SUCCESSION IN SOILING CROPS. 233 



limit of the cultivated area in Canada it will be very 

 short, and as the southern boundary of the United 

 States is approached, it may be made to cover nearly 

 all the year. It will be the aim in this chapter not 

 only to point out the succession in which soiling 

 crops may be grown, but to so designate the order 

 to be followed in the same, so as to enable the grower 

 to feed each plant in its proper season, and conse- 

 quently when the greatest benefit will be obtained 

 from feeding it. 



It should be understood however that the suc- 

 cession of soiling crops given below in each of the 

 divisions named is intended to furnish a general 

 rather than a specific guide as to the order in which 

 they should be grown. It would be impossible to 

 lay down hard and fast rules that would in all in- 

 stances furnish an absolutely sure guide to the 

 grower, and for the following reasons: 



I, There are individual plants which in 

 favorable locations may be made to furnish 

 green food during all the season of growth. 

 Such are alfalfa and rape. In these areas 

 other plants may also be grown at the 

 same time. In such instances therefore, the ques- 

 tion with the feeder is rather a choice of plants than 

 a succession of the same. 2, Other plants, as vetches, 

 grow vigorously under some conditions, spring and 

 autumn, but not in the summer, hence they are in 

 season for being fed twice a year. 3, When soiling 

 foods are grown as catch crops, the variations in 

 the season of sowing them will prove a disturbing 

 factor to any order of succession that may be fixed 

 upon. 



