i6 



Commercial Gardening 



have to be repeated. For these processes drag harrows (fig. 318) which 

 can be obtained for from two up to four horses; cultivators (fig. 319) 



Fig. 318. Drag Harrow 



which can also be obtained for two, three, or four horses; harrows 

 (fig. 320), for one or two horses, and a Cambridge roll (fig. 321), and 



a plough which will turn the land 

 over in rectangular furrows are re- 

 quired. What are called digging 

 ploughs are not so suitable for such 

 work, as they flop the soil over in 

 a confused medley, and it does not 

 so readily catch the tines of the 

 drag or cultivator, unless the land 

 be very light then almost any 

 plough will do. 



When the surface cleaning is 



Fig. sia.-cuitivator thoroughly done the land should 



be baulked up again and so left 



through the winter. In the spring the baulks may be harrowed down; if 

 the holding is near enough to a market to grow vegetables the land may be 



Fig. 320. Harrow 



manured with dung, 40 loads to the acre; or with crushed hoofs, 5 cwt. to 

 the acre; and fine-crushed bones or dissolved bones, 3 cwt. to the acre, and 

 jyg. Part of it can be planted in May with Brussels Sprouts, 



