CULTIVATING AND SEEDING. 



95 



to pulverize the surface soil that will have formed 

 a crust during winter. 



Another method of preparing exhausted land Restoring 

 for a systematic rotation is to plow the land shallow Land, 

 with either a single or two-furrow gang plow as soon 

 as the crops are off in the early autumn, then roll 

 and harrow immediately. 



In about ten days cultivate and harrow to en- 

 courage the growth of any weeds or weed seeds that 

 may be in the soil. Cultivate a second time in 

 about ten days with the wide points to cut off all 

 weeds, then give a stroke with the harrows to shake 

 the weeds out to dry. 



Destroying 

 Weeds and 

 Weed Seeds. 



53. SET OF RIBBERS. 



In October spread ten or twelve loads of farm- Manuring and 

 yard manure per acre as far as can be had, and 

 cover same by ribbing the land with a single or 

 double mould-board plow; or a still better method 

 is to use a set of three "libbers" (III. 53) attached 

 either to the frame, of a spring-tooth cultivator or a 

 stiff-tooth subsoiler. 



With this implement one man and three horses Gang or Rit>- 



•1 ■ 1 1 „ r ,, c oers on Sub- 



can rib seven or eight acres per day. With nve soiier Frame, 

 ribbers and four horses ten acres can be ribbed each 

 day. Make ribs about twenty inches wide so that 



