INTER-CROPPING OF CONTINUOUS CROPS 183 



The latter is a point of importance in the case 

 where motor tractors are used. It is much easier and 

 quicker to plough land flat with a motor plough than 

 to attempt to copy old-fashioned horse-ploughing 

 with such an implement. After the land is ploughed 

 the disc harrow is run once, and sometimes twice, 

 in the same direction as the ploughing, then the land 

 is cross disc-harrowed. After the latter operation, 

 the spring tooth harrow follows, then the ordinary 

 zig-zag harrow is run over the land — the first the 

 same way the land has been ploughed, the second 

 at right angles to the ploughing. 



WHEN MOTOR TRACTORS ARE USED 



In passing, it may be remarked that cross disc 

 harrowing land, either with horses or with a motor, 

 is not very satisfactory unless the land is ploughed 

 flat. If the furrows are set up on edge, the discs 

 have a tendency to run between the furrows and turn 

 up the grass. After the final harrowing the seed is 

 put in with the disc drill, and, after drilling, the 

 land is again harrowed with the zig-zag harrow in the 

 opposite direction' to that in which the land has been 

 drilled, after which the land is rolled if dry enough, 

 and if not, the rolling is left until the crop is over- 

 ground. 



On heavy land with a summer or autumn-sown 

 crop, the rolling is always left over until spring-time, 

 as pre-winter rolling on such land is very apt to cake 

 the surface. 



The objection which many farmers have put 

 forward in connection with inter-cropping, or rather, 

 against sowing corn in rows 12" instead of 6" apart or 

 less, is that the yield is likely to be less, when sown 

 in wide, as compared with narrow rows. Such, 

 however, so far, is not the writer's experience. 



