96 



RENNIE S AGRICULTURE. 



Eyes of Weeds 

 are Near the 

 Surface. 



Deep Plowing 

 Transplants 

 Perennial 

 Weeds. 



Plowing Down 

 Weed Seeds 

 Pollutes the 

 Sou. 



they may be easily levelled down in spring by 

 harrowing and cultivating. Land prepared in this 

 manner will be in the best possible condition for 

 early spring sowing. 



All the buds or eyes on thistle roots and other 

 perennial weeds are near the surface of the ground, 

 and the roots that run down deep into the subsoil 

 are only feeders and have no buds or eyes to start 

 a new plant. 



By plowing say seven inches deep all the buds 

 are left in the furrow and will sprout and grow 

 quickly — several plants from each root. Thus, in 

 many cases, deep plowing multiplies the plants in- 

 stead of reducing their number. 



Plowing down weed seeds is ruinous to the land, 

 as many varieties of weed seeds will, if excluded from 

 the air, retain their vitality in the soil for fifteen 

 and twenty years 



