be 

 under turnips, but part may be under mangels, 

 part under potatoes, part under cabbages, and 

 so forth. To return to the first method of 

 altering the Norfolk rotation. A five or six 

 years' rotation may be made by allowing the 

 forage crop to remain down for two or three 

 years, mowing it the first year and grazing and 

 mowing it the second and third years. The 



